Title :
Thin wave absorber composed of mushroom structures
Author :
Shinohara, Junichi ; Michishita, Naobumi ; Yamada, Yoshihide ; Hada, Hideki
Author_Institution :
Dept. of Electr. & Electron. Eng., Nat. Defense Acad., Yokosuka, Japan
Abstract :
This paper presents a thin wave absorber composed of mushroom structures. First, a dispersion diagram of the unit cell is shown. The thin wave absorber composed of mushroom structure can reduce RCS at two frequencies at oblique incident angles. The patch structures without via can also reduce RCS at lower frequency. The electric field distributions and the bistatic RCS pattern are shown.
Keywords :
dispersion (wave); electric fields; electromagnetic wave absorption; radar antennas; radar cross-sections; bistatic RCS pattern; dispersion diagram; electric field distribution; mushroom structure; oblique incident angle; patch structure; thin wave absorber; unit cell; Dispersion; Electric fields; Interference; Periodic structures; Radio communication; Resonant frequency; Surface waves;
Conference_Titel :
Antennas and Propagation Society International Symposium (APSURSI), 2012 IEEE
Conference_Location :
Chicago, IL
Print_ISBN :
978-1-4673-0461-0
DOI :
10.1109/APS.2012.6348043
