Title :
Intermodulation distortion evaluation of ferrite element by two-tone method
Author :
Miura, Taro ; Davis, Lionel E.
Author_Institution :
Electromagnetics Centre, School of Electrical and Electronic Engineering, University of Manchester, M60 1QD, U. K.
Abstract :
A method to evaluate the intermodulation distortion (IMD) of a ferrite element by the two-tone method is proposed in which a dual mode resonator enables an intense RF magnetic field to be applied to the ferrite. A test fixture operating at frequencies around 2 GHz was designed and assembled based on this concept. The IMD data obtained from the test fixture are presented and they contain new features of shape dependency. It is anticipated that these investigations will lead to a significant reduction in IMD in ferrite circulators as well as an increase in power handling capability.
Keywords :
cavity resonators; ferrites; intermodulation distortion; magnetic fields; RF magnetic fields; dual mode resonator; ferrite element; frequency 2 GHz; intermodulation distortion evaluation; power handling capability; shape dependency; two-tone method; Circulators; Ferrites; Fixtures; Intermodulation distortion; Magnetic fields; Multiaccess communication; Power amplifiers; Radio frequency; Shape; Testing; Circulator; Ferrites; Intermodulation distortion; Nonlinearities; Resonators; Shape;
Conference_Titel :
Microwave Symposium Digest, 2008 IEEE MTT-S International
Conference_Location :
Atlanta, GA
Print_ISBN :
978-1-4244-1780-3
Electronic_ISBN :
0149-645X
DOI :
10.1109/MWSYM.2008.4632996
