Varactor-tunable frequency selective surface with an embedded bias network

A new technique for designing a varactor-tunable frequency selective surface （FSS） with an embedded bias network is proposed and experimentally verified. The proposed FSS is based on a square-ring slot FSS. The frequency tuning is achieved by inserting varactor diodes between the square mesh and eac...

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Bibliographic Details
Published in:Chinese physics B 2013-09, Vol.22 (9), p.395-398
Main Author: 林宝勤 屈绍波 童创明 周航 张衡阳 李伟
Format: Article
Language:English
Subjects:
Bias
Capacitors
Computer simulation
Finite element method
Frequency selective surfaces
Networks
Tuning
Varactor diodes
偏置
变容二极管
嵌入式
正方形网格
网络设计
调谐频率
面具
频率选择表面
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Summary:A new technique for designing a varactor-tunable frequency selective surface （FSS） with an embedded bias network is proposed and experimentally verified. The proposed FSS is based on a square-ring slot FSS. The frequency tuning is achieved by inserting varactor diodes between the square mesh and each unattached square patch. The square mesh is divided into two parts for biasing the varactor diodes. Full-wave numerical simulations show that a wide tuning range can be achieved by changing the capacitances of these loaded varactors. Two homo-type samples using fixed lumped capacitors are fabricated and measured using a standard waveguide measurement setup. Excellent agreement between the measured and simulated results is demonstrated.
ISSN:1674-1056
2058-3834
1741-4199
DOI:10.1088/1674-1056/22/9/094103