Design of Frequency-Selective Surfaces Radome for a Planar Slotted Waveguide Antenna

Chen, Haiyan; Hou, Xinyu; Deng, Longjiang

doi:10.1109/lawp.2009.2035646

Cited by 129 publications

(14 citation statements)

References 7 publications

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“…To attenuate interference from the radome to the communications band signal, the radome is required to have high transmission and low insertion loss in a specific frequency band to achieve signal reception and transmission. The radome is usually designed as a frequency-selective filter, allowing the communication frequency band to pass with minimal insertion loss, while reflecting out-of-band signals [2][3] and preventing coupling with nearby antennas to avoid interference with the operation of the antenna [4] .…”

Section: Introductionmentioning

confidence: 99%

Design and optimization of flexible metamaterials for microwave and infrared compatible stealth

Wu,

Li,

Tian

et al. 2024

International Conference on Optoelectronic Materials and Devices (ICOMD 2023)

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Section: Introductionmentioning

confidence: 99%

Design and optimization of flexible metamaterials for microwave and infrared compatible stealth

Wu,

Li,

Tian

et al. 2024

International Conference on Optoelectronic Materials and Devices (ICOMD 2023)

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“…One of the methods is structural/geometrical shaping [3][4][5][6][7], in which the shape of the radiating structure is modified to ensure the backscatter avoids the threat direction. The other method is based on periodic structures, and this includes the use of radar absorbing materials (RAMs) [8][9][10], frequency selective surface (FSS) ground plane [11,12], FSS radome [13,14], electromagnetic bandgap (EBG) structures [15][16][17], artificial magnetic conductors (AMCs) [18], perfect metamaterial absorbers (MAs) [19][20][21][22], and polarization conversion metasurfaces (PCMs) [23,24]. In all of the above configurations, the periodic structure is implemented either at the ground plane, on top of the radiator, or loaded around the planar radiator, and, in all of these implementations, although the RCS is lowered, the antenna radiation property either remains just intact, or it slightly deteriorates.…”

Section: Introductionmentioning

confidence: 99%

Quarter Wavelength Fabry–Perot Cavity Antenna with Wideband Low Monostatic Radar Cross Section and Off-Broadside Peak Radiation

et al. 2021

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Since antennas are strong radar targets, their radar cross section (RCS) reduction and radiation enhancement is of utmost necessity, particularly for stealth platforms. This work proposes the design of a Fabry–Perot Cavity (FPC) antenna which has wideband low monostatic RCS. While in the transmission mode, not only is gain enhancement achieved, but radiation beam is also deflected in the elevation plane. Moreover, the design is low-profile, i.e., the cavity height is ~λ/4. A patch antenna designed at 6 GHz serves as the excitation source of the cavity constructed between the metallic ground plane and superstrate. The superstrate structure is formed with absorptive frequency selective surface (AFSS) in conjunction with dual-sided partially reflective surface (PRS). Resistor loaded metallic rings serve as the AFSS, while PRS is constructed from inductive gradated mesh structure on one side to realize phase gradient for beam deflection; the other side has fixed capacitive elements. Results show that wideband RCS reduction was achieved from 4–16 GHz, with average RCS reduction of about 8.5 dB over the reference patch antenna. Off-broadside peak radiation at −38° was achieved, with gain approaching ~9.4 dB. Simulation and measurement results are presented.

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“…For this reason, the FSS has been commonly used in applications at microwave frequencies, for example, as the screen on a microwave oven 1 , in antenna radomes 2 , and communication filters 3 , and also in the optical region, as filters 4,5 and polarizers 6 . A typical FSS is comprised of metamaterials which have a thin and repetitive metallic pattern on their dielectric surface, and have been widely studied recently.…”

Section: Introductionmentioning

confidence: 99%

Transmission characteristics of all-dielectric guided-mode resonance filter in the THz region

Bark

Kim

Jeon

2018

Sci Rep

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In this study we report the first on the terahertz (THz) transmission characteristics of a guided-mode resonance (GMR) filter made of all-dielectric material. Two strong transverse electric (TE) resonance modes, TE0,1 and TE1,1, and one strong transverse magnetic (TM) resonance mode, TM0,1, were detected. The measured resonances can be explained by diffraction from the grating surface of the GMR filter, and by guiding along the inside of the filter (slab waveguide). Because two identical GMR filters were employed to overcome limited grating numbers, the measured Q-factors of the TM0,1, TE1,1, and TM0,1 modes were as high as 62.9, 71.0, and 74.4 respectively. Also, we obtained polarization efficiencies of up to 96.9, 96.3, and 92.9% for the TM0,1, TM1,1, and TM0,1 modes, respectively, when the GMR filter was rotated to 90°. By increasing the incident THz beam angle, one TE resonance can be divided into two TE resonances, and the resonant frequency can be adjusted like a THz tunable resonance filter. Furthermore, when the GMR filters were inserted between Teflon plates, only the TM1,1 mode was perfectly removed. The designed GMR filter has a high Q-factor, tunable filter, good polarizer, and good modulator characteristics. These experimental results were in good agreement with simulation results.

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Design of Frequency-Selective Surfaces Radome for a Planar Slotted Waveguide Antenna

Cited by 129 publications

References 7 publications

Design and optimization of flexible metamaterials for microwave and infrared compatible stealth

Design and optimization of flexible metamaterials for microwave and infrared compatible stealth

Quarter Wavelength Fabry–Perot Cavity Antenna with Wideband Low Monostatic Radar Cross Section and Off-Broadside Peak Radiation

Transmission characteristics of all-dielectric guided-mode resonance filter in the THz region

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