By Topic

Nonstandard Hybrid and Crossover Design With Branch-Line Structures

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$33 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

1 Author(s)
J. J. Yao ; RF& Optical department, Institute for Infocomm Research, Agency for Science, Technology and Research (A*STAR), Fusionopolis, Singapore

In this paper, we tried to use a symbolic math function of Matlab to derive theoretical S-parameters of a general branch-line structure; and we then managed to obtain design equations for 90°, 180° hybrids, and crossovers with the derived S-parameter expressions. We found that we can obtain several types of useful configurations for hybrid and crossover design by varying branch-line lengths of the structure. Besides standard designs, more interesting nonstandard 90°, 180° hybrids, and crossovers can be designed with suggested configurations of the design equations. Several example designs were built and tested; what is more, a nonstandard combiner/divider working on 5.8-7.2 GHz was designed to provide compact size and lower insertion loss for high-power very small aperture terminal amplifiers.

Published in:

IEEE Transactions on Microwave Theory and Techniques  (Volume:58 ,  Issue: 12 )