Title :
Novel 4 loops coupler in microwave cavity measurement of permittivity
Author :
Hai Zhang ; Baoqing Zeng ; Lei Ao ; Nannan Li ; Yong Fang ; Jing Guo ; Jingang Han
Author_Institution :
Nat. Key Lab. of Sci. & Technol. on Vacuum Electron., Univ. of Electron. Sci. & Technol. of China, Chengdu, China
Abstract :
Electromagnetic coupling effects on a novel loop coupler in a TE011 circular cavity are studied theoretically and experimentally. This novel 4 loops coupler is developed for avoiding and suppressing the spurious modes in the TE011 circular cavity of the microwave permittivity measurement system. The operating principles and impedance of the novel 4 loops coupler are investigated. This method has the advantage of simple setting of the apparatus and fast tuning of the system. The experimental results are compliant with simulations.
Keywords :
cavity resonators; microwave measurement; permittivity measurement; waveguide couplers; 4 loops coupler; TE011 circular cavity; electromagnetic coupling effects; microwave permittivity measurement system; tuning of the system; Cavity resonators; Couplers; Impedance; Loss measurement; Microwave measurement; Microwave theory and techniques; Transmission line measurements; Cavity; coupler; loop; resonator;
Conference_Titel :
Wireless Symposium (IWS), 2013 IEEE International
Conference_Location :
Beijing
DOI :
10.1109/IEEE-IWS.2013.6616803
