采用可重构结构型吸波材料的天线RCS减缩方法.pdfVIP

A pr V ol N o doi : ./ j .issn . . . . dB dB dB G Hz dB T N A Antenna radar cross section reduction by a reconfigurable radar absorbing structure WA N G Fuw e i , , G UO L ix in , GON G S hux i ( . Science and T echnology on A ntennas and M icrow ave Lab . , Xidian U niv . , Xi an , China ; . School of Phy sics and Optoelectronic Engineering , Xidian U niv . , Xi an , China) Abstract : An active reconfigurable Radar absorbing structure using a pin diode for the radar cross section ( RCS) reduction of the antenna reflector is proposed , w hich is able to be sw itched betw een metal reflector w ith O FFstate diodes and absorber w ith O N state diodes . T he reflection coefficient of the RAS reflector is able to be sw itched betw een less than .dB w ith O FFstate diodes and more than dB w ith O N state diodes around G Hz . T he RAS reflector w ith O N state diodes is applied to a dipole antenna reflector and gives radiation performance equivalent to that of the dipole w ith a metal reflector . T he RAS reflector w ith O F