Comparative analysis of frequency selective surface geometry effect in Fabry-Perot Cavity antenna design

Lee, Chanjoon; Sainati, Robert; Franklin, Rhonda; Harjani, Ramesh

doi:10.1109/wamicon.2015.7120426

Cited by 10 publications

(4 citation statements)

References 4 publications

(2 reference statements)

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“…Placing a superstrate over an antenna with a ground plane is widely utilised to improve the antenna gain [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15]. This kind of antenna is called the resonant cavity antenna (RCA), which has some attractive features: high gain, simple feeding and planar configuration [1,2].…”

Section: Introductionmentioning

confidence: 99%

“…Most of these superstrates are of periodic structures [8][9][10][11][12][13], except the dielectric superstrate [3][4][5]. Owing to the advantages of light weight, low cost and easy fabrication, superstrates of single-layer periodic structures are the most popular and widely used for the RCA [8][9][10][11][12][13][14][15]. Desired electric properties can be obtained easily by configuring the periodic structures' patterns and dimensions.…”

Section: Introductionmentioning

confidence: 99%

“…In previous researches, various patterns were used for the superstrate including patch [1,4,5,9], ring [8], slot [14,15] etc. [2,[10][11][12][13].…”

Section: Introductionmentioning

confidence: 99%

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Comparative effects of capacitive and inductive superstrates on the RCA's gain

Zhou¹,

Chen²,

Cui

et al. 2018

IET Microwaves, Antennas & Propagation

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The radiation performance of the resonant cavity antenna (RCA) is mainly determined by the superstrate, and thereby various superstrates are designed for the RCA to obtain high performance. In this work, the comparative effects of the capacitive and inductive superstrates on the RCA's gain are investigated systematically. Three approaches including the leaky‐wave model, full‐wave simulations and prototype measurements are employed for the investigation. Using the leaky‐wave model, the gains of the RCA with various superstrates are calculated and a difference between the gains with the capacitive and inductive superstrates is observed. Full‐wave simulations and prototype measurements further prove the result. All the approaches demonstrate that the capacitive superstrate has the potential to obtain a higher gain, in comparison with the inductive superstrate having the same reflection magnitude and aperture size.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Comparative effects of capacitive and inductive superstrates on the RCA's gain

Zhou¹,

Chen²,

Cui

et al. 2018

IET Microwaves, Antennas & Propagation

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“…The metal aperture-type FSSs transmit the electromagnetic wave around the resonance frequency [1]. In recent year, the FSSs have been investigated by many researchers about the structure of single-layer [2,3], multi-layer [4][5][6][7], or 3D [8][9][10], metal unit. Changing the design of electromagnetic materials, unit size, arrangement and other parameters, metal FSSs can obtain the specific resonance frequency, such as broadband, multi frequency, better angle stability, miniaturization or other characteristics.…”

Section: Introductionmentioning

confidence: 99%

Influence Factors of Frequency Response Characteristics for a Novel Velvet Frequency Selective Fabric

Xiao¹

2018

JTSFT

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In this paper, a novel three-dimension (3D) frequency selective fabric (FSF) based on U-shaped velvet, using metallic yarns as the conductive unit material via cluster velvet weaving method, is prepared. U-shaped unit structure is formed by two ending points of the dipole unit extending into the space Z-direction. By testing and analyzing transmission coefficient of specimens, frequency response characteristics are studied. Compared to FSF with dipole unit structure, the new velvet fabrics with the same unit length have double-frequency resonance at 2 -18GHz. With an increase of inclination angle of velvet, the resonance frequency is changed slightly, accompanied by a trend of decreasing first and then stabilizing. The density of conductive yarns is enlarged, and the resonance frequency moves slowly to higher frequency. If the total length of U-shaped unit on the bottom is greater, the resonance frequency will go to lower frequency. The number of connected U type rarely affects the resonance frequency with the same bottom length. And this work shows that U-shaped velvet FSFs can be designed with more parameters comparing with planar FSF. What's more, they also have a multi-frequency response character.

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