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Please use this identifier to cite or link to this item: http://repository.iitr.ac.in/handle/123456789/8092
Title: Analysis of frequency-selective impedance loading of transmission lines for dual-band couplers
Authors: Rawat K.
Ghannouchi F.M.
Rawat M.
Hashmi M.S.
Published in: International Journal of RF and Microwave Computer-Aided Engineering
Abstract: This article proposes an analytical design methodology for dual-band hybrid couplers and baluns structures for any arbitrary frequency ratio using a stub-loaded transmission line. An analysis of changing the impedance behavior of the stub, is carried out for the two bands of operation, which along with a dispersive analysis, emphasizes certain conditions where the existing methodology is not applicable. In addition, an extra degree of freedom has been included to increase the solutions for a given frequency ratio, thus providing greater flexibility and feasibility of the proposed structure. The design methodology is experimentally validated with the design and fabrication of dual-band branch-line and rat-race couplers for various commercial frequency bands. © 2011 Wiley Periodicals, Inc.
Citation: International Journal of RF and Microwave Computer-Aided Engineering (2011), 21(3): 325-335
URI: https://doi.org/10.1002/mmce.20521
http://repository.iitr.ac.in/handle/123456789/8092
Issue Date: 2011
Keywords: branch-line hybrid
CDMA
commercial communication bands
couplers
dispersion
dual-band
GSM
microstrip
rat-race balun
stub-loaded line
transmission line
WCDMA
WiMax
ISSN: 10964290
Author Scopus IDs: 57000644800
7006217592
35339866500
26430622900
Author Affiliations: Rawat, K., Department of Electrical and Computer Engineering, University of Calgary, AB T2N 1N4, Canada
Ghannouchi, F.M., Department of Electrical and Computer Engineering, University of Calgary, AB T2N 1N4, Canada
Rawat, M., Department of Electrical and Computer Engineering, University of Calgary, AB T2N 1N4, Canada
Hashmi, M.S., Department of Electrical and Computer Engineering, University of Calgary, AB T2N 1N4, Canada
Corresponding Author: Rawat, K.; Department of Electrical and Computer Engineering, University of Calgary, AB T2N 1N4, Canada; email: krawat@ucalgary.ca
Appears in Collections:Journal Publications [ECE]

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