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Design of compact planar rat‐race and branch‐line hybrid couplers using polar curves
Author(s) -
Joubert Johan,
Odendaal Johann W.
Publication year - 2015
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.29397
Subject(s) - microwave , rat race coupler , hybrid coupler , planar , polar , line (geometry) , materials science , electronic engineering , power dividers and directional couplers , optoelectronics , engineering , physics , electrical engineering , computer science , mathematics , telecommunications , geometry , computer graphics (images) , astronomy
An approach where polar curves are used to miniaturize hybrid couplers is presented. The design of such couplers can be done with the optimization of a few parameters using full‐wave analysis software. The results show similar or better electrical performance for a rat‐race and branch‐line coupler with, respectively, a 75 and 50% size reduction. © 2015 Wiley Periodicals, Inc. Microwave Opt Technol Lett 55:2637–2640, 2015
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