Mode Matching design of substrate integrated waveguide diplexers

Author

Kordiboroujeni, Zamzam ; Bornemann, Jens

Author_Institution

Dept. of Electr. & Comput. Eng., Univ. of Victoria, Victoria, BC, Canada

fYear

2013

fDate

2-7 June 2013

Firstpage

1

Lastpage

3

Abstract

A K-band diplexer based on Substrate Integrated Waveguide (SIW) technology is presented. The diplexer has input and output ports on opposite sides and bandwidths of 2.75 percent and 2.11 percent at 18.15 GHz and 19 GHz, respectively. The diplexer is designed using an efficient Mode-Matching Technique (MMT), verified by CST and prototyped. Measured results are in good agreement with theory and simulation results and show good isolation between the channels. Attenuation towards higher frequencies is better than 40 dB up to 25 GHz. The measured insertion losses are 3.05 dB in the lower band and 2.3 dB in the upper band.

Keywords

integrated circuit design; microwave integrated circuits; mode matching; multiplexing equipment; substrate integrated waveguides; CST; K-band diplexer; MMT; SIW technology; diplexer design; frequency 18.15 GHz; frequency 19 GHz; input ports; loss 3.05 dB; mode matching design; mode-matching technique; output ports; substrate integrated waveguide diplexers; Electromagnetic waveguides; Filtering theory; Microstrip; Microwave filters; Resonator filters; Substrates; Multiplexing; microwave filters; microwave integrated circuits; microwave measurements; numerical simulation; waveguide junctions;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Symposium Digest (IMS), 2013 IEEE MTT-S International

Conference_Location

Seattle, WA

ISSN

0149-645X

Print_ISBN

978-1-4673-6177-4

Type

conf

DOI

10.1109/MWSYM.2013.6697609

Filename

6697609