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Microstrip four-port circulator using a ferrite coupled line section

Abstract

This paper describes an alternative configuration of a four-port circulator realized in a microstrip ferrite coupled line technology. The proposed fully planar device employs two three-port circulators consisting of a ferrite coupled line junction and T junction. Both circulators are connected through the same arm, hence, the problem of anti-parallel magnetization met in this type of circulators is avoided without the increase of the device width. The simulated and experimental results check feasibility of such device. The constructed four-port ferrite coupled line circulator is applied as a double isolator operating in the frequency band from 9 to 18 GHz, with average insertion losses -3dB source and isolation better than -20dB source.

Citations

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Details

Category:
Articles
Type:
artykuł w czasopiśmie wyróżnionym w JCR
Published in:
AEU-INTERNATIONAL JOURNAL OF ELECTRONICS AND COMMUNICATIONS no. 63, pages 801 - 808,
ISSN: 1434-8411
Language:
English
Publication year:
2009
Bibliographic description:
Marynowski W., Kusiek A., Mazur J.: Microstrip four-port circulator using a ferrite coupled line section// AEU-INTERNATIONAL JOURNAL OF ELECTRONICS AND COMMUNICATIONS. -Vol. 63, nr. iss. 9 September. (2009), s.801-808
DOI:
Digital Object Identifier (open in new tab) 10.1016/j.aeue.2008.06.008
Verified by:
Gdańsk University of Technology

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