Design of absorptive frequency selective surface with good transmission at high frequency

2015 ◽  
Vol 51 (12) ◽  
pp. 885-886 ◽  
Author(s):  
Qiang Chen ◽  
Liang Chen ◽  
Jiajun Bai ◽  
Yunqi Fu
Keyword(s):  
High Frequency ◽  
Frequency Selective Surface ◽  
Frequency Selective

scholarly journals An Ultraminiaturized Dual-Stopband Frequency Selective Surface for Ultra High Frequency

IEEE Access ◽  
2020 ◽  
Vol 8 ◽  
pp. 44830-44835
Author(s):  
Lei Zhao ◽  
Xinhua Liang ◽  
Zhao-Min Chen ◽  
Yuan Li ◽  
Shengjun Zhang ◽  
...  
Keyword(s):  
High Frequency ◽  
Frequency Selective Surface ◽  
Ultra High Frequency ◽  
Frequency Selective

scholarly journals Wideband RCS Reduction of Microstrip Array Antenna Based on Absorptive Frequency Selective Surface and Microstrip Resonators

2017 ◽  
Vol 2017 ◽  
pp. 1-11 ◽  
Author(s):  
Jingjing Xue ◽  
Wen Jiang ◽  
Shuxi Gong
Keyword(s):  
Cross Section ◽  
High Frequency ◽  
Frequency Selective Surface ◽  
Array Antenna ◽  
Microstrip Resonators ◽  
Absorptive Property ◽  
Microstrip Array ◽  
Frequency Selective ◽  
Wideband Radar ◽  
Microstrip Array Antenna

An approach for wideband radar cross section (RCS) reduction of a microstrip array antenna is presented and discussed. The scheme is based on the microstrip resonators and absorptive frequency selective surface (AFSS) with a wideband absorptive property over the low band 1.9–7.5 GHz and a transmission characteristic at high frequency 11.05 GHz. The AFSS is designed to realize the out-of-band RCS reduction and preserve the radiation performance simultaneously, and it is placed above the antenna with the operating frequency of 11.05 GHz. Moreover, the microstrip resonators are loaded to obtain the in-band RCS reduction. As a result, a significant RCS reduction from 1.5 GHz to 13 GHz for both types of polarization has been accomplished. Compared with the reference antenna, the simulated results exhibit that the monostatic RCS of the proposed array antenna in x- and y-polarization can be reduced as much as 17.6 dB and 21.5 dB, respectively. And the measured results agree well with the simulated ones.

scholarly journals Improvements of trapezoid antenna gain using artificial magnetic conductor and frequency selective surface

2020 ◽  
Vol 20 (1) ◽  
pp. 281
Author(s):  
Siti Adlina Md Ali ◽  
Maisarah Abu ◽  
Siti Normi Zabri
Keyword(s):  
Human Body ◽  
High Frequency ◽  
Return Loss ◽  
Performance Enhancement ◽  
Frequency Selective Surface ◽  
Antenna Gain ◽  
Magnetic Conductor ◽  
Artificial Magnetic Conductor ◽  
Directive Antenna ◽  
Frequency Selective

<span>This paper presents the performance enhancement of the trapezoid antenna with Artificial Magnetic Conductor (AMC) and Frequency Selective Surface (FSS). The antenna, AMC and FSS structures are printed on 0.254 mm of RT/Duroid 5880 high frequency laminate. The performances of the antenna with and without AMC and FSS were evaluated. Three cases are analyzed; antenna alone, antenna with AMC and antenna with AMC-FSS. The 2x3 arrays of AMC and AMC-FSS were positioned at the back of the antenna with 6 mm air gap. The antenna alone works at 12 GHz, and shifted to 12.35 GHz and 12.33 GHz for case 2 and case 3, respectively. Despite the shift in the resonance, the antenna is still operating well at 12 GHz with a return loss            –16.70 dB for case 2 and–16.84 dB for case 3. Case 3 effectively enhanced the antenna gain from 4.43 dB to 6.74 dB and contributed to a directive antenna. Moreover, case 3 also successfully reduced the radiation of the antenna that penetrates into human body as the antenna is applied for on-body applications. </span>

Dual-Band Band-Pass Frequency Selective Surface Based on the Matryoshka Geometry with Angular Stability and Polarization Independence

2020 ◽  
Author(s):  
Alfredo Gomes Neto ◽  
Jefferson Costa e Silva ◽  
Alexandre Jean Rene Serres ◽  
Marina de Oliveira Alencar ◽  
Ianes Barbosa Grecia Coutinho ◽  
...  
Keyword(s):  
Frequency Selective Surface ◽  
Angular Stability ◽  
Dual Band ◽  
Band Pass ◽  
Frequency Selective
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