A novel compact ka-band high-rejection diplexer based on substrate integrated waveguide

Author

He, Junxia ; Gao, Kuandong ; Shao, Zhenhai

Author_Institution

Univ. of Electron. Sci. & Technol. of China, Chengdu, China

fYear

2012

fDate

19-21 Oct. 2012

Firstpage

193

Lastpage

197

Abstract

In this paper, a compact diplexer using substrate integrated waveguide (SIW) resonators is introduced. The diplexer consists of two filters and a circulator. The diplexer channels are 4% and 5% relative bandwidth at 32GHz and 33GHz, respectively. The filters are based on SIW resonators, which have higher Q values. This paper also analyzed the factors which affect the Q value of resonators, and describes the designing procedure of Generalized Chebyshev filters, which used in this paper. The circulator also is on account of SIW. It uses inductive windows to increase bandwidth. At last, the paper gives the diplexer´s simulation and measure results. And two results are similar with each other.

Keywords

Chebyshev filters; microwave resonators; millimetre wave circulators; multiplexing equipment; substrate integrated waveguides; SIW resonator; bandwidth 32 GHz; bandwidth 33 GHz; circulator; compact ka-band high-rejection diplexer; diplexer channel; diplexer simulation; generalized Chebyshev filter; inductive window; substrate integrated waveguide resonator; Band pass filters; Cavity resonators; Circulators; Filtering theory; Microwave filters; Resonator filters; Substrates; Diplexer; High selective bandpass filters; circulators; substrate integrated waveguide;

fLanguage

English

Publisher

ieee

Conference_Titel

Computational Problem-Solving (ICCP), 2012 International Conference on

Conference_Location

Leshan

Print_ISBN

978-1-4673-1696-5

Electronic_ISBN

978-1-4673-1695-8

Type

conf

DOI

10.1109/ICCPS.2012.6384320

Filename

6384320