| On the basis of the methods for analyzing the radar cross section (RCS) of microstrip antenna, various ways for microstrip antenna RCS reduction are discussed. When antenna RCS is reduced, its radiation performance should be maintained by all means, especially the gain and bandwidth.Firstly, the method of cutting rectangular slots on microstrip antenna patch and ground plane for RCS reduction is simulated, and some rules are summarized. Secondly, the new application of cutting cross slots on patch for RCS reduction is proposed. It is verified by the simulation results that both cutting slots on microstrip antenna patch and ground plane are feasible methods for reducing RCS. Finally, the application of two miniaturization methods for microstrip antenna RCS reduction is studied. It is also verified by the result that RCS can be reduced to a certainty using the miniaturization methods with lower effect on the performance of antennas radiation. |
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