Design of a multisection impedance-transforming branch-line hybrid using a genetic algorithm

A design method for a multisection impedance-transforming branch-line hybrid using a genetic algorithm is proposed. In contrast to the previous design methods, an asymmetric structure is introduced to optimize the hybrid. Optimization is performed within the impedance range to achieve the realizable...

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Bibliographic Details
Published in:Microwave and optical technology letters 1999-01, Vol.22 (6), p.436-439
Main Authors: Lee, Kyungwoo, Kwon, Kunsup, Lee, Sangseol
Format: Article
Language:English
Online Access:Get full text
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Summary:A design method for a multisection impedance-transforming branch-line hybrid using a genetic algorithm is proposed. In contrast to the previous design methods, an asymmetric structure is introduced to optimize the hybrid. Optimization is performed within the impedance range to achieve the realizable hybrids with a microstrip line in a desired frequency range. The hybrid designed by the proposed method has 3-10% more bandwidth than the previous results.
ISSN:0895-2477
DOI:10.1002/(sici)1098-2760(19990920)22:6<436::aid-mop21>3.0.co;2-o