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Automatic Test System of the Antenna Characteristic

Automatic Test System of the Antenna Characteristic

引用

2002 3rd International Symposium on Electromagnetic Compatibility

作者： WU Ran WEN Yinghong ZHOU Kesheng EMC Research section Northern JiaoTong University

ISBN: (纸本)0780372778

＜正＞Antenna is a component used to transmit or receive electric wave in wireless communicating *** the transmitting terminal its primary function is to change electrical current of high frequency transmitted by transmitter or transmission line into wireless wave and transmit it into space;at the receiving terminal it change the energy of the wireless wave into electrical current. Then,we can regard antenna as transforming equipment between conducting waves and radiate *** has an important influence on normal working of wireless communication,broadcast,orientation and telemetry *** has influence on EMC as important as which it has on *** EMC emission measurements,EMI testing and EMS testing included;antenna acts as the receiving component and the transmitting component *** is the important equipment that receiving the energy of radiation and it also is the important equipment that sends electromagnetic signal to the object that being ***, if there is no antenna,we cannot go on our EMC testing. Any antenna has some characteristic parameters,which can be used to estimate this antenna’s *** characteristic parameters include antennas impedance, directional property,antenna gain,posture,and antenna’s polarization characteristic,which determine an antenna is fine and the area it can be used ***,these characteristic parameters have a great influence on the measuring result and some area it used in. As every worker of EMC testing known,it is very difficult that measure an antenna’s characteristic parameters,and some of which are even not measured by the current *** people try to measure them,but it takes much time and labor testing with conventional testing method（*** by hand）.What’s more,it is easily to bring testing *** with the high development of computer and the emergence of advanced testing equipments,it is necessary and possible to design a convenient automatic testin

关键词： transmitting antennas receiving antennas antenna testing automatic test equipment microstrip antennas automatic test system electric wave wireless communicating system transmitting terminal receiving terminal transforming equipment EMC EMS EMI receiving component transmitting component impedance directional property antenna gain posture polarization characteristic

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