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A new ultra-wideband microstrip house-shaped patch antenna for UHF communications is proposed in this paper. The new ultra-wideband antenna has a 10-dB bandwidth of 104%, from 0.62 to 2.13 GHz. Within the operation bandwidth, the average antenna gain is 3.11 dBi. The design parameters and the performances of the antenna are presented.
An ultrawideband (UWB) annual ring antenna is presented in this letter. The annual ring antenna has a return loss better than 10 dB from 2.8 to 12.3 GHz. It has an average gain of 2.93 dBi and has a maximum gain of 5 dBi at 7 GHz. The antenna radiation patterns are stable within its operation band. The parameters determining the antenna wideband characteristic are discussed and measured results are...
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