Computer-aided design and optimisation of broadband stripline circulators for 18-30 GHz and 18-40 GHz

Author

Hickson, M.T. ; Davis, L.E. ; Paul, D.K. ; Sillers, D.B.

Author_Institution

Dept. of Electr. Eng. & Electron., Manchester Univ., UK

fYear

1991

fDate

10-14 July 1991

Firstpage

961

Abstract

Computer programs have been written for the design and optimization of tracking stripline circulators, and used to predict the performance of broadband designs, 18-30 GHz and 18-40 GHz, using ferrites with 4 pi M/sup s/ approximately=5000 G. Initial results show agreement between predicted and experimental performance, and an undesirable insertion-loss spike has been identified as due to inherent mismatch associated with circulator modes. The design and location of matching transformers are discussed, and it is noted that the programs can be used with commercial design software.<>

Keywords

circulators (microwave); electronic engineering computing; ferrite devices; strip line components; 18 to 40 GHz; CAD; broadband stripline circulators; circulator modes; design software; ferrites; inherent mismatch; insertion-loss spike; matching transformers; optimisation; Circulators; Design automation; Design optimization; Dielectrics; Ferrites; Frequency; Scattering parameters; Software design; Stripline; Transformers;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Symposium Digest, 1991., IEEE MTT-S International

Conference_Location

Boston, MA, USA

ISSN

0149-645X

Print_ISBN

0-87942-591-1

Type

conf

DOI

10.1109/MWSYM.1991.147169

Filename

147169