Research on High Fidelity Antenna for UHF Partial Discharge Detection
An ultra-wideband elliptical slot antenna for UHF partial discharge detection is proposed.The antenna has the characteristics of high time domain fidelity,small size and simple feeding.The test results show that the return loss of the antenna in the frequency band of 300～1500 MHz is lower than-10 dB,and the average equivalent height is 15.7 mm,which satisfies the index of the partial discharge detection antenna.The time domain waveform fidelity is simulated and analyzed by CST Microwave Studio software to provide reference for the placement of antenna in partial discharge detection.The research shows that the fidelities of the elliptical slot antenna at some angles exceed 0.9,which can better restore the partial discharge waveform,and the smaller size of the antenna can better adapt to partial discharge on-site detection.
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维普
