Title :
Design and cross-section analysis of wideband rectangular-shaped directional coupler
Author :
Ghazali, S.N.A.M. ; Seman, N. ; Yob, R.C. ; Rahim, M.K.A. ; Rahim, S.K.A.
Author_Institution :
Wireless Commun. Centre (WCC), Univ. Teknol. Malaysia, Skudai, Malaysia
Abstract :
This article presents the design of three-section rectangular-shaped directional coupler, which offers a tight coupling of 3 dB over the designated frequency band of 2 to 6 GHz. The proposed coupler was consisted of two substrates and one common ground plane between the two substrates. The proposed design was formed by rectangular-shaped microstrip line at the top and bottom with rectangular slot at the common ground plane. The overall dimension of the designed directional coupler, excluding microstrip ports occupy an area of 50 mm × 20 mm. CST Microwave Studio simulator was used to design and optimize the coupler. The cross-section analysis was performed in order to study the characteristic of electric field during the odd and even-mode excitation of the coupler.
Keywords :
UHF couplers; directional couplers; microstrip couplers; microstrip lines; rectangular waveguides; CST microwave studio simulator; common ground plane; cross section analysis; electric field; even mode excitation; frequency 2 GHz to 6 GHz; odd mode excitation; rectangular shaped microstrip line; size 20 mm; size 50 mm; three section rectangular shaped directional coupler; wideband rectangular shaped directional coupler; Directional couplers; Electric fields; Microstrip; Microwave communication; Substrates; Cross-section analysis; coupler; microstrip-slot; rectangular-shaped; wideband;
Conference_Titel :
RF and Microwave Conference (RFM), 2011 IEEE International
Conference_Location :
Seremban, Negeri Sembilan
Print_ISBN :
978-1-4577-1628-7
DOI :
10.1109/RFM.2011.6168720
