Design of a tunable frequency selective surface absorber as a loaded receiving antenna array

作     者：林宝勤 赵尚弘 魏伟 达新宇 郑秋容 张衡阳 朱蒙 Lin Bao-Qin;Zhao Shang-Hong;Wei Wei;Da Xin-Yu;Zheng Qiu-Rong;Zhang Heng-Yang;Zhu Meng;Institute of Information and Navigation,Air Force Engineering University

作者机构：Institute of Information and NavigationAir Force Engineering University 

基　　金：Project supported by the National Natural Science Foundations of China (Grant Nos.61271250 and 61202490) 

出 版 物：《Chinese Physics B》 (中国物理B（英文版）)

年 卷 期：2014年第23卷第2期

页      码：252-256页

摘      要：An effective approach to designing a tunable electromagnetic absorber is presented and experimentally verified; it is based on an idea that an existing frequency selective surface （FSS） absorber is regarded as a loaded receiving antenna array. The existing absorber is effectively simplified by withdrawing half of the loaded resistors; a more compact one is obtained when lumped capacitors are introduced. Building on this, a varactor-tunable absorber with a proper bias network is proposed. Numerical simulations of one tunable absorber with 1.6 mm in thickness show that a wide tuning range from 3.05 GHz to 1.96 GHz is achieved by changing the capacitance of the loaded varactor from 0.5 pF to 5.0 pF. An experiment is carried out using a rectangular waveguide measurement setup and excellent agreement between the simulated and measured results is demonstrated.

主 题 词：electromagnetic absorber frequency selective surfaces (FSS) varactor 

学科分类：080904[080904] 0809[工学-计算机类] 08[工学] 0805[工学-能源动力学] 0704[理学-天文学类] 

核心收录：

D　O　I：10.1088/1674-1056/23/2/024201

馆 藏 号：203643052...