Design of a compact ultra wideband 3 dB microstrip-slot coupler with high return losses and isolation

Bialkowski, Marek, E., Seman, Norhudah and Leong, Mook Seng (2009). Design of a compact ultra wideband 3 dB microstrip-slot coupler with high return losses and isolation. In: Joshua Le-Wei Li, Er Ping Li, Fujiang Lin and Lei Zhu, Proceedings of APMC 2009. Asia-Pacific Microwave Conference 2009, Singapore, (1334-1337). 7-10 December, 2009. doi:10.1109/APMC.2009.5384475


Author Bialkowski, Marek, E.
Seman, Norhudah
Leong, Mook Seng
Title of paper Design of a compact ultra wideband 3 dB microstrip-slot coupler with high return losses and isolation
Conference name Asia-Pacific Microwave Conference 2009
Conference location Singapore
Conference dates 7-10 December, 2009
Convener Mook Seng Leong; Lu Yilong
Proceedings title Proceedings of APMC 2009
Journal name Apmc: 2009 Asia Pacific Microwave Conference, Vols 1-5
Place of Publication Piscataway, NJ, U.S.A.
Publisher IEEE
Publication Year 2009
Sub-type Fully published paper
DOI 10.1109/APMC.2009.5384475
ISBN 9781424428021
Editor Joshua Le-Wei Li
Er Ping Li
Fujiang Lin
Lei Zhu
Volume 2009
Issue Article number 5384475
Start page 1334
End page 1337
Total pages 4
Collection year 2010
Language eng
Abstract/Summary The paper presents the configuration and design method of a compact ultra wideband 3 dB directional coupler with high return loss and isolation. The proposed device is formed by two elliptically shaped microstrip lines, which are broadside coupled through an elliptically shaped slot. In order to improve this coupler's return loss and isolation characteristics a small conducting disk of elliptical shape is included between the two microstrip lines. Results of the full electromagnetic simulations show that the coupler exhibits a coupling of 3.4 dB ± 1.2 dB accompanied by the isolation and return loss of more than 28 dB across the frequency band of 3.0 to 12.0 GHz. ©2009 IEEE.
Subjects E1
100505 Microwave and Millimetrewave Theory and Technology
861603 Integrated Circuits and Devices
Keyword Directional coupler
Microstrip circuit
Ultra wideband coupler
Q-Index Code E1
Q-Index Status Confirmed Code

 
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Created: Mon, 19 Apr 2010, 11:50:55 EST by Marie Walker on behalf of School of Information Technol and Elec Engineering