Proceedings Article10.1109/APS.2015.7304933
Leaky-wave explanation of gain-bandwidth-enhanced Fabry-Pérot Cavity antennas formed by a thick multilayer partially-reflective surface
Alister Hosseini,Filippo Capolino,David R. Jackson +2 more
- 19 Jul 2015
- pp 1090-1091
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TL;DR: In this paper, a leaky-wave (LW) explanation of gain-bandwidth-enhanced Fabry-Perot Cavity (FPC) antennas formed by a thick multilayer partially-reflective surface (PRS) is studied.
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Abstract: A leaky-wave (LW) explanation of gain-bandwidth-enhanced Fabry-Perot Cavity (FPC) antennas formed by a thick multilayer partially-reflective surface (PRS) is studied. We first propose a multilayer PRS resulting in a wideband FPC antenna. Then the wideband radiated beam characteristics of the FPC antenna are interpreted based on a LW excitation model. The LW dispersion diagram is provided that explains the wideband FPC operation. It is shown that the FPC antenna bandwidth enhancement corresponds to having multiple optimum frequency points in the dispersion curve of the leaky waves, where the phase and attenuation constants are equal.
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Citations
Gain enhancement methods for printed circuit antennas
David R. Jackson,Nicolaos G. Alexopoulos +1 more
- 01 Nov 1984
TL;DR: In this article, a substrate-superstrate printed antenna geometry which allows for large antenna gain is presented, asymptotic formulas for gain, beamwidth, and bandwidth are given, and the bandwidth limitation of the method is discussed.
573
Leaky-Wave Analysis of Wideband Planar Fabry–Pérot Cavity Antennas Formed by a Thick PRS
TL;DR: In this paper, a unique dispersion characteristic of the dominant excited leaky-waves (LWs) inside Fabry-Perot cavities was investigated. But the authors focused on the non-Foster behavior of the reflection coefficient phase of the partially reflective surface (PRS) forming the cavity.
56
Metasurface-based wideband, low-profile, and high-gain antenna
TL;DR: In this article, a dual-layer metasurface-based antenna with high gain and low profile was proposed for wideband, low-profile, and high gain antenna.
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Coupling Substrate-Integrated Waveguides to Increase the Gain Bandwidth of Leaky-Wave Antennas
TL;DR: In this article, a novel technique to increase the pattern bandwidth of substrate-integrated waveguide leaky-wave antennas (SIW LWAs) is proposed, where the gain at the desired angle can be kept stable across a wide-frequency band.
An overview of metasurfaces for thin antenna applications
TL;DR: Casaletti et al. as discussed by the authors reviewed the latest progress in metasurface antenna design, where they are used to miniaturize the profile, increase the bandwidth, and control the radiation pattern in the near and far-field regions.
10
References
Gain enhancement methods for printed circuit antennas
TL;DR: The method is extended to produce narrow patterns about the horizon, and directive patterns at two different angles, and the bandwidth limitation of the method is discussed.
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Gain enhancement methods for printed circuit antennas
David R. Jackson,Nicolaos G. Alexopoulos +1 more
- 01 Nov 1984
TL;DR: In this article, a substrate-superstrate printed antenna geometry which allows for large antenna gain is presented, asymptotic formulas for gain, beamwidth, and bandwidth are given, and the bandwidth limitation of the method is discussed.
573
The Use of Simple Thin Partially Reflective Surfaces With Positive Reflection Phase Gradients to Design Wideband, Low-Profile EBG Resonator Antennas
TL;DR: Partially reflecting surfaces with positive reflection phase gradients are investigated for the design of wideband, low profile electromagnetic band gap (EBG) resonator antennas in this article, where three such surfaces, each with printed dipoles on both sides, have been designed to obtain different positive reflection phases and reflection magnitude levels in the operating frequency bands.
270
Improved Bandwidth Formulas for Fabry-Pérot Cavity Antennas Formed by Using a Thin Partially-Reflective Surface
Ali Hosseini,Filippo Capolino,Franco De Flaviis,Paolo Burghignoli,Giampiero Lovat,David R. Jackson +5 more
TL;DR: In this paper, the power bandwidth of Fabry-Perot-cavity antennas comprised of a thin partially-reflective-surface (PRS) above a perfectly conducting ground plane, based on its transverse-equivalent network model and the simple susceptance model, is studied.
28
Design and implementation of broadband partially reflective surface antenna
Yi-Fong Lu,Yi-Cheng Lin +1 more
- 03 Jul 2011
TL;DR: In this article, a partially reflective surface (PRS) antenna with bandwidth enhancement using two-layer periodic strips was presented, which consists of a PRS of double-sided PCB, a U-slotted patch antenna for excitation, and a backed electric ground plane.
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