Abstract:A ridged horn antenna with metallic grid sidewalls is proposed and quantitatively analyzed. Simulated and measured results indicate that the operating band is from 1.0 to 20.0 GHz with the reflection coefficient less than −10 dB, and the relative bandwidth is as high as 180.95%. The gains are greater than 10 dBi in the frequency band of 2.6-20 GHz and greater than 16 dBi in the frequency band of 10-20 GHz with the gains fluctuation less than 1 dB. In the whole operating band, the radiation patterns radiate dir… Show more
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