Optimisation and comparison of three diplexers based on a new slot to microstrip junction

Author

Gouget, P. ; Duchamp, G. ; Pistre, J.

Author_Institution

Lab. IXL, CNRS, Talence, France

Volume

2

fYear

2003

Firstpage

1231

Abstract

In this paper, a microstrip to slotline transition using different quarter wavelength stubs is proposed and defined as inhomogeneous. The bandwidth of each stub is separately studied and the microstrip to slotline junction is considered as a band-pass filter controlled by design rules. The DOE optimisation and comparison of three different diplexers using this type of junction is achieved by using new design rules implemented in a new CAD tool. Finally, simulations and measurements confirm the theoretical approach of this study.

Keywords

band-pass filters; circuit CAD; circuit optimisation; microstrip circuits; microstrip discontinuities; microstrip transitions; multiplexing equipment; slot line components; slot lines; 12.25 GHz; 2 GHz; 9.75 GHz; CAD tool; DOE optimisation; Taguchi method; X-band diplexers; band-pass filter; design rules; diplexers; microstrip to slotline transition; multilayer circuit synthesis; optimisation; quarter wavelength stubs; simulations; slot ring diplexer; slot to microstrip junction; stub bandwidth; transmission parameter; Band pass filters; Bandwidth; Design automation; Design optimization; Frequency; Impedance; Microstrip filters; Nonhomogeneous media; Slotline; US Department of Energy;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Symposium Digest, 2003 IEEE MTT-S International

Conference_Location

Philadelphia, PA, USA

ISSN

0149-645X

Print_ISBN

0-7803-7695-1

Type

conf

DOI

10.1109/MWSYM.2003.1212591

Filename

1212591