Please use this identifier to cite or link to this item: https://doi.org/10.1109/APMC.2009.5384475
Title: Design of a compact ultra wideband 3 DB microstrip-slot coupler with high return losses and isolation
Authors: Bialkowski, M.E.
Seman, N.
Leong, M.S. 
Keywords: Directional coupler
Microstrip circuit
Ultra wideband coupler
Issue Date: 2009
Citation: Bialkowski, M.E., Seman, N., Leong, M.S. (2009). Design of a compact ultra wideband 3 DB microstrip-slot coupler with high return losses and isolation. APMC 2009 - Asia Pacific Microwave Conference 2009 : 1334-1337. ScholarBank@NUS Repository. https://doi.org/10.1109/APMC.2009.5384475
Abstract: 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.
Source Title: APMC 2009 - Asia Pacific Microwave Conference 2009
URI: http://scholarbank.nus.edu.sg/handle/10635/69848
ISBN: 9781424428021
DOI: 10.1109/APMC.2009.5384475
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