Analysis and Design of a High-Transmittance Performance for Varactor-Tunable Frequency-Selective Surface

被引：29

作者：

Guo, Min ^{[1
]}

Zheng, Yuejun ^{[1
]}

Chen, Qiang ^{[1
]}

Ding, Liang ^{[1
]}

Sang, Di ^{[1
]}

Yuan, Fang ^{[1
]}

Guo, Tiantian ^{[1
]}

Fu, Yunqi ^{[1
]}

机构：

[1] Natl Univ Def Technol, Coll Elect Sci & Technol, Changsha 410073, Peoples R China

来源：

IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION | 2021年 / 69卷 / 08期

基金：

中国国家自然科学基金;

关键词：

High-transmittance performance; insertion loss reduction; square-slot frequency-selective surface (FSS); varactor-tunable FSS; LOW-PROFILE; SQUARE-LOOP; ANTENNA; REALIZATION; ABSORBER; FSS;

D O I：

10.1109/TAP.2020.3045517

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

This article aims to achieve a high-transmittance varactor-tunable frequency-selective surface (FSS). First, the impedance condition for the high-transmittance FSS is deduced. Next, a square-slot FSS loaded with varactors, which owns the empirical formulas for equivalent circuit parameter extraction, is selected to demonstrate the proposed method for realizing a high-transmittance varactor-tunable FSS. Several conclusions are deduced and verified through the full-wave simulation. To illustrate the effectiveness of the proposed method, two FSSs operating at the same frequency are designed. The simulation and measurement results show that the FSS with the higher transmission rate follows the deduced conclusions. Note that the transmission rate of the varactor-tunable FSS is more than 77.8% (S-21=1.09 dB) from 4.84 to 5.9 GHz when the bias voltage applied to the varactors is tuned from 5 to 20 V. Compared to the reported tunable FSSs, the varactor-tunable FSS achieved in this article obtains the highest transmission rate over the tunable transmission band.

引用

页码：4623 / 4632

页数：10

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