Title :
RCS reduction of a composite AMC structure
Author :
Yueh-Lin Tsai ; Ruey-Bing Hwang
Author_Institution :
Inst. of Commun. Eng., Nat. Chiao-Tung Univ., Hsinchu, Taiwan
Abstract :
We studied the RCS reduction characteristics of a checkerboard structure configured with two different AMC unit cells with 180° reflection phase difference near its resonance frequency. A simple array factor formula is adopted to show the philosophy of the physical mechanism. Both the numerical and experimental results have been achieved and compared. Good agreement from results was obtained and the ability for RCS reduction rate of this composite AMC structure is over 10dB within 16-25GHz.
Keywords :
radar cross-sections; AMC unit cells; RCS reduction characteristics; array factor formula; checkerboard structure; composite AMC structure; reflection phase difference; resonance frequency; Broadband antennas; Broadband communication; Frequency selective surfaces; Microwave antennas; Numerical simulation; Reflection; Surface impedance;
Conference_Titel :
Electromagnetics, Applications and Student Innovation (iWEM), 2011 IEEE International Workshop on
Conference_Location :
Taipei
Print_ISBN :
978-1-61284-462-6
Electronic_ISBN :
978-1-61284-461-9
DOI :
10.1109/iWEM.2011.6021472
