Academic literature on the topic 'Resonant cavity antenna'

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Journal articles on the topic "Resonant cavity antenna"

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Lu, Guang, Fabao Yan, Kaiyuan Zhang, Yunpeng Zhao, Lei Zhang, Ziqian Shang, Chao Diao, and Xiachen Zhou. "A Dual-Band High-Gain Subwavelength Cavity Antenna with Artificial Magnetic Conductor Metamaterial Microstructures." Micromachines 13, no. 1 (December 30, 2021): 58. http://dx.doi.org/10.3390/mi13010058.

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This paper presents dual-band high-gain subwavelength cavity antennas with artificial magnetic conductor (AMC) metamaterial microstructures. We developed an AMC metamaterial plate that can be equivalent to mu-negative metamaterials (MNMs) at two frequencies using periodic microstructure unit cells. A cavity antenna was constructed using the dual-band AMC metamaterial plate as the covering layer and utilizing a feed patch antenna with slot loading as the radiation source. The antenna was fabricated with a printed circuit board (PCB) process and measured in an anechoic chamber. The |S11| of the antenna was −26.8 dB and −23.2 dB at 3.75 GHz and 5.66 GHz, respectively, and the realized gain was 15.2 dBi and 18.8 dBi at two resonant frequencies. The thickness of the cavity, a sub-wavelength thickness cavity, was 15 mm, less than one fifth of the long resonant wavelength and less than one third of the short resonant wavelength. This new antenna has the advantages of low profile, light weight, dual-frequency capability, high gain, and easy processing.
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Bukharin, Viktor, and Nikolay Voytovich. "Selectivity of a resonant cavity antenna." ITM Web of Conferences 30 (2019): 05033. http://dx.doi.org/10.1051/itmconf/20193005033.

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The main selective characteristics of a Resonant Cavity Antenna, which is a radiating element of the antenna array of a glide path station, are presented. The results of rigorous electrodynamic modeling of a resonator antenna and experimental results of studies on antenna samples are presented
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Walia, Ritu, and Kamal Nain Chopra. "Technical Analysis and Overview of the Application of Artificial Dielectric Materials in the Form of Photonic Crystal Cavity with Resonance in Dirac Leaky-Wave Antennas." Materials Science Forum 960 (June 2019): 231–37. http://dx.doi.org/10.4028/www.scientific.net/msf.960.231.

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Application of Artificial Dielectric Materials in the form of Photonic crystal cavity with resonance in Dirac leaky-wave Antennas. The system investigated is a Photonic crystal cavity for the radiation properties of an antenna formed by a combination of a monopole radiation source and a cavity by a dielectric layer-by-layer 3D photonic crystal. The Photonic crystal cavity under study is working at resonance, since a high directivity, and a high power enhancement are obtainable at the resonant frequency of the cavity.In addition, an approach based on (i) Hughen's wavelets and (ii) the components of the incident Intensity after transmission through the system, is suggested for optimizing the performance of the optical antennas. Also, it has been discussed that the Optical antenna fabricated by Dielectric material - Photonic crystal is a better alternative to a conventional focusing lens, in Nanoscopy, in order to concentrate the laser radiation to dimensions smaller than the diffraction limit.
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Yang, Yun Xing, Hui Chang Zhao, Si Chen, and Yong Chen. "Design of a Miniaturization Microstrip Antenna and Cavity Model Analysis." Applied Mechanics and Materials 340 (July 2013): 427–30. http://dx.doi.org/10.4028/www.scientific.net/amm.340.427.

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On the demand of miniaturization of antenna, this paper presents a circular microstrip antenna whose part of its port is sealed. Changing part of its magnetic wall into electric wall, then a decimals mode which exist between andis proposed. Elaborating the theory of reducing the resonant frequency with Bessel functions characteristics and resonance formula of circular microstrip antenna. Using the HFSS for simulation, the resonant frequency of the antenna change from 3.0 GHz to 1.2 GHz. The results prove the reliability of theory analysis. The size could be reduced nearly 60% compared with ordinary antenna. The antenna has a simple structure and can be applied to engineering application.
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Bayderkhani, Reza, Keyvan Forooraghi, and Bijan Abbasi-Arand. "Gain-intensified slot antennas backed by SIW cavity using high-order cavity resonance." International Journal of Microwave and Wireless Technologies 8, no. 1 (September 9, 2014): 51–61. http://dx.doi.org/10.1017/s1759078714001202.

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In this paper, a gain-increased method of cavity-backed slot antennas based on excitation of high-order substrate-integrated waveguide cavity resonance has been proposed. To this end, the metallic posts are introduced in a main cavity to excite the cavity's TM220 mode. Then the properties of the modified cavity's TM220 mode are used to feed an array of 2 × 2 slot antenna. Moreover, to acquire insight of modified cavity's field distribution, a comprehensive modal study was performed on the modified cavity to fully understand the effects of the dividing walls on the cavity's field distribution. Also, compared with HFSS, the modal solution that is proposed in this paper provide a considerable time and storage saving. To validate the simulated results, two types of the proposed antenna forming two different polarizations (horizontal and vertical) are analyzed, simulated, and fabricated. The proposed antennas exhibit relatively gain of 8.2 dBi at resonant frequency and high front-to-back ratio. In addition, the gain-enhanced method proposed in the present paper can be extended for using even higher-order cavity resonances, such as TM440, TM660 etc., if higher gain is desirable. The proposed antennas are suitable for using in many wireless communication systems and some radar systems.
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Fu, Zihao, Tianliang Zhang, You Lan, Tianhai Wu, Wenxing Huang, and Leilei He. "Dual-Frequency Miniaturized Substrate Integrated Waveguide Quarter-Mode Cavity-Backed Antenna Based on Minkowski Fractal Gap with Orthogonal Polarization Radiation Characteristics." International Journal of Antennas and Propagation 2019 (April 15, 2019): 1–9. http://dx.doi.org/10.1155/2019/1816763.

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A novel quarter-mode substrate integrated waveguide miniaturized cavity-backed antenna loading Minkowski fractal gap is presented in this paper. Firstly, the resonant frequency of the rectangular substrate integrated waveguide resonator is reduced by etching the fractal gap in the resonator to achieve miniaturization. In addition, because of the symmetry of electric field distribution in second and third order resonant modes, the cavity can be segmented into a quarter-mode and the other order resonance modes with asymmetric electric field distribution can be suppressed according to the cavity model theory. Hence, the cavity size is further reduced. The dimension of designed antenna is 0.26λ0×0.26λ0 (λ0 is the wavelength in free space; in this paper, the corresponding wavelength is 3.6 GHz). Moreover, the orthogonal polarization of the proposed antenna in two frequency bands is achieved because the electric field is orthogonal in second and third order resonant modes. This dual-frequency orthogonal polarization characteristic enables antenna to communicate in two working bands and has good channel isolation. The simulated and measured results are consistent. The antenna gain is 4.67dBi and 3.4dBi, respectively, at 3.7GHz and 4.6GHz.
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Liu, Yahong, and Xiaopeng Zhao. "High-gain ultrathin resonant cavity antenna." Microwave and Optical Technology Letters 53, no. 9 (June 16, 2011): 1945–49. http://dx.doi.org/10.1002/mop.26213.

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Haralambiev, L. A., and H. D. Hristov. "Radiation Characteristics of 3D Resonant Cavity Antenna with Grid-Oscillator Integrated Inside." International Journal of Antennas and Propagation 2014 (2014): 1–6. http://dx.doi.org/10.1155/2014/479189.

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A three-dimensional (3D) rectangular cavity antenna with an aperture size of 80 mm×80 mm and a length of 16 mm, integrated with a four-MESFET transistor grid-oscillator, is designed and studied experimentally. It is found that the use of 3D antenna resonant cavity in case of small or medium gain microwave active cavity antenna leads to effective and stable power combining and radiation. The lack of lateral cavity diffraction and radiation helps in producing a directive gain of about 17 dB and radiation aperture efficiency bigger than 75% at a resonance frequency of 8.62 GHz. Good DC to RF oscillator efficiency of 26%, effective isotropic radiated power (EIRP) of 5.2 W, and SSB spectral power density of −82 dBc/Hz are found from the measured data. The 3D antenna cavity serves also as a strong metal container for the solid-state oscillator circuitry.
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Liu, Haixia, Shuo Lei, Xiaowei Shi, and Long Li. "Study of Antenna Superstrates Using Metamaterials for Directivity Enhancement Based on Fabry-Perot Resonant Cavity." International Journal of Antennas and Propagation 2013 (2013): 1–10. http://dx.doi.org/10.1155/2013/209741.

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Metamaterial superstrate is a significant method to obtain high directivity of one or a few antennas. In this paper, the characteristics of directivity enhancement using different metamaterial structures as antenna superstrates, such as electromagnetic bandgap (EBG) structures, frequency selective surface (FSS), and left-handed material (LHM), are unifiedly studied by applying the theory of Fabry-Perot (F-P) resonant cavity. Focusing on the analysis of reflection phase and magnitude of superstrates in presently proposed designs, the essential reason for high-directivity antenna with different superstrates can be revealed in terms of the F-P resonant theory. Furthermore, a new design of the optimum reflection coefficient of superstrates for the maximum antenna directivity is proposed and validated. The optimum location of the LHM superstrate which is based on a refractive lens model can be determined by the F-P resonant distance.
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Goudarzi, Azita, Mohammad Mahdi Honari, and Rashid Mirzavand. "Resonant Cavity Antennas for 5G Communication Systems: A Review." Electronics 9, no. 7 (July 1, 2020): 1080. http://dx.doi.org/10.3390/electronics9071080.

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Resonant cavity antennas (RCAs) are suitable candidates to achieve high-directivity with a low-cost and easy fabrication process. The stable functionality of the RCAs over different frequency bands, as well as, their pattern reconfigurability make them an attractive antenna structure for the next generation wireless communication systems, i.e., fifth generation (5G). The variety of designs and analytical techniques regarding the main radiator and partially reflective surface (PRS) configurations allow dramatic progress and advances in the area of RCAs. Adding different functionalities in a single structure by using additional layers is another appealing feature of the RCA structures, which has opened the various fields of studies toward 5G applications. This paper reviews the recent advances on the RCAs along with the analytical methods, and various capabilities that make them suitable to be used in 5G communication systems. To discuss different capabilities of RCA structures, some applicable fields of studies are followed in different sections of this paper. To indicate different techniques in achieving various capabilities, some recent state-of-the-art designs are demonstrated and investigated. Since wideband high-gain antennas with different functionalities are highly required for the next generation of wireless communication, the main focus of this paper is to discuss primarily the antenna gain and bandwidth. Finally, a brief conclusion is drawn to have a quick overview of the content of this paper.
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Dissertations / Theses on the topic "Resonant cavity antenna"

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Paryani, Rajesh. "DESIGN OF A WIDEBAND DUAL-POLARIZED CAVITY BACKED SLOT ANTENNA." Doctoral diss., University of Central Florida, 2010. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/2832.

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A new technique for designing wideband dual-polarized cavity-backed slot antennas is presented. The structure is in the form of a double-resonant, dual-polarized slot antenna backed by a shallow substrate integrated cavity with a depth of approximately one tenth the free space wavelength. The presence of the cavity behind the slot enhances the antenna s directivity and reduces the possibility of surface wave propagation in the antenna substrate when the element is used in an array environment. Moreover, the dual-polarized nature of this radiating element may be exploited to synthesize any desired polarization (vertical, horizontal, RHCP, or LHCP). The double-resonant behavior observed in this substrate-integrated cavity-backed slot antenna (SICBSA) is utilized to enhance its bandwidth compared to a typical cavity-backed slot antenna. A prototype of the proposed antenna is fabricated and tested. Measurement results indicate that a bandwidth of 19%, an average gain of 5.3 dB, and a wideband differential isolation of 30 dB can be achieved using this technique. The principles of operation along with the measurement results of the fabricated prototype are presented and discussed in this dissertation. The SICBSA is investigated as a candidate for use as an array element. A uniform two element phased array is demonstrated to locate the main beam from boresight to thirty degrees. The potential effects of mutual coupling and surface wave propagation are considered and analyzed.
Ph.D.
School of Electrical Engineering and Computer Science
Engineering and Computer Science
Electrical Engineering PhD
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Wang, Shenhong. "High-gain planar resonant cavity antennas using metamaterial surfaces." Thesis, Loughborough University, 2006. https://dspace.lboro.ac.uk/2134/12481.

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This thesis studies a new class of high gain planar resonant cavity antennas based on metamaterial surfaces. High-gain planar antennas are becoming increasing popular due to their significant advantages (e.g. low profile, small weight and low cost). Metamaterial surfaces have emerged over the last few years as artificial structures that provide properties and functionalities not readily available from existing materials. This project addresses novel applications of innovative metamaterial surfaces on the design of high-gain planar antennas. A ray analysis is initially employed in order to describe the beamfonning action of planar resonant cavity antennas. The phase equations of resonance predict the possibility of low-profile/subwavelength resonant cavity antennas and tilted beams. The reduction of the resonant cavity profile can be obtained by virtue of novel metamaterial ground planes. Furthermore, the EBG property of metamaterial ground planes would suppress the surface waves and obtain lower backlobes. By suppressing the TEM mode in a resonant cavity, a novel aperture-type EBG Partially Reflective Surface (PRS) is utilized to get low sidelobes in both planes (E-plane and H-plane) in a relatively finite structure. The periodicity optimization of PRS to obtain a higher maximum directivity is also investigated. Also it is shown that antennas with unique tilted beams are achieved without complex feeding mechanism. Rectangular patch antennas and dipole antennas are employed as excitations of resonant cavity antennas throughout the project. Three commercial electromagnetic simulation packages (Flomerics Microstripes ™ ver6.S, Ansoft HFSSTM ver9.2 and Designer ™ ver2.0) are utilized during the rigorous numerical computation. Related measurements are presented to validate the analysis and simulations.
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Obeidat, Khaled Ahmad. "Design Methodology for Wideband Electrically Small Antennas (ESA) Based on the Theory of Characteristic Modes (CM)." The Ohio State University, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=osu1274730653.

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Lu, Yi-Fong, and 盧宜鋒. "Modeling and Optimal Design of Planar High-Gain Cavity Resonant (Fabry-P&;#233;rot) Antenna." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/26803244222570619398.

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博士
國立臺灣大學
電信工程學研究所
102
We present a simple hybrid approach for the design of finite-size Fabry-P&;#233;rot antennas (FPAs), which are also called cavity resonant antennas, used for broadside radiation. The model provides an accurate estimation on the directivity and aperture efficiency, and hence may obtain the optimal configuration of the partially reflective surface (PRS) and the antenna dimensions. The overall FPA maximum directivity and the required dimensions are derived using leaky-wave analysis and the Fourier transform. The presented model was validated by conducting a full-wave simulation on a classic FPA structure. Additionally, from design curves of the presented model, a PCB-based patch-patterned FPA has been implemented and measured. The illustrated FPA prototype has a realized gain of 19.7 dBi with an aperture efficiency of 74%. The model predictions were very consistent with the full-wave simulation and measured results. After discussing the directivity and its adapted aperture area, we focus on excitation structures. A patch source is compared with a dipole source, revealing a degradation of the gain for the patch source due to the substrate loss and the surface loss. Therefore, we chose the dipole source for antenna excitation. However, it is hard to be implemented on dual-polarization excitation for FPAs. The intersecting dipoles with fed baluns are presented for dual-polarization FPAs and the impedance matching can still be achieved by an impedance transformer. The experimental results show that a gain of 20 dBi and the isolation of two ports is good enough and better than 23 dB. Unlike the classic single-layered PRS, double-layered PRSs with reflection phase zero and positive phase gradient are proposed, respectively. The former can be used to reduce the FPA’s air-cavity height. It is comprised of two orthogonal periodic strips where one is inductive and the other is capacitive, etched on both sides of a dielectric slab, respectively. According to the PRS equivalent circuit model, the design guideline is presented, exploring a novel PRS with characteristics of artificial magnetic conductor (AMC) as well. The novel PRS is constituted of two layers of strip gratings with the same permuted direction, that is, the PRS comprises two capacitive screens. Through full-wave simulations, FPAs with novel PRSs have the advantages over traditional AMC-PRSs, with respect to achieving higher gains. Accordingly, PRS dimensions of 90 mm × 90 mm are employed here to verify an agreement between the measurement and simulation. The measurement demonstrates gains at 10.5-GHz as high as 15.1 dBi and 18.3 dBi for the traditional and novel AMC-PRSs, respectively. A PRS with a positive phase increment against frequencies can be used for bandwidth enhancement. Traditional AMC-PRS metallic layers can be placed upside down and modified adaptively to form the PRS with a positive phase gradient. According to the PRS equivalent circuit, we provide an explanation for the reason why the reflection phase of the presented PRS may increase against frequencies. Subsequently, experimental results validated the bandwidth enhancement by comparing the modified PRS to the conventional FPA with a single-layered PRS.
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Lee, Wei-Ya, and 李薇雅. "Design and Implementation of Printed Cavity Resonant Antenna and Arrays for Circularly Polarized Millimeter-Wave Applications." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/nuu2tk.

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碩士
國立臺灣大學
電信工程學研究所
105
In this thesis, we propose a cavity resonant antenna (CRA) with high gain and circular polarization for millimeter wave applications. The presented CRA consists of a partially reflecting surface (PRS), a metallic ground plane, and a predesignated feeding structure in the cavity, all configured into a solid multi-layered printed circuit board (PCB). Through circuit loaded feeding structure, the excited EM waves bounce back and forth within the cavity and achieve the directive patterns. First, we arranged four symmetric feeding structures in sequential rotation and connected them to four sequential phased lumped port to verify the design concept of circular polarization (CP). Second, we designed a correspondent sequential phased 4-port power divider circuitry and connected to the predesignated feeding structures to realize the CP operation. Additionally, we employed a metallic wall with the plated through hole (PTH) surroundings the edges of the CRA unit module. Advantages of using the surrounding metallic wall may increase the antenna gain and suppress the coupling between the module elements in array. When designing the 2x2 array, we utilized the sequential rotation technique again to improve the axial ratio bandwidth and the impedance bandwidth of the entire array. The overall performances of the developed antennas are: the axial ratio bandwidth of 1 % and impedance bandwidth of 3.9 % for the single element; and the axial ratio bandwidth of 8% and impedance bandwidth of 19 % for array. For the antenna gain at broadside, the presented antenna achieved an 18.5 dBic for the single element and a 22.3 dBic for the 2x2 arrays.
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CHEN, CHUN-SHENG, and 陳駿勝. "The Design and Production of 2.45 GHz Microwave Generated through Microwave Resonant Cavity and Its Receiving Antenna, Energy Harvesting, and Energy Storage." Thesis, 2019. http://ndltd.ncl.edu.tw/handle/3snet8.

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碩士
國立中正大學
光機電整合工程研究所
107
The main purpose of this thesis is to complete the Design and Production of 2.45 GHz Microwave Generated through Microwave Resonant Cavity and its Receiving Antenna, Energy Harvesting, and Energy Storage. The system includes microwave oven magnetron, dipole antenna, voltage doubling rectifier filter circuit, matching circuit and energy storage module. In this thesis, the microwave launcher made by the magnetron of microwave oven emits 2.45GHz microwave energy, which is received by the dipole antenna and then converted to electric power through voltage doubling rectifier filter circuit that matches with the resistance of the antenna for storage and application.
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Book chapters on the topic "Resonant cavity antenna"

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Jackson Kimball, Derek F., and Arran Phipps. "Dark Matter Radios." In The Search for Ultralight Bosonic Dark Matter, 201–18. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-030-95852-7_7.

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AbstractMany theories predict that ultralight bosonic dark matter (UBDM) can couple to photons and thus generate electromagnetic signals. In such scenarios, UBDM can be searched for using a radio: an antenna connected to a tunable LC circuit that is in turn connected to an amplifier. Such “dark matter radios” are particularly useful tools to search the broad range of UBDM wavelengths where resonant cavity dimensions are too large to be practical. In this chapter, we discuss how dark matter radios can be used to search for UBDM, focusing on the case of hidden photons.
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Kaabal, Abdelmoumen, Mustapha El Halaoui, Saida Ahyoud, and Adel Asselman. "1D Electromagnetic Band Gap Analysis and Applications." In Advances in Computer and Electrical Engineering, 147–91. IGI Global, 2019. http://dx.doi.org/10.4018/978-1-5225-7539-9.ch005.

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In this chapter, a detailed study of the one-dimension electromagnetic band gap (1D-EBG) structures and their application in a directional antenna design are presented. To improve the ability and analyze and understand the behavior of 1D-EBG, three techniques of analysis are developed. The results show that the periodicity of the dielectric permittivity makes it possible to stop the waves propagation in certain frequency bands. A comparison between the different methods shows an excellent agreement. An evolution of the transmission coefficient of a structure consisting of six layers with a cavity of thickness equal a wavelength in the middle of the structure, shows that there is a peak of transmission which is formed at the center frequency of the band gap and reflects a resonance phenomenon. This phenomenon of frequency filtering is exploited for the design of a directive EBG antenna by introducing an excitation to the cavity center.
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Conference papers on the topic "Resonant cavity antenna"

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Djordjevic, Antonije R., and Alenka G. Zajic. "Optimization of resonant-cavity antenna." In 2006 1st European Conference on Antennas and Propagation (EuCAP). IEEE, 2006. http://dx.doi.org/10.1109/eucap.2006.4584938.

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Das, Satyadeep, and Sudhakar Sahu. "Broadband metamaterial based Resonant Cavity Antenna." In 2015 IEEE Applied Electromagnetics Conference (AEMC). IEEE, 2015. http://dx.doi.org/10.1109/aemc.2015.7509183.

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Meng, Fanji, Ying Liu, and Satish K. Sharma. "A Dual-Polarized Broadband Resonant Cavity Antenna." In 2018 12th International Symposium on Antennas, Propagation and EM Theory (ISAPE). IEEE, 2018. http://dx.doi.org/10.1109/isape.2018.8634288.

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Lalbakhsh, Ali, and Karu P. Esselle. "Design of an improved resonant cavity antenna." In 2017 International Conference on Electromagnetics in Advanced Applications (ICEAA). IEEE, 2017. http://dx.doi.org/10.1109/iceaa.2017.8065609.

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Vaid, Swati, and Ashok Mittal. "A three layer circularly polarized resonant cavity antenna." In 2014 IEEE International Microwave and RF Conference (IMaRC). IEEE, 2014. http://dx.doi.org/10.1109/imarc.2014.7038966.

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Moghadas, H., M. Daneshmand, P. Mousavi, and R. Karumudi. "Dual-band dual-polarized high-gain Resonant Cavity Antenna." In 2011 IEEE Antennas and Propagation Society International Symposium and USNC/URSI National Radio Science Meeting. IEEE, 2011. http://dx.doi.org/10.1109/aps.2011.5996963.

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Ji, Yuan, and Baiping Li. "Fabry-Perot Resonant Cavity Antenna Using Split Resonator Ring." In 2021 International Conference on Intelligent Transportation, Big Data & Smart City (ICITBS). IEEE, 2021. http://dx.doi.org/10.1109/icitbs53129.2021.00078.

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Shufeng Zheng, Yapeng Li, S. Gao, Luyu Zhao, Wei Hu, Yuanming Cai, Qi Luo, and Chao Gu. "A Low-profile 2D Tilted-beam Resonant Cavity Antenna." In 12th European Conference on Antennas and Propagation (EuCAP 2018). Institution of Engineering and Technology, 2018. http://dx.doi.org/10.1049/cp.2018.1098.

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Ghosh, Sourav, and Sudhakar Sahu. "Dual-band High-gain Metamaterial Based Resonant Cavity Antenna." In 2018 Second International Conference on Computing Methodologies and Communication (ICCMC). IEEE, 2018. http://dx.doi.org/10.1109/iccmc.2018.8487528.

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Sahu, Sudhakar, and Satyadeep Das. "Broadband high gain meta-material based resonant cavity antenna." In 2015 9th International Congress on Advanced Electromagnetic Materials in Microwaves and Optics (METAMATERIALS). IEEE, 2015. http://dx.doi.org/10.1109/metamaterials.2015.7342495.

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