A Low Radar Cross Section and Low Profile Antenna Co-Designed With Absorbent Frequency Selective Radome

作者：Mei, Peng; Lin, Xian Qi^*; Yu, Jia Wei; Zhang, Peng Cheng; Boukarkar, Abdelheq

来源：IEEE Transactions on Antennas and Propagation, 2018, 66(1): 409-413.

DOI：10.1109/TAP.2017.2767645

• Absorbent frequency selective radome (AFSR)
• co-designed
• frequency selective surface
• low radar cross section (RCS) antenna

A low radar cross section (RCS) and low profile antenna co-designed with absorbent frequency selective radome (AFSR) is investigated. A pair of circular slot resonators is embedded on surface of the AFSR to realize a transmission window in the vertical polarization, while the wide absorption band is still maintained in the horizontal polarization. When a patch antenna is etched within the AFSR, where the metal grounds of the patch antenna and AFSR are co-used, the co-designed antenna with low RCS and low profile is thus realized. For demonstration, an AFSR is designed with its transmission window has a minimal insertion loss of 0.45 dB at 8.9 GHz, and two separate absorption bands (a lower absorption band from 4.8 to 7.5 GHz and an upper absorption band from 10 to 13 GHz) in the vertical polarization, a wide absorption band (from 4.5 to 12.5 GHz) in the horizontal polarization. A patch antenna etched within the AFSR is optimized to operate at 8.9 GHz, then it is simulated and fabricated. The measured results demonstrate that the proposed antenna not only has good radiation patterns, but also obtains significant RCS reduction.

• 出版日期2018-1
• 单位电子科技大学