Design of frequency selective rasorber with high in-band transmission and wideband absorption properties

Xianjun Sheng, Xiang Gao, Ning Liu
2019 IEICE Electronics Express  
A low-frequency transmissive frequency selective rasorber (FSR) with high in-band transmission and wideband absorption characteristics is proposed and experimentally demonstrated. It comprises the top resistive sheet and the bottom bandpass FSS. For resistive sheet, the tiny strip-type parallel LC resonator composed of square spiral inductor and its two-sided capacitors is inserted between the resistor-loaded crosses to achieve lower insertion loss (IL) by cutting off the lossy path. The
more » ... s FSS with high selectivity consists of Jerusalem cross slot array and capacitive metallic patches. An IL of 0.3 dB is obtained at 3.55 GHz, and the 10-dB-absorption band is 5.4-13.2 GHz. key words: Frequency selective rasorber; high in-band transmission; wideband absorption; insertion loss. Classification: Microwave and millimeter wave devices, circuits, and hardware
doi:10.1587/elex.16.20190545 fatcat:mjww27et5rhf5gi5gzhu2rgvsa