期刊
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
卷 60, 期 4, 页码 2109-2113出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TAP.2012.2186251
关键词
Frequency selective surfaces; periodic structures; radomes; spatial filters
资金
- Air Force Office of Scientific Research [FA9550-11-1-0050]
- National Science Foundation [ECCS-1052628, ECCS-1101146]
- Directorate For Engineering
- Div Of Electrical, Commun & Cyber Sys [1101146] Funding Source: National Science Foundation
We present the design and analysis of a frequency selective surface (FSS) capable of providing a third-order bandpass response. The transfer function of the proposed FSS has a transmission null, the frequency of which can be tuned to suppress strong interference signals with frequencies close to or within the main transmission band. The principles of operation of the device are presented along with an approximate analytical procedure for synthesizing the desired FSS response. Two prototypes are fabricated and characterized using a free-space measurement setup and the FSS's different modes of operation are experimentally demonstrated. Finally, the tuning performance of the FSS's transmission null is experimentally demonstrated in a WR-90 waveguide environment.
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