高压电器2017，Vol.53Issue(6)：118-123,6.DOI:10.13296/j.1001-1609.hva.2017.06.020
用于GIS局部放电的树状分形超宽带天线
Ultra-wideband Fractal Tree-shape Antenna for Partial Discharge in GIS
摘要
Abstract
An ultra-wideband (UWB)compact tree-shape antenna,which integrates the fractal technology,was designed for detecting the ultra-high frequency (UHF) signals generated from gas insulated switchgear (GIS) partial discharge (PD).The geometrical parameters of the antenna were optimized through computer simulation.The fractal antenna offers the return loss(S11) less than-10 dB and the bandwidth in the range of 0.5 to 1.5 GHz (relative bandwidth is 100％),and it has good great directivity and omnidirectional radiation feature.Besides,the antenna achieves a high gain,e.g.,the main lobe gain is about 2～4 dB in the range of 0.5～1 GHz,and it has a compact size of 20,160,1.6 mm.The antenna was tested on a discharge simulation platform in laboratory.The results show that the UHF PD monitoring system based on ultra-wideband fractal tree-shape antenna has strong anti-interference ability and can be applied to on-line PD monitoring applications.关键词
局部放电/分形天线/超高频(UHF)/气体绝缘开关设备(GIS)Key words
partial discharge(PD)/fractal antenna/ultra-high frequency(UHF)/gas insulated switchgear(GIS)引用本文复制引用
周钟,章晓春,郭碧翔,周水斌,雍明超,郭旭..用于GIS局部放电的树状分形超宽带天线[J].高压电器,2017,53(6):118-123,6.基金项目
国家电网公司科技项目(5212001600DL).Project Supported by Science and Technology Project of SGCC(5212001600DL). （5212001600DL）
