Diplexer using a circulator and interchangeable filters

Author

Saavedra, Carlos E.

Author_Institution

Dept. of Electr. & Comput. Eng., Queen´´s Univ., Kingston, ON

fYear

2008

fDate

28-30 April 2008

Firstpage

1

Lastpage

5

Abstract

A microwave diplexer is proposed that uses a passive or active three-port clockwise circulator device. The use of a circulator in place of a manifold structure in the diplexer means that the filters can be tuned or even exchanged without the need to modify the manifold. In the experimental realization of this diplexer, two edge-coupled microstrip filters were used and the two passbands were at 2.85 GHz and 3.15 GHz. An analytic analysis of the isolation between the output ports of the diplexer is presented that agrees well with measurements.

Keywords

UHF filters; microstrip filters; microwave circulators; microwave filters; multiplexing equipment; edge-coupled microstrip filters; frequency 2.85 GHz; frequency 3.15 GHz; interchangeable filters; microwave diplexer; three-port clockwise circulator; Band pass filters; Circuit analysis; Circuits and systems; Clocks; Frequency; Integrated circuit interconnections; Microstrip filters; Microwave filters; Multiprocessor interconnection networks; Passband;

fLanguage

English

Publisher

ieee

Conference_Titel

Devices, Circuits and Systems, 2008. ICCDCS 2008. 7th International Caribbean Conference on

Conference_Location

Cancun

Print_ISBN

978-1-4244-1956-2

Electronic_ISBN

978-1-4244-1957-9

Type

conf

DOI

10.1109/ICCDCS.2008.4542631

Filename

4542631