Abstract
The design of a dual-band patch antenna for a nonlinear radar operating at combinational frequencies has been developed. The antenna has a rectangular emitter surrounded by dielectric layers over a metal screen. The emitter has a U-shaped slot. The results of simulation and measurements of the antenna sample parameters are presented. The antenna is matched with the feeder at the frequencies near 1.3 and 1.6 GHz, and in the range beyond these frequencies the antenna operates as a notch-filter. The antenna has a unidirectional pattern. The radiation maximum is directed perpendicular to the plane of the antenna.
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