Dissertations / Theses on the topic 'Amplificateurs faible bruit – Conception'
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Tongbong, Jeanne Madeleine. "Conception et évaluation d'une technique de BIST pour amplificateurs faible bruit RF." Grenoble INPG, 2009. http://www.theses.fr/2009INPG0149.
Full textProduction testing of Radio Frequency (RF) integrated circuits is costly due to the high cost of the test equipment and the long test times. In order to reduce this cost, DfT (Design-for-Test) and BIST (Built-in Self-Test) techniques are currently under research. However, these techniques are not yet considered by the Semiconductors Industry since their test quality is not fully demonstrated. In this thesis, the design and the evaluation of a BIST technique for RF Low Noise Amplifiers (LNAs) is considered. The BIST technique uses integrated sensors for measuring current consumption and output power of the LNA. The output of theses sensors are DC or low frequency signals that can be treated with low-cost test equipment. The BIST quality is evaluated using test metrics that consider device process deviations, catastrophic and parametric faults. To obtain an estimate of test metrics with an accuracy of ppm (parts-per-million), a first sample of the LNA is obtained by Monte Carlo electrical simulation. Next, a statistical model of the joint probability density function of LNA performances and test measures is obtained. Finally, a million synthetic instances of the LNA is generated by sampling the statistical model. This large sample is used to set the test limits of the embedded sensors and for computing test metrics. The BIST technique has been validated for a ST Microelectronics 0. 25 ¸tm BiCMOS LNA using different statistical models. The validation of the technique at the layout level has also been considered in order to get results as close as possible to the production test of a real LNA population
El, Gharniti Ouail. "Conception, modélisation et caractérisation des transformateurs intégrés sur silicium : application aux amplificateurs faible bruit." Bordeaux 1, 2006. http://www.theses.fr/2006BOR13309.
Full textMabrouki, Aya. "Mise en œuvre de l’effet de substrat dans la conception des amplificateurs faible bruit sous contrainte de faible puissance." Thesis, Bordeaux 1, 2010. http://www.theses.fr/2010BOR14158/document.
Full textAbstract
Fall, Mohamed Papa Talla. "Conception et réalisation d'un amplificateur faible bruit à 2,4 Ghz en technologie CMOS fortement submicronique." Lille 1, 2002. https://pepite-depot.univ-lille.fr/RESTREINT/Th_Num/2002/50376-2002-287.pdf.
Full textChambon, Cédric. "Étude du bruit électrique dans les dispositifs fonctionnant en régime non linéaire : application à la conception d'amplificateurs micro-ondes faible bruit." Toulouse 3, 2007. http://thesesups.ups-tlse.fr/110/.
Full textThis work deals with the study on high frequency noise when components and active circuits are working under large signal conditions. It could be the case for broadband receivers fitted with low noise amplifiers, which are desensitized by blocking signals. Mixers and oscillators are also under consideration. Firstly, a behavioural modelling is described and allows us to point out the interaction of white noise with a sinusoidal signal. The theoretical model is compared to several conditions of operation, and we obtained satisfying agreements. Many amplifiers are tested and compared; at least, the behavioural modelling is used to study their additive noise. The second part is dedicated to measurement techniques we have developed for this work. We are capable to measure noise figure and noise parameters of microwave active devices functioning with strong power signals. We also propose an original method which provides the four noise parameters of discrete components or amplifiers working under large signal condition. The results we have found are indirectly compared to residual phase noise measurements. After all, the last part affects the design of low noise amplifiers working under nonlinear condition. Various silicon bipolar transistors have been characterized, and a figure of merit have been set in order to find the best component taking into account noise figure and linearity. Finally, simulations and experimental results demonstrate the interest of designing circuits working under strong nonlinear regime
Nsele, Séraphin Dieudonné. "Analyse électrique et en bruit basse fréquence et haute-fréquence des technologies InAIN/GaN HEMTs en vue de la conception d'amplificateurs robustes faible bruit en bande Ka." Toulouse 3, 2014. http://thesesups.ups-tlse.fr/2501/.
Full textThe high bandgap technologies are being increasingly popular for over a decade because of their natural ability to perform electronic functions operating at high power, high temperature and high frequency. Among these technologies, one based on the heterostructure AlGaN / GaN is most mature currently at microwave frequencies. The use of a heterojunction InAlN / GaN is an attractive solution to increase the operation frequency of these devices and thus to realize circuits operating at millimeter waves. The first part of our work is devoted to the study of various InAlN/GaN technology developed by III-V Lab. It helped to highlight the different gate current conduction mechanisms through an analysis of the leakage current and the C-V measurements of the Schottky junction. Measures in small-signal showed the frequency dispersion of the output conductance and the extrinsic transconductance until 1 GHz. We have proposed broadband analytical models to take into account the dispersion phenomena during the circuit design. A second part consisted of the study of the background noise in the InAlN / GaN transistors. The low-frequency noise characterizations and modeling revealed and confirmed trapping / detrapping mechanisms observed in the electrical study. The study of highfrequency noise has assessed the technological developments of this sector and to know the optimal conditions for the design of LNAs. In the last part, hybrid low noise amplifiers have been made from these devices deferred flip-chip on alumina to demonstrate the potential of this technology in Ka-band. Single stage amplifiers have been designed especially for stress testing, and have a gain of 5. 6 dB and a noise figure of 3. 1 dB at 29. 5 GHz. The simulations carried out on 3 stages amplifiers indicate interesting performances in terms of gain (20 dB) and noise figure (3 dB) compared to those obtained in the literature on the GaN based devices
Eyoum, Patrick Henri. "Conception d'un amplificateur de faible bruit basé sur l'optimisation et l'intégration d'une micro-inductance /." Thèse, Trois-Rivières : Université du Québec à Trois-Rivières, 2008. http://www.uqtr.ca/biblio/notice/resume/30042223R.pdf.
Full textEyoum, Patrick Henri. "Conception d'un amplificateur de faible bruit basé sur l'optimisation et l'intégration d'une micro-inductance." Thèse, Université du Québec à Trois-Rivières, 2008. http://depot-e.uqtr.ca/1263/1/030042223.pdf.
Full textGuitton, Gabrielle. "Design methodologies for multi-mode and multi-standard low-noise amplifiers." Thesis, Bordeaux, 2017. http://www.theses.fr/2017BORD0861/document.
Full textThe recent enthusiasm for the Internet of Objects as well as for satellite communications leads to the need for high-performance radio-frequency (RF) communication systems. In order to meet the constraints of the mass market, these systems must be compact and be as low power as possible. Beside, they are expected to address multiple communication standards and to adjust their performance to the environment, still in order to reduce the size and the power consumption. Currently, many works focus on the development of low-noise amplifiers (LNA), the most critical block of RF receivers. To address this purpose, the goal is to design multi-mode and multi-standard receivers. Hence, LNAs require design flows that can adapt to the different technologies and topologies in order to meet any given set of specifications. This thesis aims at the development of simple and accurate design methodologies for the implementation of low-noise amplifiers.The first proposed methodology is dedicated to the implementation of a LNA in COTS technology for spatial applications. This LNA offers a broadband matching to address several standards. It is designed to be part of an RF receiver for nano-satellites. Thus, the latter is first studied in order to determine the specifications based on the standards of the targeted applications.The second methodology is dedicated to the implementation of LNAs in CMOS technology for any kind of applications. This methodology is first illustrated with basic topologies and then applied to an highly linear inductorless LNA. The design methodology also enables a fair comparison between the topologies and also CMOS technologies, even the most advanced ones such as the 28 nm FDSOI.Finally, reconfigurability is added to the inductorless LNA, to address several standards while retaining the optimum sizing given by the previously introduced methodology. Indeed, the size and polarization of each transistor are digitally controlled in order to adjust the LNA's performance to a given standard. Furthermore, the study of N-path filters combined with the proposed LNA is explored to improve the linearity of the circuit
Sejalon, Frédéric. "Conception et réalisation d'amplificateurs cryotechniques faible bruit à base de transistors à effet de champ dans la bande 16-20 GHz." Toulouse 3, 1993. http://www.theses.fr/1993TOU30201.
Full textFadhuile-Crepy, François. "Méthodologie de conception de circuits analogiques pour des applications radiofréquence à faible consommation de puissance." Thesis, Bordeaux, 2015. http://www.theses.fr/2015BORD0028/document.
Full textThesis work are presented in the context of the integrated circuits design in advanced CMOS technology for ultra low power RF applications. The circuits are designed around two concepts. The first is the use of the inversion coefficient to normalize the transistor as a function of its size and its technology, this allows a quick analysis for different performances or different technologies. The second approach is to use a figure of merit to find the most appropriate polarization of a circuit based on its performance. These two principles were used to define effective design methods for two RF blocks: low noise amplifier and oscillator
Desèvedavy, Jennifer. "Conception de circuits intégrés radiofréquences reconfigurables en technologie FD-SOI pour application IoT." Thesis, Bordeaux, 2018. http://www.theses.fr/2018BORD0177/document.
Full textCommunicating objects are inviting themselves into daily life leading to digitization of the physical world. This explosion of multimedia wireless applications for consumer electronics makes the power consumption a key metric in the design of multi-mode wireless portable devices. Conventional transceivers have fixed performances and are designed to meet high performances in all wireless link conditions. However, most of the time, the channel of communication is not at worst case and these transceivers are therefore over specified. Being aware of the channel link conditions would allow such devices to adapt themselves and to reduce significantly their power consumption. Therefore, the challenge is to propose a QoS (Quality of Service) in terms of communication range, response time as instance, equivalent to industrial modules with a reduced overall power consumption.To address this purpose, this thesis proposes a design strategy for the implementation of adaptive radio-frequency receiver (Rx) modules. Hence the Rx front end achieves the correct QoS for various scenarii of communications with a minimum of power consumption.As a proof of concept, the adaptive approach is demonstrated with the design of a tunable LNA (Low Noise Amplifier). As the first element of the receiver chain, the LNA limits the receiver in terms of sensitivity and is therefore a good candidate to perform reconfiguration. The body biasing of the FD-SOI (Fully Depleted Silicon-On-Insulator) technology is first exploited to reduce the power consumption of a circuit and then as an opportunity to perform circuit tunability
De, Souza Marcelo. "Conception d'amplificateur faible bruit reconfigurable en technologie CMOS pour applications de type radio adaptative." Thesis, Bordeaux, 2016. http://www.theses.fr/2016BORD0295/document.
Full textMobile communication systems allow exploring information in complex environments by means of portable devices, whose main restriction is battery life. Once battery development does not follow market expectations, several efforts have been made in order to reduce energy consumption of those systems. Furthermore, radio-frequency systems are generally designed to operate as fixed circuits, specified for RF link worst-case scenario. However, this scenario may occur in a small amount of time, leading to energy waste in the remaining periods. The research of adaptive radio-frequency circuits and systems, which can configure themselves in response to input signal level in order to reduce power consumption, is of interest and importance. In a RF receiver chain, Low Noise Amplifier (LNA) stand as critical elements, both on the chain performance or power consumption. In the past some techniques for reconfigurable LNA design were proposed and applied. Nevertheless, the majority of them are applied to gain control, ignoring the possibility of linearity and noise figure adjustment, in order to save power. In addition, those circuits consume great area, resulting in high production costs, or they do not scale well with CMOS. The goal of this work is demonstrate the feasibility and advantages in using a digitally controlled LNA in a receiver chain in order to save area and power
Os sistemas de comunicação móveis permitem a exploração da informação em ambientes complexos através dos dispositivos portáteis que possuem como principal restrição a duração de suas baterias. Como o desenvolvimento da tecnologia de baterias não ocorre na velocidade esperada pelo mercado, muitos esforços se voltam à redução do consumo de energia dos circuitos eletrônicos destes sistemas. Além disso, os sistemas de radiofrequência são em geral projetados para funcionarem de forma fixa, especificados para o cenário de pior caso do link de comunicação. No entanto, este cenário pode ocorrer em uma pequena porção de tempo, resultando assim no restante do tempo em desperdício de energia. A investigação de sistemas e circuitos de radiofrequência adaptativos, que se ajustem ao nível de sinal de entrada a fim de reduzir o consumo de energia é assim de grande interesse e importância. Dentro de cadeia de recepção de radiofrequência, os Amplificadores de Baixo Ruído (LNA) se destacam como elementos críticos, tanto para o desempenho da cadeia como para o consumo de potência. No passado algumas técnicas para o projeto de LNA reconfiguráveis foram propostas e aplicadas. Contudo, a maioria delas só se aplica ao controle do ganho, deixando de explorar o ajuste da linearidade e da figura de ruído com fins de economia de energia. Além disso, estes circuitos ocupam grande área de silício, resultando em alto custo, ou então não se adaptam as novas tecnologias CMOS de baixo custo. O objetivo deste trabalho é demonstrar a viabilidade e as vantagens do uso de um LNA digitalmente configurável em uma cadeia de recepção de radiofrequência do ponto de vista de custo e consumo de potência
Coustou, Anthony. "Conception et caractérisation de circuits intégrés en technologie BiCMOS SiGe pour application de télécommunication en bande X." Phd thesis, Université Paul Sabatier - Toulouse III, 2001. http://tel.archives-ouvertes.fr/tel-00131800.
Full textBouvier, Stéphane. "Conception et mise au point d'un amplificateur integre rapide, a transimpedance, a faible bruit. Applicaiton a la detection de photons uv." Université Louis Pasteur (Strasbourg) (1971-2008), 1993. http://www.theses.fr/1993STR13255.
Full textCimino, Mikael. "Conception de systèmes radiofréquences sous contraintes de fiabilité étendue." Bordeaux 1, 2007. http://www.theses.fr/2007BOR13438.
Full textSeverino, Raffaele Roberto. "Design methodology for millimeter wave integrated circuits : application to SiGe BiCMOS LNAs." Thesis, Bordeaux 1, 2011. http://www.theses.fr/2011BOR14284/document.
Full textThe interest towards millimeter waves has rapidly grown up during the last few years, leading to the development of a large number of potential applications in the millimeter wave band, such as WPANs and high data rate wireless communications at 60GHz, short and long range radar at 77-79GHz, and imaging systems at 94GHz.Furthermore, the high frequency performances of silicon active devices (bipolar and CMOS) have dramatically increased featuring both fT and fmax close or even higher than 200GHz. As a consequence, modern silicon technologies can now address the demand of low-cost and high-volume production of systems and circuits operating within the millimeter wave range. Nevertheless, millimeter wave design still requires special techniques and methodologies to overcome a large number of constraints which appear along with the augmentation of the operative frequency.The aim of this thesis is to define a design methodology for integrated circuits operating at millimeter wave and to provide an experimental validation of the methodology, as exhaustive as possible, focusing on the design of low noise amplifiers (LNAs) as a case of study.Several examples of LNAs, operating at 60, 80, and 94 GHz, have been realized. All the tested circuits exhibit performances in the state of art. In particular, a good agreement between measured data and post-layout simulations has been repeatedly observed, demonstrating the exactitude of the proposed design methodology and its reliability over the entire millimeter wave spectrum. A particular attention has been addressed to the implementation of inductors as lumped devices and – in order to evaluate the benefits of the lumped design – two versions of a single-stage 80GHz LNA have been realized using, respectively, distributed transmission lines and lumped inductors. The direct comparison of these circuits has proved that the two design approaches have the same potentialities. As a matter of fact, design based on lumped inductors instead of distributed elements is to be preferred, since it has the valuable advantage of a significant reduction of the circuit dimensions.Finally, the design of an 80GHz front-end and the co-integration of a LNA with an integrated antenna are also considered, opening the way to the implementation a fully integrated receiver
Collot, Ludovic. "Étude de nouvelles architectures de filtres RF intégrés dans le contexte de la radio opportuniste." Limoges, 2011. https://aurore.unilim.fr/theses/nxfile/default/790e39b6-b073-4378-9625-215ed53b5b21/blobholder:0/2011LIMO4020.pdf.
Full textThis work concerns the conception of microwaves filtering functions at the same time band-pass, MMIC technology compliant, tunable and differential. The main objective is to realize filtering structures compatible with opportunist radio. The second objective is to demonstrate that ferromagnetics inductors improves the performance of such devices. Commersialised RF receivers are deadlocked due to their topologies and used components (SAW filter, LNA for example). We put forward new integrated circuits : filtering LNA and 1, 2 and 3 poles filters usable in fully frequency tunable receivers. These circuits are Q-enhanced resonator based. They have a continuous frequency and bandwidth tunability over an octave. The observed results at first for filtering LNA mixe wide tunablility, gain and low noise figure on a unique MMIC circuit. This contribution is a first step toward opportunists receivers
Bensahla-Tani, Benoît. "Contribution à la conception et à la réalisation d’émetteurs/récepteurs monolithiques 140 GHz pour réseaux de capteurs sans fil." Thesis, Lille 1, 2013. http://www.theses.fr/2013LIL10174/document.
Full textThis thesis is a contribution to the development of transceivers for monolithic millimeter-wave wireless sensors networks. The deployment of short-range and autonomous wireless sensors networks tends towards ambient intelligence, changing the way we interact with our environment. The Internet of Things is democratizing rapidly with an unprecedented increase of connected objects. These nodes must and should become more discrete and independent, while still improving their features and performance. Moreover, the increase in nodes number constituting those networks amplifies well-known issues as interferences and indoor multipath problems. The development of sensors using millimeter-wave communications (D-band and G-band) should allow smaller nodes by reducing the antennas dimensions since the antenna is usually the technological lock in system integration. This integration will be accompanied by solutions for reducing node’s consumption. Thus, we have designed antennas, based on slot-line to reduce the usual constraints of antenna design. The antennas are well on substrates of high permittivity and small dimensions, with MMIC compatible technology. The experimental results are well consistent with the 3D electromagnetic simulation. We have also performed an experimental characterization of amplifiers and extensive study of amplifier’s stability in G-band. This study was performed using NDF method. This has allowed us to design a low noise amplifier that can be controlled by short pulses in order to realize a very low power tranceiver suitable for autonomous wireless networks-sensors
Lohou, Anaël. "Conception de circuits intégrés pour antenne à pointage électronique destinée aux télécommunications par satellite en bande Ka." Thesis, Limoges, 2018. http://www.theses.fr/2018LIMO0096/document.
Full textIn a world where the information is moving faster and faster, it is important to be able to stay connected continuously. Some new solutions for air transport connectivity are in development thanks to the rise of satellite communications. This thesis work is part of an electronically steerable antenna array project, developed as a solution to achieve In-Flight Connectivity in Ka-band. A state- of-the art review on electronically steerable antenna arrays is also presented. In these arrays, each radiating element needs a specific amplitude and phase to obtain a scanning beam by adding their contribution. This thesis focus on the design of a GaAs MMIC chip inclusion two functions: a phase shifter and a variable-gain low-noise amplifier. The simulation and measurement results are presented for these two functions
Germain, Yves phaede. "Méthode de conception des systèmes différentiels RF utilisant le formalisme des Modes Mixtes." Thesis, Limoges, 2015. http://www.theses.fr/2015LIMO0010/document.
Full textThis research work aims to develop analytical tools for the analysis and design of differential systems. While the use of differential circuits in RF reception/transmission chains is increasingly growing, there is no accurate method to study their stability. First the common tools to study RF differential components are introduced. Then, the development of a CAD tool that can be rigorously used to investigate the extrinsic stability of linear differential systems is presented. Finally this tool is applied to study the stability of in a real case. The design addresses a three port component that aims to convert the differential output of digital to analog converter into a single-ended access for a spatial application purpose. This broadband active balun is designed using BiCMOS technology. Measurements are performed and the results are in good agreement with the simulation. All the initial specications are achieved, which validate the approach developed in this study
Lanzeray, Sylvain. "Méthodologie de CAO innovante pour la conception de MMICs prenant en compte les pertes des éléments réactifs des technologies intégrées." Thesis, Limoges, 2018. http://www.theses.fr/2018LIMO0097/document.
Full textDue to the evolution of wireless systems and data rate, it is necessary to increase microwave operating frequencies, especially in space industry. Optimization of existing circuit topologies are always not enough and therefore, we need to synthetize new circuits. Unfortunately, most of the existing synthesis methods, including in CAD softwares, are only based on lossless passive component models. With the increase of operating frequency, we need to take the effect of losses in the passive component models during synthesis. This thesis introduces a new synthesis and design method for low noise integrated circuits(low noise amplifier and mixer). Lossy passive component models from foundries, connecting wires, junctions and co-design (amplification and filtering or mixing and filtering)are included. The design procedure was validated by simulations and measurements
Izquierdo, Christian. "Conception et réalisation d’un front-end analogique pour un récepteur multistandard multi-mode." Thesis, Lille 1, 2011. http://www.theses.fr/2011LIL10013/document.
Full textThe aim of this thesis is the design of a wide-band RF analogue front-end for a cellular multi-standard and multiband receiver. The main limitation of receivers today is the need of external SAW filters to protect the LNA and mixer from out-of-band interferers. In this thesis we propose a new technique of positive feed-back which transposes the filters transfer function in RF. Thus, a selective RF filter is created in the LNA input to improve non-linearity performances of the receiver. This RF filter is also configurable in bandwidth and center frequency. An experimental prototype has been made in 65nm CMOS technology. The positive feed-back improves the LNA out-of-band IIP3 by 17dB. The center frequency is configurable from 1.3GHZ to 2.85GHz. Power consumption is of 30mW, while maximal NF is of 6.5dB
Chen, Si. "Conception d’ASICs Mixtes Durcis aux Radiations pour Observatoires Spatiaux." Thesis, Université de Paris (2019-....), 2019. http://www.theses.fr/2019UNIP7051.
Full textThe subject of my thesis is the development of radiation-hardened mixed-signal Application-Specific Integrated Circuits (ASICs) for space observatories. The thesis takes place in the context of a future X-ray space observatory of the European Space Agency, named Advanced Telescope for High ENergy Astrophysics (ATHENA). The ASICs developed belong to one of the two scientific instruments of the observatory, called X-ray Integral Field Unit (X-IFU) and are dedicated to one of the subsystems of the X-IFU instrument, the WFEE (Warm Front End Electronics).The WFEE is a mixed electronic system, mainly including a Low Noise Amplifier (LNA), a configurable SQUID bias, a buffer and a thermometer. Consequently, my thesis work is composed of two parts: the digital part and the analogue part.My contributions to the digital microelectronics of the WFEE are presented in Part III of my thesis. It includes the design of a new radiation-hardened digital library and the creation of a new I2C decoder with optimised schematic and layout, made of my new digital library. The representative radiation assessment results concerning the components and 8-bit registers with such radiation-hardened design are also discussed in Part III of the thesis. All the digital circuits of the two new ASICs “AwaXe_v2” and “AwaXe_v2.5” are made of this new radiation-hardened digital library, as well as those in the future ASICs. The optimised I2C decoders have been proved a good functioning along with the other circuits, integrated into the “AwaXe_v2” and “AwaXe_v2.5”.My contributions on the analogue circuits of the WFEE are presented in Part IV. It includes the design of an LNA, a buffer, a current reference and a Digital-to-Analog Converter (DAC). The LNA is critical for fulfilling the unprecedented high spectral resolution of 2.5 eV proposed by the X-IFU instrument. Its original design has been integrated into the ASICs v2 and v2.5, both fully tested and showing satisfying and coherent results. Its performance has been experimentally proved to fulfil all the specifications required by the CNES. Operating within the frequency band of 1-5 MHz, it provides a super-linear voltage gain of 85 V/V, with a large bandwidth of −1 dB up to 17.5 MHz and a low gain drift < 350 ppm/K. It realises an ultra-low voltage noise ≈ 0.8 nV/√Hz at the input, as well as a low 1/f noise corner frequency < 4 kHz, a good PSRR and CMRR. The buffer uses a similar design as the LNA and needs to be further studied in future work. The current reference has been fully tested with an output of 1 mA. Thanks to its original design compensating a CTAT and a PTAT reference, it has been proved to be capable of providing a super-stable temperature independent current, perfect for the SQUID bias. At last, I have also developed an 8-bit DAC for the SQUID bias. 8 DACs along with a current reference and a series bus compose a complete SQUID bias of one WFEE channel. This circuit has been integrated into the ASIC “AwaXe_v2.5” and showed a good result for the first measurement.In conclusion, my thesis has yielded two ASICs for the WFEE: “AwaXe_v2” and “AwaXe_v2.5”. Both ASICs show good performance. In particular, the last ASIC integrates all the components of one WFEE channel, which can be considered as a prototype. Thus, it is a good representative of my work. Moreover, the high performance of the LNA and the current reference also give them the potential to adapt with other similar scientific missions
Bardyn, Jean-Paul. "Amplificateurs CMOS faible bruit pour applications sonar." Lille 1, 1990. http://www.theses.fr/1990LIL10167.
Full textChristoforou, Georges. "Conception de préamplificateurs intégrés pour fonctionnement à basse température et sous rayonnement intense." Université Joseph Fourier (Grenoble), 1998. http://www.theses.fr/1998GRE10031.
Full textOlomo, Ngongo Ambroise. "Synthèse et réalisation d'amplificateurs micro-ondes faible bruit et transimpedance par la méthode des fréquences réelles." Brest, 1992. http://www.theses.fr/1992BRES2021.
Full textBusquère, Jean-Pierre. "Développement et intégration de MEMS RF dans les architectures d'amplificateur faible bruit reconfigurables." Toulouse, INSA, 2005. http://www.theses.fr/2005ISAT0042.
Full textNowadays, high frequencies modules must present electric performances unceasingly improved but also, new functionalities as well as strong compactness, and manufacturing costs, which are more and more reduced. SiGe technologies enables to plan the realization of integrated circuits until the millimetre-length frequencies while, in the same time, the fast development of RF MEMS technologies makes possible to design new functionalities. Within the framework of this memory, we will present the development of a reconfigurable in frequency Low Noise Amplifier at HIPERLAN (5. 5 GHz) and BLUETOOTH (2. 45 GHz) frequencies, thanks to the specific association of the SiGe technologies developed by STMicroelectronics and RF MEMS elaborated at LAAS-CNRS. In the first part of this memory, we propose the concept of a reconfigurable in frequency Low Noise Amplifier, which is assembled in post-processing with RF MEMS varactors on the integrated SiGe circuit. Design and simulated performances of amplifiers integrated monolithically or through wire bonding are presented. The second part is entirely devoted to the design and the realization of RF MEMS, according to the different specifications defined previously. Electromagnetic and mechanical considerations and optimised process are presented. The RF MEMS characterization led to performances located at the state of the art for varactors. The last part is dedicated to the assembly of both MEMS and SiGe technologies. Monolithic (currently called Above IC), flip chip and wire bonding integrations have been studied. Finally the assembled test modules are presented and characterized
Boutez, Corinne. "Amplificateurs cryogéniques faible bruit à base de transistors à hétérostructures de huate mobilité pour applications spatiales." Lille 1, 1997. http://www.theses.fr/1997LIL10010.
Full textDupis, François. "Analyse temporelle et conception d'oscillateurs microondes a faible bruit de phase." Limoges, 1986. http://www.theses.fr/1986LIMO0001.
Full textNguyen, Tran Linh. "Caractérisation et modélisation d'interconnexions et d'inductances en technologie BiCMOS : application à l'amplification faible bruit." Cergy-Pontoise, 2009. http://biblioweb.u-cergy.fr/theses/09CERG0445.pdf.
Full textMobile communications involve analogue and digital elements. The analogue part relates usually to transmission, using a power amplifier while a low noise amplifier (LNA) plays an essential role in reception. This amplifier allows amplifying weak signal received from the antenna without degradation. Nowadays, silicon technology is frequently used in microwave since this technology possesses good performances at high frequencies and this low-cost technology offers a possibility to integrate on a same chip the analogue and digital part. However, due to electromagnetic coupling effects in the conductive substrate, elements disposed on this type of substrate like interconnections, passive elements have undesirable parasitic characteristics. In this thesis, we have thus characterized passive elements (interconnects and inductors) on a silicon substrate. Starting with the variation against frequency of the fundamental parameters, we introduce a new model for transmission lines and integrated inductors on a silicon substrate. The extraction of elements in the model is completely analytical without any optimization procedure. Finally, we apply the obtained results to an LNA design
Sion, Arnaud. "Conception de sources à très faible bruit de phase pour les radars automobiles." Limoges, 2002. http://www.theses.fr/2002LIMO0058.
Full textGourdon, Cyril. "Simulation en bruit et conception d'OCT MMIC à très faible bruit de phase pour applications automobiles et télécommunications." Limoges, 2006. https://aurore.unilim.fr/theses/nxfile/default/ced5d94b-986c-4467-9955-25e9f001ce8b/blobholder:0/2006LIMO0070.pdf.
Full textThe work presented in this memory is related to the microwaves voltage controlled oscillators (VCO). These VCO are used in the automobile radars and telecommunications applications. After the presentation of the two fields of application of the oscillators, we are interested in the phase noise of oscillators. The second part is devoted to the presentation of an advanced low frequency noise model of InGaP/GaAs HBT. The cyclostationary low frequency noise sources are justified. The whole noise model is implemented in the nonlinear HBT model used in the UMS foundry. In the third part, we have applied the design method and optimisation of performance of voltage controlled oscillators in MMIC technology and "pushpush" configuration. Finally, simulations and measurements results validate the proposed low frequency noise modelling of multi-fingers HBT. Moreover, performance of several oscillators are presented and compared with existing VCO
Boujamaa, El Mehdi. "Interface faible consommation pour capteurs MEMS résistifs à faible sensibilité." Thesis, Montpellier 2, 2010. http://www.theses.fr/2010MON20186.
Full textSince resistive sensors exist, the Wheatstone bridge has been the most commonly used conditioningand read-out architecture. Even with the development of MEMS in the last decade, the Wheatstonebridge remains the preferred solution to transpose a physical magnitude into the electrical domain assoon as a resistive transduction method is used. Nevertheless the Wheatstone bridge introduces amajor issue for low-power sensors, the dependence of resolution to power consumption. Moreover,the output signal is directly proportional to the supply voltage. Finally, power consumption is theprice to pay for high resolution in a Wheatstone bridge.Low-power requirement, in mobile applications, is probably one of the main reasons to explain whycapacitive transduction has been preferred for many MEMS. Indeed, even if the fabrication process isoften more complex than for resistive sensors, the power consumption of capacitive transduction isfar below the one of dissipative resistor-based sensors.In order to extend the potential application of resistive MEMS, a power-efficient interface circuit isrequired. My PhD thesis deals with the design and manufacturing of an innovative conditioning andread-out interface for resistive MEMS sensor. The proposed structure includes a digital offsetcompensation for robustness to process, voltage, temperature variations, and/or analog to digitalconversion. Results demonstrate good resolution to power consumption ratio and a good immunityto environmental parameters. Experimental results on a fully integrated CMOS/MEMS sensor finallydemonstrate the efficiency of this promising read-out architecture called The active bridge
Samnouni, Mohammed. "Fabrication et caractérisation du HEMT InP pour amplification faible bruit THz." Thesis, Lille 1, 2019. http://www.theses.fr/2019LIL1I103.
Full textProgress of III-V technologies are now making it possible to design electronic components operating in the millimeter and sub-millimeter wave range (THz) are facing the needs of the telecommunications and electronics market for various industrial sectors. The technology of InP High Electron Mobility Transistor (HEMT) allowed in recent years a remarkable progress in the realization of integrated circuits at very high frequencies (operating frequency at 1 THz) and low noise. Few world players in microelectronics (none in France) have established performances reaching these THz frequencies. We propose to develop a technology that meets this demand.We propose to develop InAlAs /InGaAs/InAs HEMT with THz cutoff frequency and low noise, mainly for reception-detection THz electronic system. The work will therefore focus on the determination of an optimal epitaxial structure using InAlAs/InGaAs/InAs materials by performing Hall effect measurements of several heterostructures, in order to determine the layer offering a better mobility / electronic charges tradeoff. The modifications of the transistor geometry (gate length, recess size and the spacings of the electrodes of the transistor) made it possible to considerably increase the operating frequency of the transistor. We achieved the characterizations of S-parameters up to 750 GHz and noise up to 110 GHz, in order to validate the technological optimizations
Vanabelle, Éric. "Filtres actifs et amplificateur faible bruit monolithiques à 22GHz en technologie P-HEMT destinés à la télévision haute définition." Lille 1, 1999. https://pepite-depot.univ-lille.fr/LIBRE/Th_Num/1999/50376-1999-287.pdf.
Full textTsouli, Mohammed. "Conception, réalisation et caractérisation d'amplificateurs a faible distorsion non-linéaire a base de transistors bipolaires à hétérojonction pour communications spatiales." Toulouse 3, 1994. http://www.theses.fr/1994TOU30132.
Full textChambon, Cédric. "Etude du bruit électrique dans les dispositifs fonctionnant en régime non linéaire. Application à la conception d'amplificateurs micro-ondes faible bruit." Phd thesis, Université Paul Sabatier - Toulouse III, 2007. http://tel.archives-ouvertes.fr/tel-00206284.
Full textMaxin, Jérémy. "Oscillateurs optoélectroniques largement accordables et faible bruit pour les applications radar." Toulouse 3, 2014. http://thesesups.ups-tlse.fr/2727/.
Full textThe objectives of this thesis is the developement of two optoelectronic oscillator architectures dedicated to the generation of low noise microwave signals for radar applications. The first oscillator is based on the stabilization of the beatnote of a widely tunable dual-frequency laser with an optical fiber delay line. A fine analysis of the stabilization loop implemented with a 100 m long optical fiber allowed us to reach the technical limit fixed by the loop microwave amplifiers. The oscillator is tunable from 2. 5 to 5. 5 GHz by 2 MHz steps and present a phase noise power spectral density of -105 dBc/Hz at 10 kHz offset from the carrier (performance independent of the carrier frequency). The use of two optical fibers in a double delay lines architecture and of a fiber ring resonator as a delay line are also investigated. The second architecture developed is a coupled optoelectronic oscillator (COEO). The architecture, similar to a regenerative mode-locked laser, is realized by coupling a resonant laser cavity to a resonant optoelectronic loop. The developpement of this oscillator is based on a new architecture of SOA : an asymmetrical cladding semiconductor optical amplifier. This component offers better saturation power and lower intrinsic noise than the classical design. The COEO operates around 10 GHz. A phase noise power spectral density of -135 dBc/Hz is measured at 10 kHz offset from the carrier
Roubadia, Régis. "Conception de PLL à large bande passante et faible bruit de phase en technologie CMOS submicronique." Montpellier 2, 2007. http://www.theses.fr/2007MON20116.
Full textBoyavalle, Christophe. "Conception de récepteurs à faible bruit dans le domaine millimétrique en étudiant le bruit électrique dans les circuits non linéaires micro-ondes." Lille 1, 1997. http://www.theses.fr/1997LIL10216.
Full textBary, Laurent. "Caractérisation et modélisation du bruit basse fréquence de composants bipolaires micro-ondes : application à la conception d'oscillateurs à faible bruit de phase." Toulouse 3, 2001. http://www.theses.fr/2001TOU30204.
Full textNtagwirumugara, Etienne. "Co-intégration d'un filtre à ondes de surface avec un amplificateur d'entrée de faible bruit sur Si pour téléphone mobile." Valenciennes, 2007. http://ged.univ-valenciennes.fr/nuxeo/site/esupversions/4bd689b6-f6f2-4c58-8579-cd72bb25debf.
Full textThe study presented in this thesis relates to the analysis of a ladder-type filter co-integrated with a CMOS low noise amplifier (LNA) in the frequency band around 945-MHz. The theoretical study of the filter was carried out by using initially the coupling of modes model (COM) but also by applying equivalent circuit RLC of the resonator. The filter was developed on a structure with three layers of a ZnO film and aluminium (Al) electrodes on a silicon (Si) substrate with a Ti for metallization. This filter is composed of six resonators on the same port. The theoretical and experimental results were analyzed. An amplifier low noise entirely co-integrated with this filter intended for the use in a global system mobile(GSM) receiver, was implemented in a standard process of 0,35µm in technology CMOS. Design procedure and simulation results of filter-LNA unit by using an amplifier with four types of inductances of different quality factors (Q) were presented. Our study enables us to affirm that today; we can make the co-integration of the two components (filter with LNA). Finally, we present the layout of the filter-LNA unit
Tapfuh, Mouafo Joseph. "Etude d'amplificateurs faible niveau à haute linéarité en technologies intégrées HEMT AsGa pour applications spatiales." Limoges, 2008. https://aurore.unilim.fr/theses/nxfile/default/82c545c3-edac-49d5-a891-3f4fbc7ceba0/blobholder:0/2008LIMO4056.pdf.
Full textThis work presents an analysis of low-level and high linearity amplifier circuits, and proposes solutions in order to optimise the ratio between high linearity and low consumption (IP3/Pdc). Different methods to evaluate linearity in amplifier has been studied. Mathematical analysis with Volterra series based on equivalent circuit of HEMT transistor allows us to highlight different parameters influencing linearity in low amplifier, in particular, bias point and load impedances. Hence, linearity optimisation does not involve optimisation of output power at 1 dB gain compression, as for high power amplifier, but optimisation of load of transistor for the last stage, using data from 2 tones load-pull measurement, in order to maximise the C/I3 ratio for a given output power. This approach allow us to bypass the lack of reliable non-linear model of transistor for an accurate IM3 prediction, and help to optimise the linearity using a simple, fast and robust linear simulation
Rhouni, Amine. "Étude de fonctions électroniques en technologie ASIC pour instruments dédiés à l’étude des plasmas spatiaux." Paris 6, 2012. http://www.theses.fr/2012PA066593.
Full textThe development of instruments to be embedded on board satellites and space probes allows to study, in situ, the earth and sun relationships and more generally the solar wind and planetary ionized environments. The study of these phenomena requires a combination of instruments to characterize both waves and particles. We are interested in the integration, in a standard technology CMOS 0. 35 μm, of space instruments electronic, especially the analogue amplification chain of induction magnetometers and the amplification / discrimination chain of particle detectors. Important work on amplification structures was carried out in order to significantly reduce consumption and increase the sensitivity of the processing electronic chain for the particle detector. Thus, the feasibility of an integrated multichannel electronic for the particle analyser using a hemispherical electrostatic optical and containing up to 256 pixels, has been proven. Reducing the low frequency noise level in circuits based on MOS devices has always been a tedious task, since this type of components is the basis, not intended for such a range frequency. It was therefore necessary to design original amplification structures by the not usual size of their input transistors. This solution has significantly reduced the input equivalent noise of magnetometers amplification electronic. The advantage of using CMOS technology is the low current noise, the low power consumption and the overcrowding problem resolving. Obtained results in validation and radiation tests are very satisfactory. They can open the way for a possible integrated electronic in space instrumentation
Belquin, Jean-Maxence. "Développement de bancs de mesures et de modèles de bruit de HEMT pour la conception de circuits "faible bruit" en gamme d'ondes millimétriques." Lille 1, 1997. http://www.theses.fr/1997LIL10035.
Full textCerasani, Umberto. "Modélisation et optimisation d'un émetteur-récepteur faible bruit pour implants cochléaires." Thesis, Nice, 2014. http://www.theses.fr/2014NICE4093/document.
Full textCochlear implants are used by severely deaf people for partial hearing sensation. Behavioral modeling of the external part of the cochlear implant was first performed using the software Matlab. Then the propagation channel was modeled using electrical analogy of the biological tissues. Noise extraction of the propagation channel was performed in order to obtain the specifications for the RF receiver. Two types of diverse modulations are performed in the transmitter each one requiring an oscillator. The theoretical study and the creation of a new model allowing phase noise estimation is also proposed in this document. Jitter estimation from phase noise was performed and significantly impacted the overall chain transmission, suggesting oscillators blocks optimization. The accurate heterogeneous modeling of the various part of the internal ear leading to auditory nerve excitation was developed. Then a new mechanical equivalent of the organ of Corti and stereocilia displacement was developed and confirmed by physical experiments. The synapse between the hair cells and nerve fibers was mathematically modeled, in order to obtain the electrical stimulus of the auditory nerve associated with a random sound stimulus. Furthermore a new analog model of the nerve fiber information propagation was realized in order to obtain a realistic electrical analogy with nerve fiber depolarization propagation. Based on impedance spectroscopy biological tissue characterization, we proposed a new electrical analogy of the system composed of the electrodes inserted inside the cochlea
Kerherve, Eric. "Conception et réalisation d'amplificateurs microondes faible bruit à éléments distribués par la méthode simplifiée des fréquences réelles." Bordeaux 1, 1994. http://www.theses.fr/1994BOR10611.
Full textPalan, Bohuslav. "Conception de microcapteurs pH-ISFET faible bruit et d'inductances intégrées suspendues à fort facteur de qualité Q." Grenoble INPG, 2002. http://www.theses.fr/2002INPG0023.
Full textAmrouche, Faïza. "Analyse, conception et réalisation de mélangeurs micro-ondes faible bruit à transistor à effet de champ HEMT." Poitiers, 2004. http://www.theses.fr/2004POIT2350.
Full textIn the communication systems, the mixer is an essential element as well with the level of the emission (Up-converter), as on the level of the reception (Down-converter). The principal objective of this work is to reduce the noise figure in the microwaves mixers. For that, an analytic expression is developed to predict the noise performance of the gate mixers. In second approach, a non-linear model of noise was established and implanted in the harmonic balance simulator. The simulation method is also proposed. The measured non-linear elements of equivalent model are interpolated to provide a description of the HEMT's nonlinearitie. Two HEMT gate mixers for X band applications have been designed. The configuration of the first one enables a high conversion gain. The second one is designed to reduce the noise figure. It is shown that the noise figure is reduced of 4 dB in the low noise mixer circuit. Good agreement is obtained between simulated, calculated and experimental noise figure