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Proceedings ArticleDOI

A New Fabry-Perot Cavity Antenna with Wideband Characteristics

TL;DR: In this paper, a Fabry-Perot Cavity Antenna (FPCA) has been proposed to achieve considerably wide bandwidth with high gain, where an aperture-fed microstrip patch has been used as the primary radiator where the excitation has been initiated by a specially designed dual-offset feedline.
Abstract: A Fabry-Perot Cavity Antenna (FPCA) has been proposed to achieve considerably wide bandwidth with high gain. An aperture-fed microstrip-patch has been used as the primary radiator where the excitation has been initiated by a specially designed dual-offset feedline. A metal-grid superstrate has been designed for achieving wide matching bandwidth (50%) with more than 10 dBi gain. It promises up to 16.7 dBi gain with satisfactory performance in terms of side lobe level (−15dB to −21dB) and cross-pol isolation (up to 45dB).
Citations
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Proceedings ArticleDOI
01 Dec 2019
TL;DR: A wideband design technique of a Fabry-Perot cavity antenna (FPCA) is presented based on Particle Swarm Optimization (PSO) algorithm and appears to be very efficient as the optimization technique is driven by commercial electromagnetic simulator.
Abstract: A wideband design technique of a Fabry-Perot cavity antenna (FPCA) is presented based on Particle Swarm Optimization (PSO) algorithm. The proposed method appears to be very efficient as the optimization technique is driven by commercial electromagnetic simulator. Ten antenna parameters have been handled successfully to achieve a wide band optimized result. About 16.8 dBi maximum broadside gain has been achieved using the optimally designed antenna. Peak gain is maintained above 11 dBi over the 50% impedance bandwidth of the antenna.

Cites background from "A New Fabry-Perot Cavity Antenna wi..."

  • ...A primary radiator with broadside as well as wideband characteristics may help [10]....

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References
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Book
31 Oct 2000
TL;DR: Feeding Techniques and Modeling, Design and Analysis of Microstrip Antenna Arrays: Parallel and Series Feed Systems, and Theory and Design of Active Integrated Micro Strip Antenna Amplifiers.
Abstract: Microstrip Radiators: Various Microstrip Antenna Configurations. Feeding Techniques and Modeling. Applications. Radiation Field. Surface Waves and Photonic Band-Gap Structures. Analytical Models for Microstrip Antennas: Transmission Line Model. Cavity Model. Generalized Cavity Model. Multi-port Network Model (MNM). Radiation Fields. Aperture Admittance. Mutual Admittance. Model for Coaxial Probe in Microstrip Antennas. Comparison of Analytical Models. Full-Wave Analysis of Microstrip Antennas: Spectral Domain Full-Wave Analysis. Mixed-Potential Integral Equation Analysis. Finite-Difference Time Domain Analysis.Rectangular Microstrip Antenna: Models for Rectangular Patch Antenna. Design Considerations for Rectangular Patch Antennas. Tolerance Analysis of Rectangular Microstrip Antennas. Mechanical Tuning of Patch Antennas. Quarter-wave Rectangular Patch Antenna. Circular Disk and Ring Antennas: Analysis of a Circular Disk Microstrip Antenna. Design Considerations for Circular Disk Antennas. Semicircular Disk and Circular Sector Microstrip Antennas. Comparison Of Rectangular And Circular Disk Microstrip Antennas. Circular Ring or Annular Ring Microstrip Antenna. Circular Sector Microstrip Ring Antenna. Microstrip Ring Antennas of Non-Circular Shapes. Dipoles and Triangular Patch Antennas: Microstrip Dipole and Center-Fed Dipoles. Triangular Microstrip Patch Antenna. Design of an Equilateral Triangular Patch Antenna. Microstrip Slot Antennas: Microstrip-Fed Rectangular Slot Antennas. CPW-Fed Slot Antennas. Annular Slot Antennas. Tapered Slot Antennas (TSA). Comparison of Slot Antennas with Microstrip Antennas. Circularly Polarized Microstrip Antennas and Techniques: Various Types of Circularly Polarized Microstrip Antennas. Singly-Fed Circularly Polarized Microstrip Antennas. Dual-Orthagonal Feed Circularly Polarized Microstrip Antennas. Circularly Polarized Traveling-Wave Microstrip-Line Arrays. Bandwidth Enhancement Techniques. Sequentially Rotated Arrays. Broad-Banding of Microstrip Antennas: Effect of Substrate Parameters on Bandwidth. Selection of Suitable Patch Shape. Selection of Suitable Feeding Technique. Multi-Moding Techniques. Other Broadbanding Techniques. Multifrequency Operation. Loaded Microstrip Antennas and Applications: Polarization Diversity Using Microstrip Antennas. Frequency Agile Microstrip Antennas. Radiation Pattern Control of Microstrip Antennas. Loading Effect of a Short. Compact Patch Antennas. Planar Inverted F Antenna. Dual-Frequency Microstrip Antennas. Dual-Frequency Compact Microstrip Antennas. Active Integrated Microstrip Antennas: Classification of Active Integrated Microstrip Antennas. Theory and Design of Active Integrated Microstrip Antenna Oscillators. Theory and Design of Active Integrated Microstrip Antenna Amplifiers. Frequency Conversion Active Integrated Microstrip Antenna Theory and Design. Design and Analysis of Microstrip Antenna Arrays: Parallel and Series Feed Systems. Mutual Coupling. Design of Linear Arrays. Design of Planar Arrays. Monolithic Integrated Phased Arrays.

3,612 citations


"A New Fabry-Perot Cavity Antenna wi..." refers methods in this paper

  • ...A dual-offset feedline has been used to enhance the coupling efficiency [8] and to maintain the broadside pattern of the patch over the entire band....

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Journal ArticleDOI
TL;DR: In this paper, the authors investigated the effect of placing a partially reflecting sheet in front of an antenna with a reflecting screen at a wavelength of 3.2 cm and showed that large arrays produce considerably greater directivity but their efficiency is poor.
Abstract: Multiple reflections of electromagnetic waves between two planes are studied, and the increase in directivity that results by placing a partially reflecting sheet in front of an antenna with a reflecting screen is investigated at a wavelength of 3.2 cm. The construction and performance of various models of such arrays is discussed. Thus, for example, a "reflex-cavity antenna" with an outer diameter of 1.88 \lambda and an over-all length of only 0.65 \lambda is described which has half-power beamwidths of 34\deg and 41\deg in the E and H planes, respectively, and a gain of approximately 14 db. It is shown that larger systems produce considerably greater directivity but that their efficiency is poor.

977 citations


"A New Fabry-Perot Cavity Antenna wi..." refers background in this paper

  • ...This produces a uniform phase-front [1] parallel to the superstrate which is essential for a directive radiation....

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Journal ArticleDOI
01 Dec 2001
TL;DR: In this paper, a high gain planar antenna with an optimized partially reflecting surface (PRS) placed in front of a waveguide aperture in a ground plane was investigated, where the antenna performance was initially related to the reflection characteristics of the PRS array following an approximate analysis.
Abstract: A high gain planar antenna has been investigated, using an optimised partially reflecting surface (PRS) placed in front of a waveguide aperture in a ground plane. The antenna performance is initially related to the reflection characteristics of the PRS array following an approximate analysis. The array geometry is optimised using an analytical formula. The optimisation results are verified using a full wave model taking into account the edge effects. The array size for maximum antenna efficiency has also been investigated.

611 citations

Journal ArticleDOI
TL;DR: In this article, a fast analytical solution for the radiation field of a microstrip antenna loaded with a generalized superstrate is proposed using the cavity model of microstrip antennas in conjunction with the reciprocity theorem and the transmission line analogy.
Abstract: A fast analytical solution for the radiation field of a microstrip antenna loaded with a generalized superstrate is proposed using the cavity model of microstrip antennas in conjunction with the reciprocity theorem and the transmission line analogy. The proposed analytical formulation for the antenna's far-field is much faster when compared to full-wave numerical methods. It only needs 2% of the time acquired by full-wave analysis. Therefore the proposed method can be used for design and optimization purposes. The method is verified using both numerical and experimental results. This verification is done for both conventional dielectric superstrates, and also for artificial superstrates. The analytical formulation introduced here can be extended for the case of a patch antenna embedded in a multilayered artificial dielectric structure. Arguably, the proposed analytical technique is applied for the first time for the case of a practical microstrip patch antenna working in the Universal Mobile Telecommunications System (UMTS) band and covered with a superstrate made of an artificial periodic metamaterial with dispersive permeability and permittivity.

57 citations


"A New Fabry-Perot Cavity Antenna wi..." refers background in this paper

  • ...On the other hand, a narrow-band primary radiator like a patch or a slot fails to provide the same [7]....

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Journal ArticleDOI
TL;DR: In this article, a resonance cavity antenna (RCA) employing nontransparent solid metal sheet as superstrate is proposed for the first time, and the proposed configuration is much advantageous in terms of design, simplicity, structural stability, fabrication, and cost without compromising in gain, efficiency, and bandwidth.
Abstract: A resonance cavity antenna (RCA) has been explored employing nontransparent solid metal sheet as superstrate which, to the best of our knowledge, is reported for the first time. The proposed configuration is much advantageous in terms of design, simplicity, structural stability, fabrication, and cost without compromising in gain, efficiency, and bandwidth. A probe-fed dielectric resonator antenna (DRA) with ${\boldsymbol{\varepsilon} _r} = {\bf 10}$ has been used as the primary radiator. Proposed RCA bearing overall size ${\bf 1}.{\bf 1}{\boldsymbol{\lambda}} \times {\bf 1}.{\bf 1}{\boldsymbol{\lambda}} \times {\bf 0}.{\bf 6}{\boldsymbol{\lambda}}$ promises for large impedance bandwidth ( ${\sim} {\bf 23}\% $ ) with considerably high gain (11.8–12.2 dBi). The superstrate size is relatively compact compared to its semitransparent versions, investigated earlier. Present design has been experimentally validated indicating as much as 12 dBi peak gain with more than 96.5% efficiency.

52 citations


"A New Fabry-Perot Cavity Antenna wi..." refers background or methods in this paper

  • ...A radiator with broadside pattern is generally selected as a ‘primary radiator’ and may be realized using a ‘microstrip patch’, ‘dielectric resonator antenna (DRA)’ or ‘radiating slot’....

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  • ...A moderately wideband primary radiator like DRA [3] is generally used to obtain wide matching bandwidth....

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  • ...In [3], the high-gain performance of this antenna has been explained using an aperture field distribution over the superstrate....

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  • ...This may be realized from a simple metalsheet [3]....

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