Design of a broadband quadrature directional coupler

Abbosh, A. M. (2007). Design of a broadband quadrature directional coupler. In: P. Akkaraekthalin, T. Angkew and A. Roeksabutr, Asia-Pacific Microwave Conference Proceeding. Asia-Pacific Microwave Conference (APMC2007), Bangkok, Thailand, (1005-1008). 11-14 December 2007. doi:10.1109/APMC.2007.4554779

Author Abbosh, A. M.
Title of paper Design of a broadband quadrature directional coupler
Conference name Asia-Pacific Microwave Conference (APMC2007)
Conference location Bangkok, Thailand
Conference dates 11-14 December 2007
Proceedings title Asia-Pacific Microwave Conference Proceeding
Journal name 2007 Asia Pacific Microwave Conference, Vols 1-5
Place of Publication New Jersey, United States
Publisher IEEE
Publication Year 2007
Sub-type Fully published paper
DOI 10.1109/APMC.2007.4554779
ISBN 9781424407491
Editor P. Akkaraekthalin
T. Angkew
A. Roeksabutr
Volume 3
Issue 1
Start page 1005
End page 1008
Total pages 4
Collection year 2008
Language eng
Abstract/Summary The design of an edge-coupled quadrature directional coupler, which has a broadband performance and a relaxed coupled-line spacing, is presented. A slotted ground plane is used underneath the coupled region in order to relax the requirement for a narrow slot between the coupled lines. The simulated results show that the designed coupler exhibits a coupling of 3plusmn1 dB across the band 3.8 GHz to 9.8 GHz, when the spacing between the coupled lines is larger than 0.1 mm. Without the slot in the ground plane, the spacing should be less than 0.01 mm in order to achieve the same value of coupling across that band. This broadband coupling is accompanied by an isolation and return loss in the order of 14 dB or better. The designed device has a compact size with a dimension of 30 mmx20 mm.
Subjects E1
700302 Telecommunications
291705 Microwave and Millimetrewave Technology
Q-Index Code E1
Q-Index Status Confirmed Code
Institutional Status UQ
Additional Notes Online publication article number 4554779.

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Created: Thu, 01 May 2008, 09:54:15 EST by Donna Clark on behalf of School of Information Technol and Elec Engineering