Universiti Teknologi Malaysia Institutional Repository

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

Bialkowski, M. E. and Seman, N. and Leong, M. S. (2009) Design of a compact ultra wideband 3-dB microstrip-slot coupler with high return losses and isolation. In: Proc. Asia-Pacific Microwave Conference, 2009 (APMC 2009), 2009.

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Official URL: http://dx.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.

Item Type:Conference or Workshop Item (Paper)
Uncontrolled Keywords:directional coupler, microstrip circuit, ultra wideband coupler
Subjects:T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions:Electrical Engineering
ID Code:15037
Deposited By: Liza Porijo
Deposited On:19 Sep 2011 09:30
Last Modified:19 Sep 2011 09:30

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