Side Lobe Reduction in an X-Band Horn Antenna Loaded by a Wire Medium

Side Lobe Reduction in an X-Band Horn Antenna Loaded by a Wire Medium

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Through electromagnetic simulation, the present work reports on a comparative study of the enhanced radiation properties of a standard X-band horn antenna loaded by a wire medium.Acting as an artificial dielectric princess polly dresses long sleeve the wire medium consists of an array of parallel metallic wires installed into the antenna with the wires oriented in the direction of the incident electric field.As compared with the properties of the empty antenna, the wire-medium antenna produces appreciable reduction in the side-lobe levels with an improvement of 10 dB at 8.87 GHz in the first side lobe.

For the wire-medium antenna, click here the E- and H-planes look similar, a property desired for precision radar and radiometric mapping systems.