Journal
IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS
Volume 7, Issue -, Pages 473-476Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/LAWP.2008.2001548
Keywords
Electromagnetic band-gap (EBG); RAM; radar cross section (RCS); ridged waveguide slot antenna array
Funding
- Natural Science Foundation of China [60871069]
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This letter investigates the application of EBG radar absorbing material (RAM) to asymmetric ridged waveguide slot antenna array to reduce its backward RCS. The EBG RAM is based on the mushroom-like EBG structure loaded with lumped resistances. A ridged waveguide slot antenna array with 4 x 10 slot elements was designed and built, part of the metal ground plane of the array is replaced with this EBG RAM. The measured results show that performance of the antenna array is preserved when EBG RAM is used. At working frequency the backward RCS of antenna array with EBG RAM has dramatically reduced than that of the common antenna array.
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