Substrate-Integrated-Waveguide (SIW) Single-Pole-Double-Throw (SPDT) Switch for X-Band Applications

Author

Inseop Lim ; Sungjoon Lim

Author_Institution

Sch. of Electr. & Electron. Eng., Chung-Ang Univ., Seoul, South Korea

Volume

24

Issue

8

fYear

2014

fDate

Aug. 2014

Firstpage

536

Lastpage

538

Abstract

A substrate-integrated-waveguide (SIW) single-pole double-throw (SPDT) switch is presented for X-band applications. Inductive posts with rectangular slots are embedded in the SIW to control the traveling EM wave. By adding PIN diodes on the top slots of the inductive posts, we achieved the ability to switch in the SIW technology; then, an SIW SPDT switch was designed. The proposed SPDT switch has a measured isolation (S31) of greater than 10 dB, isolation (S32) of greater than 15 dB, and an insertion loss (IL) of less than 2.55 dB, from 8.24-10.36 GHz.

Keywords

electromagnetic waves; microwave switches; p-i-n diodes; substrate integrated waveguides; SIW; SPDT switch; X-band applications; frequency 8.24 GHz to 10.36 GHz; inductive posts; insertion loss; isolation measurement; p-i-n diodes; single-pole-double-throw switch; substrate-integrated-waveguide; traveling EM wave; Insertion loss; Loss measurement; PIN photodiodes; Ports (Computers); Scattering parameters; Substrates; Switches; PIN diodes; X-band; single-pole-double-throw (SPDT) switch; substrate-integrated waveguide (SIW);

fLanguage

English

Journal_Title

Microwave and Wireless Components Letters, IEEE

Publisher

ieee

ISSN

1531-1309

Type

jour

DOI

10.1109/LMWC.2014.2321065

Filename

6824866