Open AccessDesign of low-radar cross section microstrip antenna based on metamaterial absorber
Author(s) -
Huanhuan Yang,
Xiangyu Cao,
Jun Gao,
Tao Liu,
Ma Jia-Jun,
Yao Xü,
Wenqiang Li
Publication year - 2013
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.62.064103
Subject(s) - radar cross section , optics , metamaterial absorber , materials science , antenna (radio) , microstrip , metamaterial , radome , microstrip antenna , optoelectronics , physics , tunable metamaterials , telecommunications , computer science , scattering
A metamaterial absorber with high absorptivity, wide incident angle and no surface ullage layer is designed and applied to microstrip antenna to reduce its radar cross section (RCS). The results show that the absorber can exhibit an absorption of 99.9% with a thickness of 0.3 mm. Compared with the conventional microstrip antenna, the proposed antenna has an RCS reduction of more than 3 dB in the boresight direction in the working frequency band, and the largest reduction can reach 16.7 dB, the monostatic and bistatic RCS reduction are over 3 dB from -30° to +30° and -90° to +90° respectively, while the radiation performance is kept, which proves that the absorber has an excellent absorptivity and could be applied to microstrip antennas to achieve in-band stealth.