Design of Polarization-Insensitive Frequency Selective Rasorber
2022 IEEE 10TH ASIA-PACIFIC CONFERENCE ON ANTENNAS AND PROPAGATION, APCAP(2022)
摘要
In this paper, an frequency selective rasorber (FSR) is designed, which is composed of a lossy impedance layer and a loss-less frequency selective surface layer. The two layers are separated by an air layer. Through theoretical analysis of the equivalent circuit, it has both a wide transmission band and an absorbing band. The simulation results show that the -1dB transmission band is 10.5GHz to 12.6GHz, the relative band-width is 18.2%, and the absorbing band(S-11, S-21 <-10dB) is 3.7GHz to 7.1GHz, the relative bandwidth is 63%. And it has polarization insensitivity and certain angle stability. The designed FSR can be used in radar application.
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关键词
FSR,polarization insensitive
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