Academic literature on the topic 'N-path filter'

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Journal articles on the topic "N-path filter"

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Ikehara, Masaaki, and Shinichi Takahashi. "Uniform filter bank containing N-path digital filter." Electronics and Communications in Japan (Part III: Fundamental Electronic Science) 72, no. 5 (1989): 62–70. http://dx.doi.org/10.1002/ecjc.4430720508.

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Tian, F. Y., and X. N. Jiang. "Novel switched-capacitor pseudo-N-path filter." Electronics Letters 29, no. 11 (1993): 1018–19. http://dx.doi.org/10.1049/el:19930679.

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Mohammadpour, Amin, and Abdolreza Nabavi. "Design and Analysis of an N-Path Filter with High Out-of-Band Rejection Using Feed-Forward Technique." Journal of Circuits, Systems and Computers 28, no. 03 (2019): 1950053. http://dx.doi.org/10.1142/s0218126619500531.

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This paper presents an N-path filter with high out-of-band rejection using feed-forward technique. The structure utilizes two four-path filters, one as the main-path and the other as auxiliary-path, and two TIAs to increase the order of the filter from two to four. As a result of this, and due to using two series resistors in the main path, the out-of-band rejection is significantly improved. Analysis and simulations show that the series resistors can be chosen such that the NF degradation is below 2[Formula: see text]dB while the out-of-band rejection is improved by about 20[Formula: see text]dB. Therefore, the trade-off between the insertion-loss and out-of-band rejection is relaxed compared to conventional N-path filter. Also, it is shown that decreasing the size of baseband capacitors improves the NF of the filter. The effect of clock phase-noise on NF of the filter in the presence of strong out-of-band blocker is modeled and simulated.
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Lu, Zhijian, Jing Jin, Tingting Mo, and Jianjun Zhou. "Analysis of Input LCR Matched $N$ -Path Filter." IEEE Transactions on Circuits and Systems I: Regular Papers 63, no. 6 (2016): 795–805. http://dx.doi.org/10.1109/tcsi.2016.2538098.

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Thomas, Chris M., and Lawrence E. Larson. "Broadband Synthetic Transmission-Line N-Path Filter Design." IEEE Transactions on Microwave Theory and Techniques 63, no. 10 (2015): 3525–36. http://dx.doi.org/10.1109/tmtt.2015.2473161.

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Lee, Yoon-Ki, and Young-Sik Kim. "Design of a 900 MHz Wake-Up Receiver Using an N-Path Filter." Journal of Korean Institute of Electromagnetic Engineering and Science 30, no. 10 (2019): 814–22. http://dx.doi.org/10.5515/kjkiees.2019.30.10.814.

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Hasan, M. Naimul, Shahrokh Saeedi, Qun Jane Gu, Hjalti H. Sigmarsson, and Xiaoguang Liu. "Design Methodology of N-Path Filters With Adjustable Frequency, Bandwidth, and Filter Shape." IEEE Transactions on Microwave Theory and Techniques 66, no. 6 (2018): 2775–90. http://dx.doi.org/10.1109/tmtt.2018.2809573.

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Badiyari, Kamlesh, Nagarjuna Nallam, and Shouri Chatterjee. "An N-Path Band-Pass Filter With Parametric Gain-Boosting." IEEE Transactions on Circuits and Systems I: Regular Papers 66, no. 10 (2019): 3700–3712. http://dx.doi.org/10.1109/tcsi.2019.2918699.

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Thomas, Chris M., and Lawrence E. Larson. "A CMOS Broadband Distributed ${\rm N}$-Path Tunable Bandpass Filter." IEEE Microwave and Wireless Components Letters 24, no. 8 (2014): 542–44. http://dx.doi.org/10.1109/lmwc.2014.2321254.

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Betts, A. K., and J. T. Taylor. "Finite-gain-insensitive circulating-delay type pseudo-N-path filter." Electronics Letters 26, no. 23 (1990): 1941. http://dx.doi.org/10.1049/el:19901256.

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Dissertations / Theses on the topic "N-path filter"

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Fischer, Craig J. "Design of an Active Harmonic Rejection N-Path Filter for Highly Tunable RF Channel Selection." DigitalCommons@CalPoly, 2017. https://digitalcommons.calpoly.edu/theses/1930.

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As the number of wireless devices in the world increases, so does the demand for flexible radio receiver architectures capable of operating over a wide range of frequencies and communication protocols. The resonance-based channel-select filters used in traditional radio architectures have a fixed frequency response, making them poorly suited for such a receiver. The N-path filter is based on 1960s technology that has received renewed interest in recent years for its application as a linear high Q filter at radio frequencies. N-path filters use passive mixers to apply a frequency transformation to a baseband low-pass filter in order to achieve a high-Q band-pass response at high frequencies. The clock frequency determines the center frequency of the band-pass filter, which makes the filter highly tunable over a broad frequency range. Issues with harmonic transfer and poor attenuation limit the feasibility of using N-path filters in practice. The goal of this thesis is to design an integrated active N-path filter that improves upon the passive N-path filter’s poor harmonic rejection and limited outof- band attenuation. The integrated circuit (IC) is implemented using the CMRF8SF 130nm CMOS process. The design uses a multi-phase clock generation circuit to implement a harmonic rejection mixer in order to suppress the 3rd and 5th harmonic. The completed active N-path filter has a tuning range of 200MHz to 1GHz and the out-ofband attenuation exceeds 60dB throughout this range. The frequency response exhibits a 14.7dB gain at the center frequency and a -3dB bandwidth of 6.8MHz.
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Addou, Mohammed Adnan. "Filtrage actif intégré reconfigurable pour la téléphonie sans fil." Thesis, Limoges, 2016. http://www.theses.fr/2016LIMO0123/document.

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Ce travail de thèse porte sur la conception de dispositifs filtrants accordables, c'est-à-dire pouvant commuter leurs caractéristiques d'un standard à un autre afin de réduire l’encombrement des chaines émission/réception d’un dispositif multistandard. Les filtres les plus utilisés actuellement sont des filtres acoustiques. En effet, ces filtres sont difficilement intégrables dans une technologie silicium et ils restent parmi les dispositifs passifs les plus encombrants du front-end RF. De plus, ils ne permettent pas d’avoir de bonnes performances en pertes d’insertion, en sélectivité et en accordabilité fréquentielle. De ce fait, des solutions alternatives sont à l’origine de ces travaux de thèse. Nous avons considéré tout d’abord un filtre actif qui a la possibilité de régler sa fréquence de résonnance, d’une part à la fréquence de résonnance du système Wifi et d’autre part, à la fréquence de résonnance du système Zigbee. Ensuite, une autre solution a été proposée dans le dernier chapitre qui consiste à réaliser une structure active filtrante bi-bande intégrée. Cette solution a pour avantage de récolter simultanément les données des systèmes opérant dans les deux bandes de fréquences visés. Les résultats obtenus des circuits réalisés sont validés par des simulations et de mesures<br>This thesis concerns the design of tunable filter devices that can switch theirs characteristics from one standard to another in order to reduce the congestion of emission/reception chain of multi-standard systems. The most commonly used filters are acoustic filters. Indeed, these filters are difficult to be integrated in silicon technology and they remain one of the most bulky passive devices of the RF front-end. In addition, they don’t achieve good performance in insertion loss, frequency selectivity and tunability. Therefore, alternative solutions are at the origin of this thesis. An active filter is considered with the possibility of adjusting the resonance frequency: the resonant frequency of the Wifi system and the resonance frequency of the Zigbee system. Moreover, another solution is proposed in the last chapter, which consists to achieve a dual band structure of integrated active filter. This solution has the advantage to simultaneously collect data provided from the operating systems located in the two specified frequencies bands. Simulations and measurements validate the results of the realized circuits
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Salazar, Gutierrez Camilo Andrés. "Récepteurs de réveil très faible consommation utilisant des techniques de filtrage de type N-Path." Thesis, Lille 1, 2015. http://www.theses.fr/2015LIL10031/document.

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Le développement continu des systèmes dédiés à des réseaux de capteurs sans fils présent une grande motivation afin d’apporter “intelligence” à notre environnement. Plusieurs recherches ont été adressées au développement des méthodologies permettant de doter notre environnement avec des capteurs sans fils permettant un contrôle autonome des systèmes pour des applications médicales, environnementales, de sécurité et de structures intelligentes. Afin de garantir un déploiement dense des capteurs avec une longue durée de vie, chaque nœud doit être petit, pas cher et très faible en consommation de puissance. Afin de garantir une faible consommation, ces réseaux des capteurs doivent être implémentés suivant des schémas de rendez-vous asynchrones basés sur des récepteurs de réveil (en anglais, Wake-Up Receivers – WuRx). Cette recherche de thèse porte sur le développement d’un récepteur de réveil compact et à faible cout, fournissant très faible niveaux de consommation de puissance, une forte sensitivité et une forte tolérance aux interférences. L’architecture proposée survient aux besoins des références de temps à haut facteur-Q en combinant un oscillateur local, référée à un résonateur à faible facteur-Q, et des filtres passifs à N-chemins à haut facteur-Q, distribués en plusieurs étages tout le long du chemin de réception. Implémenté en une technologie 65nm CMOS de STMicroelectronics, ce travail de thèse propose un WuRx à double bande IF, avec une architecture travaillant à 2.4GHz avec une consommation de puissance de 99μW, une sensitivité de -97dBm et une rejection d’interférence de -27dB à une fréquence offset de 5MHz<br>The continuous development of performant systems intended for Wireless Sensor Networks (WSN) sets an exciting motivation to bring “intelligence” to our environment. Multiple researches have been addressed to the development of advanced methodologies enabling the possibility of providing objects with individual wireless sensing devices. Set as sensor networks, these emerging WSN enables autonomous monitoring of diverse environments for applications such as medical care, environmental monitoring, system security and smart structures. To guaranty dense node deployment and long lifetime, each sensor node must be small, low-cost and low-power. In order to fulfill the WSN low-energy requirements, asynchronous rendez-vous schemes based on Wake-Up Receivers (WuRx) may be implemented. This thesis research focuses on the development of a compact and low-cost ultra-low power wake-up receiver providing high sensitivity and strong interference rejection. The proposed architecture overcomes the need of high-Q time-base references by combining a low-Q resonator-referred local oscillator and distributed multi-stage signal-path high-Q filtering obtained by means of integrated ULP electronic means. Based on a Dual-IF architecture, this WuRx takes creative advantage of the N-path passive-mixers (N-PPM) impedance frequency translation principle to enhance the sensitivity and provide strong interferer immunity. Implemented in a 65nm CMOS technology from STMicroelectronics, this thesis work pushes the state-of-the-art boundary, proposing a 2.4GHz On-Off Keying (OOK) dual-IF WuRx with -97dBm sensitivity and -27dB carrier-to-interferer ratio at 5MHz carrier frequency offset, while consuming 99μW
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Kuo, Yen-Ru, and 郭彥儒. "A Mutual Capacitance Touch Sensor with N-path IIR Filter for High Charger Noise Rejection." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/2xe7d4.

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碩士<br>國立交通大學<br>電子研究所<br>106<br>The target of this Thesis is to develop a high charger noise immunity analog front-end circuit for touch sensing, which can be applied in the consumer electronics products. Its transmitter employs parallel driving by code-division sensing method. It senses the projected capacitive change. In the receiver, it can be divided into two part. In front part, we use current conveyor to transform the information of capacitance to current signal, and do the adjustment for signal amplification and capacitance baseline removal. It also avoids to use large feedback capacitor to prevent from output saturation resulting in an increase of power, owing to the large parasitic capacitance in traditional charge amplifier. In back part, the narrow band bandpass filter using N-path and discrete time IIR filter suppresses the charger noise, using differential circuit to attenuate even harmonics. Different magnitude Gm cells can allow for rejection of incoming signals at 3rd and 5th harmonics. Reconstructed signal flows into operational amplifier with feedback capacitor and resistor and it transforms current to output voltage of analog front-end circuit. Besides, it filters out the out-of-band noise. The high charger noise immunity analog front-end circuit will be implemented in 180-nm CMOS technology. It includes the design of input code-division sensing method, current conveyor and high-order discrete-time switched capacitor bandpass filter. Circuit techniques will be explored to achieve the ultimate goals of high charger noise immunity, high sensitivity and low power.
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Fernandes, Miguel Duarte Madeira. "Wideband CMOS receiver." Master's thesis, 2014. http://hdl.handle.net/10362/13337.

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YANG, TUNG-AN, and 楊東安. "Analysis and design of switched-current N-path filters." Thesis, 1992. http://ndltd.ncl.edu.tw/handle/57506235392887856043.

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Book chapters on the topic "N-path filter"

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Lin, Zhicheng, Pui-In Mak, and Rui Paulo Martins. "Analysis and Modeling of a Gain-Boosted N-Path Switched-Capacitor Bandpass Filter." In Analog Circuits and Signal Processing. Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-21524-2_4.

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Klumperink, Eric A. M., Michiel C. M. Soer, Remko E. Struiksma, Frank E. van Vliet Nauta, and Bram Nauta. "Towards Low Power N-Path Filters for Flexible RF-Channel Selection." In Efficient Sensor Interfaces, Advanced Amplifiers and Low Power RF Systems. Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-21185-5_15.

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Di Gennaro, Giacomo. "Juvenile Delinquency between Probation and Criminal Careers." In Criminology and Post-mortem Studies - Analyzing Criminal Behaviour and Making Medical Decisions [Working Title]. IntechOpen, 2020. http://dx.doi.org/10.5772/intechopen.94339.

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The focus of the criminological research is on probation and diversion measures applied in metropolitan judicial districts where juvenile deviance and criminal careers are frequent. Presidential Decree 448/1988 measures application in Naples judicial discrict reflects the “juvenile probation “ in juvenile ligislation, the problems of the local and urban organized crime context and the lack of penal welfare. The sources of analysis are an experimental sample of minors holders of the probation measure from Juvenile Court’s files, three other control sample holding diversion or conviction, the examination of the recidivism rate and criminal relaspe. Both database of the General Criminal Records and the Department of Prison Administration were consulted to monitor further sub-objectives and measures the recidivism rates. The results of the research highlight the risk assessment linked to the path of deviance according to the performance of the child recovery activities implemented by the host and penal communities. Evaluations acquires even more importance if observed after the entry into force of the Law of 28 April 2014 no. 67 introducing in the criminal code and criminal procedure, both the suspension of the trial and the provisions on non-punishment for particular tenuity of the fact (Legislative Decree 16 March 2015 n. 28).
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Conference papers on the topic "N-path filter"

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Nallam, Nagarjuna. "Analysis of a Dual N-Path Filter." In 2020 IEEE International Symposium on Circuits and Systems (ISCAS). IEEE, 2020. http://dx.doi.org/10.1109/iscas45731.2020.9180644.

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Weiss, Roy, and Emanuel Cohen. "Low loss integrated N-path-filter-based circulator." In 2017 IEEE International Conference on Microwaves, Antennas, Communications and Electronic Systems (COMCAS). IEEE, 2017. http://dx.doi.org/10.1109/comcas.2017.8244817.

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Arijal, Muhammad, Khilda Afifah, and Nicodimus Retdian. "Direct Conversion Using N-Path Filter for ASK Demodulator." In 2018 International Symposium on Electronics and Smart Devices (ISESD). IEEE, 2018. http://dx.doi.org/10.1109/isesd.2018.8605441.

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Addou, M. Adnan, Ragheb Hijazi, Roberto Gomez-Garcia, Bruno Barelaud, Bernard Jarry, and Julien Lintignat. "Two-branch channelized N-path filter for reconfigurable receiver." In 2016 IEEE International Conference on Electronics, Circuits and Systems (ICECS). IEEE, 2016. http://dx.doi.org/10.1109/icecs.2016.7841244.

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Chunyang Zhai, Jeffrey Fredenburg, John Bell, and Michael P. Flynn. "An N-path filter enhanced low phase noise ring VCO." In 2014 IEEE Symposium on VLSI Circuits. IEEE, 2014. http://dx.doi.org/10.1109/vlsic.2014.6858448.

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Afifah, Khilda, Muhammad Arijal, Nicodimus Retdian, and Takeshi Shima. "Second-Order N-path Notch Filter for Hum Noise Suppression." In 2018 International Symposium on Electronics and Smart Devices (ISESD). IEEE, 2018. http://dx.doi.org/10.1109/isesd.2018.8605468.

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Konstantinovsky, Iliah, and Emanuel Cohen. "N-path filter model simulation and verification at high frequencies." In 2017 IEEE International Conference on Microwaves, Antennas, Communications and Electronic Systems (COMCAS). IEEE, 2017. http://dx.doi.org/10.1109/comcas.2017.8244811.

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Chatterjee, Shouri, Kamlesh Badiyari, and Nagarjuna Nallam. "An N-Path Band-Pass Filter with Parametric Gain-Boosting." In 2020 IEEE International Symposium on Circuits and Systems (ISCAS). IEEE, 2020. http://dx.doi.org/10.1109/iscas45731.2020.9181015.

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Afifah, Khilda, Muhammad Arijal, Nicodimus Retdian, and Takeshi Shima. "Experiment on Hum Noise Suppression using N-path Notch Filter." In 2018 International Symposium on Intelligent Signal Processing and Communication Systems (ISPACS). IEEE, 2018. http://dx.doi.org/10.1109/ispacs.2018.8923266.

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Hari, Sandeep, Cody J. Ellington, and Brian A. Floyd. "A 6-31 GHz Tunable Reflection-Mode N-Path Filter." In 2021 IEEE Radio Frequency Integrated Circuits Symposium (RFIC). IEEE, 2021. http://dx.doi.org/10.1109/rfic51843.2021.9490492.

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