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.

fYear

2008

fDate

15-20 June 2008

Firstpage

971

Lastpage

974

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Symposium Digest, 2008 IEEE MTT-S International

Conference_Location

Atlanta, GA

ISSN

0149-645X

Print_ISBN

978-1-4244-1780-3

Electronic_ISBN

0149-645X

Type

conf

DOI

10.1109/MWSYM.2008.4632996

Filename

4632996