Low cost millimeter wave duplexer design using mixed mode-matching and integral contour methods

Author

Ghanadi, Mehdi ; Henke, Heino ; Banai, Ali ; Zamani, K.

Author_Institution

Tech. Univ. of Berlin, Berlin, Germany

fYear

2009

fDate

29-31 Dec. 2009

Firstpage

10

Lastpage

14

Abstract

A millimeter wave H-plane duplexer using E-plane filters has been designed. T-junction is used for connecting the channel filters compensated by cylindrical post and analyzed by integral contour method. Moreover the junction discontinuity effects have been taken into account. The combination of filters and compensated T-junction allows for low-cost manufacturing. The E-plane filters are analyzed separately, by mode matching method. The scattering parameters of the combination of filters and T-junction are obtained. The diameter and position of the compensating rod and length of T arms are optimized to achieve desired performance. This procedure saves time and memory in computations. The 38 GHz duplexer has been built and tested. The theory has been verified by measurement.

Keywords

S-parameters; microwave filters; millimetre wave devices; mode matching; multiplexing equipment; waveguide components; waveguide junctions; E-plane filter; compensated T-junction; frequency 38 GHz; integral contour methods; millimeter wave duplexer design; mixed mode matching; mode matching method; scattering parameters; Band pass filters; Costs; Filtering theory; Manufacturing; Matched filters; Millimeter wave technology; Mode matching methods; Scattering parameters; Submillimeter wave filters; Submillimeter wave technology; Duplexer; E-pale Filter; Integral Counter; Mode Matching;

fLanguage

English

Publisher

ieee

Conference_Titel

Millimeter-Wave and Terahertz Technologies (MMWaTT), 2009 First Conference on

Conference_Location

Tehran

Print_ISBN

978-1-4244-6807-2

Type

conf

DOI

10.1109/MMWATT.2009.5450466

Filename

5450466