Antenna Radiation Efficiency Estimation From Backscattering Measurement Performed Within Reverberation Chambers

被引：4
|
作者：
Krouka, Wafa [1 ]
Sarrazin, Francois [1 ]
de Rosny, Julien [2 ]
Labdouni, Adnane [1 ]
Richalot, Elodie [1 ]
机构：
[1] Univ Gustave Eiffel, CNRS, ESYCOM Lab, F-77454 Marne La Vallee, France
[2] PSL Univ, ESPCI Paris, CNRS, Inst Langevin, F-75006 Paris, France
来源：
IEEE TRANSACTIONS ON ELECTROMAGNETIC COMPATIBILITY | 2022年 / 64卷 / 02期
关键词：
Antenna radiation efficiency; backscattering measurement; contactless measurement; quality factor; reverberation chamber (RC); FEED CABLES; GAIN; REDUCTION; IMPEDANCE;
D O I：
10.1109/TEMC.2021.3129912
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
This article presents a contactless measurement method for antenna radiation efficiency estimation within reverberation chambers (RCs). This method does not require to connect any analyzer to the antenna under test (AUT). The AUT radiation efficiency is obtained from the differential measurement of the RC composite Q-factor estimated for two AUT load conditions, namely an open circuit and a 50 Omega load. Remotely controlled RF switches are used in order to keep the setup identical for both measurements. The method is experimentally validated in two RCs of different volumes (1 m(3) and 19 m(3)) with a wideband patch antenna in the 1.8 GHz to 2.8 GHz frequency range. The estimated efficiency is found to be in a very good agreement with the one obtained through a conventional invasive RC measurement technique. This new method is suitable for miniature and buried antenna characterization without access to its port.
引用
收藏
页码：267 / 274
页数：8
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