Relevant bibliographies by topics / Conical antennas

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  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Conical antennas'

Author: Grafiati
Published: 4 June 2021
Last updated: 6 February 2022

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Journal articles on the topic "Conical antennas"

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Wang, Wei, Xue Tian Wang, Ying Li, and Song Song. "Design of an Ultra-Wideband Four Arms Sinuous Antenna." Advanced Materials Research 981 (July 2014): 469–73. http://dx.doi.org/10.4028/www.scientific.net/amr.981.469.

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Due to the advantages of ultra-wideband, single caliber, symmetric pattern, full polarization, the sinuous antennas have gradually displaced the traditional spiral antennas in the Missile guider, reflector feed, wideband direction finding system. Based on the traditional planar sinuous antennas, this paper designed a novel 2-22 GHz 3D sinuous antenna in the conical form. Results show that the designed antenna showed high performance within 2-22 GHZ frequency band.
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Huang, W. N., Y. J. Cheng, and H. Deng. "Substrate Integrated Waveguide Leaky-Wave Antenna Conforming to Conical Shape Surface." International Journal of Antennas and Propagation 2015 (2015): 1–7. http://dx.doi.org/10.1155/2015/359670.

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A conical conformal leaky-wave antenna based on substrate integrated waveguide (SIW) technology is proposed and demonstrated in this paper. This antenna conforms to a conical shape surface with the angle of 40°. It has a narrow beam that scans from 80° to 97° with varying frequency (34 GHz~37 GHz). Both conformal and nonconformal antennas are fabricated through the standard PCB process. Their performances are compared within the desired frequency.
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N, Likith, Gayathri K M, Thusshara S, Maria Sanjeetha, and Thangadurai N. "Design & Analysis of S-Band Right Hand Circularly Polarized Conical Horn Antenna for NavIC Receiver." International Journal of Engineering & Technology 7, no. 3.12 (July 20, 2018): 512. http://dx.doi.org/10.14419/ijet.v7i3.12.16169.

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In satellite communication systems the horn antennas are being used widely due to its robustness and capable to operate at frequencies which are very high. Here, the right hand circular polarized conical horn antenna is designed for S-band NavIC receiver. The waveguides and conical horn antenna dimensions are designed by using standard formulas and after that they are given to a simulation tool for the S band frequency. The performance parameters like return loss, radiation pattern, gain and directivity are considered for further analysis. In the circular waveguide from the TE11 mode conical horn antenna is to be designed into high gain and a good VSWR.
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Hirose, Kazuhide, Kazuhiko Hata, and Hisamatsu Nakano. "Modified Crossed-Wire Antennas Radiating a Circularly Polarized Conical Beam." International Journal of Antennas and Propagation 2020 (February 24, 2020): 1–7. http://dx.doi.org/10.1155/2020/2759312.

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Two types of modified crossed-wire antennas are investigated to enhance a circularly polarized (CP) wave bandwidth. The wire length of each antenna is increased twice as long as that of the original antenna. First, a bent-type antenna is analyzed using the method of moments. It is found that the CP wave bandwidth for a 3 dB axial ratio criterion is twice as wide as that of the original antenna. Next, a spiral-type antenna is analyzed. It is revealed that the antenna shows a CP wave bandwidth of 28%, which is wider than that of the original antenna by a factor of 3.5. The analysis results are validated by experimental work.
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Kawakami, Haruo, Gentei Sato, Takeshi Watanabe, and Ryoji Wakabayashi. "Circularly polarized conical beam antennas." Electronics and Communications in Japan (Part I: Communications) 78, no. 5 (May 1995): 66–80. http://dx.doi.org/10.1002/ecja.4410780507.

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Kong, Rong, Dong Lin Su, and Qiu Yuan Lv. "Analysis for Radiation Characteristics of Horn Antenna for Out of Band." Advanced Materials Research 383-390 (November 2011): 2935–40. http://dx.doi.org/10.4028/www.scientific.net/amr.383-390.2935.

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The idea of this paper roots in the electromagnetic compatibility design of the whole aircraft system, in which out of band characteristics of airborne antennas are of equal importance as their characteristics in band. The definition of antenna characteristics for out of band is interpreted. Horn antennas are the main research objects in this paper. In order to make characteristic of this type antenna for out of band have a general, this paper is special to select pyramidal horn antenna and conical horn antenna. The characterization framework of horn antennas radiation characteristics for out of band is established, and the theoretical expressions of their radiation characteristics for out of band are given. In ensuring better antenna characteristics in band, four horn antennas that are different types of sizes, different frequency band width are simulated and analyzed by using electromagnetic simulation software HFSS. It is meaningful to analyze radiation characteristics and summarize different features for various performance parameters of these horn antennas for in band and out of band. Focus on characteristics of the changes for the maximum gain, 3dB beam width parameters of horn antennas within the working frequency band and out of working band. The results show that: radiation characteristics of horn antenna are the law within the working frequency band and out of working band.
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Givati, O., and A. P. C. Fourie. "Analysis of skeletal wire conical antennas." IEEE Transactions on Antennas and Propagation 44, no. 6 (June 1996): 844–58. http://dx.doi.org/10.1109/8.509888.

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Gentili, G. B., M. Cerretelli, and L. Cecchi. "COATED CONICAL ANTENNAS FOR AUTOMOTIVE APPLICATION." Journal of Electromagnetic Waves and Applications 18, no. 1 (January 2004): 85–97. http://dx.doi.org/10.1163/156939304322749689.

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Hertel, Thorsten W., and Glenn S. Smith. "Analysis of conical log-periodic antennas." Microwave and Optical Technology Letters 36, no. 1 (December 13, 2002): 28–32. http://dx.doi.org/10.1002/mop.10661.

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Cong, Lin, Lixin Xu, Jianhua Li, Ting Wang, and Qi Han. "The conical conformal MEMS quasi-end-fire array antenna." Modern Physics Letters B 31, no. 07 (March 10, 2017): 1750115. http://dx.doi.org/10.1142/s0217984917501159.

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The microelectromechanical system (MEMS) quasi-end-fire array antenna based on a liquid crystal polymer (LCP) substrate is designed and fabricated in this paper. The maximum radiation direction of the antenna tends to the cone axis forming an angle less than 90[Formula: see text], which satisfies the proximity detection system applied at the forward target detection. Furthermore, the proposed antenna is fed at the ended side in order to save internal space. Moreover, the proposed antenna takes small covering area of the proximity detection system. The proposed antenna is fabricated by using the flexible MEMS process, and the measurement results agree well with the simulation results. This is the first time that a conical conformal array antenna is fabricated by the flexible MEMS process to realize the quasi-end-fire radiation. A pair of conformal MEMS array antennas resonates at 14.2 GHz with its mainlobes tending to the cone axis forming a 30[Formula: see text] angle and a 31[Formula: see text] angle separately, and the gains achieved are 1.82 dB in two directions, respectively. The proposed antenna meets the performance requirements for the proximity detection system which has vast application prospects.
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Dissertations / Theses on the topic "Conical antennas"

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SILVA, DENISE FREITAS. "APPLICATION METHOD OF MOMENTS FOR THE ANALYSIS OF CONICAL ANTENNAS." PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO, 1999. http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=7300@1.

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COORDENAÇÃO DE APERFEIÇOAMENTO DO PESSOAL DE ENSINO SUPERIOR
Neste estudo faz-se uma análise do desempenho de antenas cônicas compactas para operar em largas bandas de freqüência. Esta análise será feita observando o comportamento da impedância da antena. Serão, primeiramente, consideradas as estruturas convencionais formadas por cones e cones sobrepostos próximos a um plano condutor. Posteriormente, será considerada uma estrutura cônica onde o arredondamento das bordas resulta em um comportamento mais uniforme para a impedância de entrada com variações da freqüência, conferindo um aumento na banda para esta configuração.
The discone antenna is well known as an easy to build multioctave broadband antenna with a omnidirectional radiation pattern in the H-plane, It comprises a plane conductive disc element spaced close to and axially aligned with a conductive cone element. For applications in the UHF and microwave ranges, high performance antennas have been designed to operate from 0.5 to 5 GHz with a VSWR of about 3.5:1 or less. If the length is finite, the impedance still strongly dependent on apex angle as long as the cone is longer than about quarter of wavelength and the apex angle is relatively larger. A problem that is experienced with these antenna designs is the relatively large size required to operate at the low frequencies. In applications where utilization of this antenna. In this work, the analysis and design of these antenna is obtained by employing a rigorous formulation of the electromagnetic scattering problem. As a design tool, we employ Method of Moments for the analysis of rotationally symmetric structures excited by TEM mode. To properly account the variations in driven-point impedance with frequency, the coaxial waveguide used to feed the antenna is also included in the analysis. The excitation is simulated by a distribution of equivalent electric and magnetic currents placed inside the coaxial cable, over a cross-section plane. These currents are defined such that only excite the mode TEM towards the cable-antenna junction. These numerical tool is employed in the shaping the metallic surfaces involved in the discone-type antennas in order to obtain more compact structures. Simple solutions can be easily obtained making the center fed cone and the disc element with radially outer edge portions rolled backwardly and away from each other to form donut-shaped configurations. The ruled edges not only reduce the diameter of the antenna but also permit the current to flow around them smoothly and without reflections that degrade the VSWR at low end of the frequency band.
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Hertel, Thorsten Walter. "Analysis and design of conical spiral antennas in free space and over ground." Diss., Georgia Institute of Technology, 2001. http://hdl.handle.net/1853/15018.

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Liu, Xueli. "Origami Antennas for Novel Reconfigurable Communication Systems." FIU Digital Commons, 2018. https://digitalcommons.fiu.edu/etd/3644.

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Antennas play a crucial role in communication systems since they are the transmitting/receiving elements that transition information from guided transmission to open-space propagation. Antennas are used in many different applications such as aerospace communications, mobile phones, TVs and radios. Since the dimensions of antennas are usually physically proportional to the wavelength at their operating frequencies, it is important to develop large antennas and arrays that can be stowed compactly and easily deployed. Also, it is important to minimize the number of antennas on a platform by developing multifunctional antennas. The first aim of this research is to develop new deployable, collapsible, light-weight and robust reconfigurable antennas based on origami principles. All designs will be validated through simulations and measurements. Paper as well as other substrates, such as, Kapton and fabric, will be used to develop our origami antennas. The second aim of this research is to derive integrated analytical and simulation models for designing optimal origami antennas for various applications, such as, satellite or ground communications. This dissertation presents research on origami antennas for novel reconfigurable communication systems. New designs of reconfigurable monofilar, bifilar and quadrifilar antennas based on origami cylinders are developed and validated. Novel fabrication methods of origami antennas are presented with detailed geometrical analysis. Furthermore, multi-radii origami antennas are proposed, analyzed, fabricated and validated and they exhibit improved circular polarization performance and wide bandwidths. An actuation mechanism is designed for these antennas. For the first time, a low-cost and lightweight reconfigurable origami antenna with a reflector is developed here. In addition, an array is developed using this antenna as its element. Finally, a kresling conical spiral antenna and a spherical helical antenna are designed with mode reconfigurabilities.
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Khalil, Khaled. "Investigation, design and implementation of circular-polarised antennas for satellite mobile handset and wireless communications : simulation and measurement of microstrip patch and wire antennas for handheld satellite mobile handsets and investigations of polarization polarity, specific absorption rate, and antenna design optimization using genetic algorithms." Thesis, University of Bradford, 2009. http://hdl.handle.net/10454/4319.

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The objectives of this research work are to investigate, design and implement circularly-polarized antennas to be used for handheld satellite mobile communication and wireless sensor networks. Several antennas such as Quadrifilar Spiral Antennas (QSAs), two arm Square Spiral and stripline or coaxially-fed microstrip patch antennas are developed and tested. These antennas are investigated and discussed to operate at L band (1.61-1.6214GHz) and ISM band (2.4835-2.5GHz) A substantial size reduction was achieved compared to conventional designs by introducing special modifications to the antenna geometries. Most of the antennas are designed to produce circularly-polarized broadside-beam except for wireless sensor network application a circularly-polarized conical-beam is considered. The polarization purity and Specific Absorption Rate (SAR) of two dual-band antennas for satellite-mobile handsets next to the human head are investigated and discussed, using a hybrid computational method. A small distance between the head and the handset is chosen to highlight the effects of the relatively high-radiated power proposed from this particular antenna. A Genetic Algorithm in cooperation with an electromagnetic simulator has been introduced to provide fast, accurate and reliable solutions for antenna design structures. Circularly-polarized quadrifilar helical antenna handset and two air-dielectric microstrip antennas were studied. The capabilities of GA are shown as an efficient optimisation tool for selecting globally optimal parameters to be used in simulations with an electromagnetic antenna design code, seeking convergence to designated specifications. The results in terms of the antenna size and radiation performance are addressed, and compared to measurements and previously published data.
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Cheng, Po-Kai. "NeXtRAD antenna design: X-Band dual polarised conical horn antenna." Master's thesis, University of Cape Town, 2016. http://hdl.handle.net/11427/20511.

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The purpose of the dissertation is to investigate a design and implementation of a dual polarised X-band antenna. The desired specifications include a centre frequency of 8.5 GHzand a 10_ azimuth-half power beam width in both vertical and horizontal polarisations. Other requirements include peak power handling of 400 W over a 50 MHz instantaneous bandwidth and the facility to be mounted on a standard tripod. The dissertation begins by introducing NeXtRAD, a radar project developed jointly by UCL and UCT, outlines the objective of the study and lists all the requirements to be achieved. After considering several types of antenna, horn antenna has been the most practical when trying to meet project requirements. Two of the horn antennas examined here have been the square and conical horn antennas using square and circular waveguides respectively. Each of these waveguides support dual polarisation as they provide a symmetrical structure in two orthogonal planes of polarisation. The square waveguide is flared into a square horn whereas the circular waveguide is flared into a conical horn to increase the gain and reduce the half-power beamwidth to the required angle.
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Douvalis, Vassileios. "Monolithic millimetre-submillimetre wave active conical horn antenna arrays." Thesis, Queen Mary, University of London, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.414468.

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Mulenga, Charity Basaza. "The application of periodic structures to conical antenna design." Thesis, Loughborough University, 2009. https://dspace.lboro.ac.uk/2134/33631.

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The primary objective of this research has been to investigate whether periodic structures can be applied to conical antennas for the purpose of improving their performance. This has been achieved through numerical modelling, theoretical investigation and physical measurements. In this study, two dimensional rotationally symmetric periodic structures were considered. This work determined that applying modifications to the cone antenna element significantly reduced the antennas bandwidth through the creation of strong anti-resonances. However, introducing frequency dependent impedance transformations to the end-termination leads to improvements in the far field radiation patterns without significant detriment to the input characteristics. In addition, periodic structures were applied to the ground plane to reduce backward radiation through the suppression of surface wave propagation. Results from this investigation have been determined and the implications assessed. In addition a novel periodic structure designed using polar curves and mapping functions capable of operating at low frequencies and that could be applied to conformal surfaces has been designed and analysed. The results of this research demonstrate that periodic structures can improve the radiation characteristics of conical antennas without compromising the impedance bandwidth.
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Clauzier, Sébastien. "Conception et réalisation d'antennes intégrables en mâture pour les plateformes navales : applications aux communications V/UHF et à un radar de navigation à balayage électronique en bande X." Thesis, Rennes 1, 2013. http://www.theses.fr/2013REN1S067.

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En raison des conflits maritimes qui s'étendent (piraterie, embargo,...), les besoins de communiquer et de détecter les menaces sont de plus en plus importants. Ceci conduit irrémédiablement à l'augmentation du nombre d'aériens à bord des plateformes navales. Afin de gérer au mieux cet accroissement du nombre d'antennes, qui conduit à des effets de couplage et à une augmentation de la signature radar du navire, les principales entreprises du secteur ont mis en place des structures de mâts intégrés. C'est dans un contexte d'amélioration de leur mâture intégrée compacte (Cmast™) que les Constructions Mécaniques de Normandie (CMN) de Cherbourg en collaboration avec l'IETR de Rennes et INEO Défense ont proposé cette thèse. Ces travaux ont pour objectifs le développement de deux systèmes antennaires intégrables au sein de cette mâture intégrée compacte : une antenne de communication en bande V/UHF et une antenne de radar de navigation à balayage électronique en bande X. Une première étude a permis le développement d'une antenne conique large bande (225-400MHz) dont les paramètres géométriques ont été optimisés pour assurer une communication entre les navires et des aéronefs. Un prototype de cette antenne a été réalisé et a permis une validation expérimentale de ses performances. Une seconde étude a permis le développement d'une antenne d'un radar de navigation à balayage électronique en bande X. Cette antenne est basée sur une technologie transmit-array comprenant une source illuminante et un réseau permettant la formation du diagramme. Un effort particulier a été porté sur la source illuminante qui doit éclairer, à des distances très courtes (<550mm), un réseau qui présente des dimensions particulières (1530mmx100mm). Plusieurs sources utilisant un principe de focalisation en zone champ proche ont été développées et validées expérimentalement. Enfin deux architectures d'antennes transmit-array ont été étudiées, utilisant respectivement une technologie imprimée et une technologie en guide. Le fonctionnement de l'antenne complète (source illuminante + réseau transmit-array) a été étudié théoriquement
The need to communicate and detect potential enemies increases with the extension of maritime conflicts. This need impacts directly the number of antennas on naval platforms. However, this increase of aerials leads to several damaging effects: like coupling or high radar signature. To limit this effect, some companies have developed integrated mast design. This structure limits the coupling effect between aerials by a subdivision of the mast and provides an omnidirectional coverage for all antennas inserted inside the mast. The objective of the thesis is to design two antenna systems for the compact integrated mast (CmastTM) developed by the Constructions Mécanique de Normandie (CMN): a communication antenna in the V/UHF band and an electronically scanning antenna for a maritime navigation radar in X-band. For the communication in the V/UHF band, a broadband conical antenna has been developed (225-400MHz). This antenna provides an optimized radiation pattern to insure the communications between the ship and the aircrafts. An experimental validation has been done with a prototype. In the second study, we have developed an electronically scanning antenna for a navigation radar. This antenna is based on a transmit-array technology including an illuminating feed and an antenna which generates the appropriate radiation pattern. A large part of the study has been done on the feed, which illuminates an array with specific dimensions (1530mmx100mm). Three different near-field focusing feeds have been developed and some of them have been validated experimentally. Then, two architectures of transmit-array antennas have been studied, using two different technologies: printed technology and a mixed technology with waveguide and horn
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Magnusson, Patrick. "Antenna for GNSS Reception in GEO-Orbit." Thesis, KTH, Rymd- och plasmafysik, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-149283.

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There are a number of global navigation satellite systems (GNSS), in use or planed, which are used for navigation on earth but also for autonomous navigation of satellites in low earth orbit (LEO). It would be desirable to also have autonomous navigation in geosynchronous earth orbit (GEO) to reduce costs and make it possible to get higher accuracy on the position of the satellite. One part of the navigation system is the GNSS antenna which is examined in this master thesis. The specifications of the antenna were first decided and then three antenna alternatives were investigated in greater detail: a monofilar helix antenna, a three element circular array antenna and a twelve element circular array antenna. The result was that they would all work as a GNSS antenna in GEO but none could be judged to be the best under all circumstances. The size requirement for the mission and the used GNSS receiver would primarily decide which fits the mission best.
Det finns ett antal världstäckande navigeringssystem (GNSS), i användning och planerade, som används för navigation på jorden fast också för autonom navigation för satelliter i låg bana runt jorden. Det skulle också vara önskvärt att använda autonom navigation för satelliter i geostationär omloppsbana (GEO) för att reducera kostnaden och få högre positions noggrannhet. En del av navigationssystemet är GNSS antennen vilken är undersökt i detta examensarbete. Specifikationerna för antennen bestämdes först och sedan undersöktes tre olika antennalternativ i detalj: en monofilär helixantenn, en tre elements cirkulär gruppantenn och en tolv elements cirkulär gruppantenn. Resultatet var att alla alternativen skulle fungera som en GNSS antenn i GEO-bana fast inget av alternativen är bäst i alla förhållanden. Storlekskraven för uppdraget och vilken GNSS mottagare som skall användas påverkar vilket av alternativen som passar uppdraget bäst.
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Descardeci, Jose Ricardo. "Antena de microfita sobre substrato conico." [s.n.], 1991. http://repositorio.unicamp.br/jspui/handle/REPOSIP/261183.

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Orientador : Attilio Jose Giarola
Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Eletrica
Made available in DSpace on 2018-07-14T01:51:52Z (GMT). No. of bitstreams: 1 Descardeci_JoseRicardo_M.pdf: 3868112 bytes, checksum: 2184fb222cc010a66c9430f3980954b0 (MD5) Previous issue date: 1991
Resumo: É apresentada neste trabalho a análise teórica de uma antena de microfita sobre um substrato cônico. A análise utiliza o modelo de cavidades com paredes laterais magnéticas na determinação da frequência de ressonância e impedância de a teoria das funções diádicas de Green, juntamente com as expressões assintóticas das funções esféricas de Hankel do segundo tipo, na obtenção dos campos distantes radiados pela antena. São apresentados também exemplos de antenas, operando no modo fundamental TM 01 e obtidos resultados para a frequencia de ressonância , impedância de entrada e diagrama de radiação do campo radiado distante. 0:1e resultados para a freqUência de ressonância, impedância de entrada e diagrama de radiação do campo radiado di stante. entrada da antena, e, juntamente com as esféricas de Hank el dist.antes radiados
Abstract: A theoretical analysis of a microstrip antenna on a conical substrate is presented. The cavity model with magnetic side walls is used for the calculation of the antenna resonant frequency and input impedance and the dyadic Green's functions formulation, in conjunction with asymptotic expressions of spher i cal Hank el functions of second type, are used for the calculation of the radiated fields in the far field region of the antenna. Some antennas, operating in the TM 01 mode were chosen as examples and numerical results for the resonant frequency, input impedance and radiation pattern were obtained.
Mestrado
Mestre em Engenharia Elétrica
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Books on the topic "Conical antennas"

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24 GHz measurements of 2.2 lambda conical horn antennas illuminating a conducting sheet. Hampton, Va: National Aeronautics and Space Administration, Langley Research Center, 1993.

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E, Cross A., and Langley Research Center, eds. 24 GHz measurements of 2.2 lambda conical horn antennas illuminating a conducting sheet. Hampton, Va: National Aeronautics and Space Administration, Langley Research Center, 1993.

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E, Cross A., and Langley Research Center, eds. 24 GHz measurements of 2.2 lambda conical horn antennas illuminating a conducting sheet. Hampton, Va: National Aeronautics and Space Administration, Langley Research Center, 1993.

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E, Cross A., and Langley Research Center, eds. 24 GHz measurements of 2.2 lambda conical horn antennas illuminating a conducting sheet. Hampton, Va: National Aeronautics and Space Administration, Langley Research Center, 1993.

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Book chapters on the topic "Conical antennas"

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Hu, Huilin, Yunhua Tan, Bocheng Zhu, and Lezhu Zhou. "Radiation Analysis of Dielectric Conical Conformal Log-Spiral Antennas." In Lecture Notes in Electrical Engineering, 981–86. Berlin, Heidelberg: Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-21747-0_127.

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Geng, Junping. "A Circular Truncated Cone Slot Antenna with Circular Polarized Conical Beam." In Omnidirectional Slots Antenna, 113–24. Singapore: Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-9089-4_6.

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Lu, Mingyu, Jonathan W. Bredow, Sungyong Jung, and Saibun Tjuatja. "A Quasi-Planar Wide Band Conical Antenna." In Ultra-Wideband Short-Pulse Electromagnetics 8, 25–32. New York, NY: Springer New York, 2007. http://dx.doi.org/10.1007/978-0-387-73046-2_4.

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Qu, Xiao-Yun, Wei-Hua Zong, Zhi-Qun Yang, and Jian-Ming Mu. "The Design of Shaped-Beam Bifilar Helix Antenna with Conical Pattern." In Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering, 287–92. Berlin, Heidelberg: Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-642-29157-9_27.

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Siddiqui, Rehan Ahmed, Bishal Mishra, and Malay Ranjan Tripathy. "Conical Conformal Antenna Array Using SIW Backed Feeding Technique for X Band Applications." In Asset Analytics, 421–29. Singapore: Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-3643-4_34.

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Adachi, Saburo. "Conical Antennas." In Encyclopedia of RF and Microwave Engineering. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2005. http://dx.doi.org/10.1002/0471654507.eme057.

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Zhang, Zhiya, Masood Ur-Rehman, Xiaodong Yang, Erchin Serpedin, Aifeng Ren, Shaoli Zuo, Atiqur Rahman, and Qammer Hussain Abbasi. "Broadband Antennas." In Wideband, Multiband, and Smart Reconfigurable Antennas for Modern Wireless Communications, 27–71. IGI Global, 2016. http://dx.doi.org/10.4018/978-1-4666-8645-8.ch002.

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Apart from the sleeve monopole, this chapter discusses other broadband antennas as well, and the performance evaluation in terms of various measured and simulated parameters is also illustrated. This chapter will help antenna engineers get a better understanding of the antennas discussed and make a comparison with other broadband antennas. The broadband antennas that have been discussed in this chapter include: Low-profile sleeve monopole antenna, Dual-sleeve monopole antenna, Disc-conical sleeve monopole antenna, Wideband with dumbbell-shaped open sleeve antenna, Wideband unidirectional patch antenna with G-shaped strip feed, Wideband folded bowtie antenna with G-shaped strip feed and tuning stubs, Wideband bowtie antenna with inverted L-shaped coupling feed and tuning stubs.
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Kobayashi, Hirokazu. "Horn Antenna." In Advances in Environmental Engineering and Green Technologies, 144–77. IGI Global, 2020. http://dx.doi.org/10.4018/978-1-7998-2381-0.ch008.

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One of the simple and most widely used microwave antennas is the horn as a feed element for large radio telescopes, satellite tracking, and communication reflector, which are found installed throughout the world. In addition to its utility as a feed for reflectors and lenses, it is a common element of phased arrays and serves as a universal standard for calibration and gain measurement of other high gain antennas. Its widespread applicability stems from its simplicity in construction, ease of excitation, large gain, wide-band characteristics, and preferred overall performance. An electromagnetic horn can take many different forms, such as basic pyramidal, conical, corrugated, double-ridged, and dual polarized horns, as well as horns with lens and so on. The horn is nothing more than a hollow pipe of different cross-sections, which has been tapered to a larger opening aperture. This chapter explains the fundamentals of the pyramidal horn antenna in detail using aperture field method. Numerical and measured examples, are also shown.
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S., George. "Simulated Performance of Conical Antennas Using Matlab-Based Finite-Difference Time Domain (FDTD) Code." In Scientific and Engineering Applications Using MATLAB. InTech, 2011. http://dx.doi.org/10.5772/21482.

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Conference papers on the topic "Conical antennas"

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Yang, Fang, Peng Zhang, Chen Jiang Guo, and Jia Dong Xu. "Conical beam control of arbitrary conical spiral antennas." In 2006 7th International Symposium on Antennas, Propagation & EM Theory. IEEE, 2006. http://dx.doi.org/10.1109/isape.2006.353456.

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Vsetula, Petr, and Zbynek Raida. "Sierpinski conical monopole antennas." In 2010 15th Conference on Microwave Techniques (COMITE 2010). IEEE, 2010. http://dx.doi.org/10.1109/comite.2010.5481272.

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Saintsing, Christy D., Benjamin S. Cook, and Manos M. Tentzeris. "An Origami Inspired Reconfigurable Spiral Antenna." In ASME 2014 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/detc2014-35353.

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Modern day systems often require reconfigurability in the operating parameters of the transmit and receive antennas, such as the resonant frequency, radiation pattern, impedance, or polarization. In this work a novel approach to antenna reconfigurability is presented by integrating antennas with the ancient art of origami. The proposed antenna consists of an inkjet printed center-fed spiral antenna, which is designed to resonate at 1.0GHz and have a reconfigurable radiation pattern while maintaining the 1.0GHz resonance with little variation in input impedance. When flat, the antenna is a planar spiral exhibiting a bidirectional radiation pattern. By a telescoping action, the antenna can be reconfigured into a conical spiral with a directional pattern and higher gain, which gives the antenna a large front-to-back ratio. Construction of the antenna in this manner allows for a simple, lightweight, transportable antenna that can expand to specifications in the field.
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Sabino, Vanine, Daniel B. Ferreira, Odilon M. C. Pereira-Filho, and Luiz C. da Silva. "Input Impedance of Conical Microstrip Antennas." In 2019 International Conference on Electromagnetics in Advanced Applications (ICEAA). IEEE, 2019. http://dx.doi.org/10.1109/iceaa.2019.8879015.

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Fang, Yang, Guo Chen-Jiang, Xu Jia-Dong, Xie Chun-Jian, and Ding You-Jun. "Backfire/Endfire conical beam properties of conical spiral antennas with arbitrary configurations." In 2007 International Conference on Microwave and Millimeter Wave Technology. IEEE, 2007. http://dx.doi.org/10.1109/icmmt.2007.381302.

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Sabino, V., and O. M. C. Pereira-Filho. "Cavity-backed annular conical antenna." In 2017 11th European Conference on Antennas and Propagation (EUCAP). IEEE, 2017. http://dx.doi.org/10.23919/eucap.2017.7928780.

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Levin, Boris, Motti Haridim, and Stefan Chulski. "Transparent antenna with conical feed." In 2013 IEEE International Conference on Microwaves, Communications, Antennas and Electronic Systems (COMCAS). IEEE, 2013. http://dx.doi.org/10.1109/comcas.2013.6685244.

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Yu Yu Kyi, Li Jianying, and Gan Yeow Beng. "Study of Broadband Small Size Conical Antennas." In 2006 IEEE Antennas and Propagation Society International Symposium. IEEE, 2006. http://dx.doi.org/10.1109/aps.2006.1710977.

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Chen Chen, Fang Yang, Chenjiang Guo, and Jiadong Xu. "Simulation of Monifilar Archimedean conical spiral antennas." In 2008 International Conference On Microwave and Millimeter Wave Technology. IEEE, 2008. http://dx.doi.org/10.1109/icmmt.2008.4540598.

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Nie, Li Ying, Xian Qi Lin, Jin Zhang, Yi Hong Su, and Bao Wang. "A Composite Antenna Comprising Conical-Beam Slotted Cavity and Patch Antennas." In 2018 11th UK-Europe-China Workshop on Millimeter Waves and Terahertz Technologies (UCMMT). IEEE, 2018. http://dx.doi.org/10.1109/ucmmt45316.2018.9015674.

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Reports on the topic "Conical antennas"

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Farr, Everett G., and W. S. Bigelow. A Conical Slot Antenna and Related Antennas Suitable for Use with an Aircraft with Inflatable Wings. Fort Belvoir, VA: Defense Technical Information Center, February 2005. http://dx.doi.org/10.21236/ada434746.

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Reilly, Michael P., George H. Miley, David E. Kirtley, Justin Koo, Jr Hargus, and William A. Effects of Helicon Wave Propagation Based on a Conical Antenna Design: Part I (Preprint). Fort Belvoir, VA: Defense Technical Information Center, August 2007. http://dx.doi.org/10.21236/ada473488.

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