Fractal Antenna of 0.4~1 GHz for UHF Monitoring of Partial Discharge in Electrical EquipmentChinese Full Text
YAO Chenguo;QIAO Panpan;CHEN Pan;CHEN Yu;College of Electrical Engineering,Chongqing University;Luoyang Power Supply Company;
Abstract: For detecting the ultra-high frequency（UHF） signals generated from electrical equipment partial discharges（PDs）, we designed a fractal antenna that integrates the fractal technology and the coplanar waveguide technology to achieve ultra-wide-band characteristics. Meanwhile, we optimized the geometrical parameters of the antenna through simulation. Moreover, we constructed a test platform to test the practical application of the antenna.The simulation results indicate that this antenna has a wide frequency band of 0.4~1 GHz in terms of the voltage standing wave ratio（VSWR） smaller than 2, as well as great directivity and omnidirectional radiation feature. Besides, the antenna has a high gain, about 1.5 dB, and a small size with thickness of 1 mm. The test results show that the antenna has high gain and high noise-signal ratio, and it is effective in collecting PD UHF signals from 0.4 GHz to 1 GHz. Hence the proposed antenna is quite promising for PD on-line detection applications.
- DOI：
10.13336/j.1003-6520.hve.2014.08.005
- Series：
- Subject：
- Classification Code：
TM855;TN820
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