An Electronically Controllable Method for Radar Cross Section Reduction for a Microstrip Antenna

Abstract

Abstract-PIN diodes are used to electronically switch a rectangular microstrip antenna between the optimal radiation state and the low radar cross section (RCS) state in this paper. A useful loading circuit is proposed. The circuit is connected between the patch and the ground plane of the antenna at each loading position. The loading positions of the circuit are determined by studying magnitude distributions of the induced electric field and analyzing statistically how many times that the maximum electric field occurs in each area for each discussed incident angle. PIN diodes are equivalent to capacitances and resistances when diodes are reverse-biased and forward-biased, respectively. When the antenna is not in service and excited by an incident plane wave, obvious RCS reduction is realized. In addition, the radiation performances are well maintained when the antenna is in service for transmitting or receiving signals.

Application of Bionics in Frequency Selective Surface Design and Antenna Radar Cross Section Reduction

“…Antennas significantly contribute to the overall RCS signature of target objects such as naval ships and airborne vehicles [11][12][13][14][15][16]. The goal of reducing antenna RCS in this section is accomplished by replacing the solid ground plane of an antenna array with the proposed bionic FSS.…”

Efficient Classification of Low-Resolution Range Profiles of Automobiles Using a Combination of Useful Features

“…Among several radar signatures, the range profile (RP) shows the unique one dimensional distribution of the radar cross-section [2][3][4][5][6][7][8][9] of the automobile and can be effectively used for classification of automobiles which can contribute to anti-collision, lane-change, and automobile control regardless of weather and day-night conditions [10]. RP can also provide two-dimensional radar image of automobiles if the synthetic aperture radar (SAR) [11][12][13][14][15][16][17][18], the inverse SAR [19] and the jet engine modulation [20] techniques are applied.…”