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Journal Article Compensated LTCC Broadside Coupler Design with Branch Lines
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Authors
Y. S. Noh, M. S. Uhm, I. B. Yom
Issue Date
2008-12
Citation
Microwave and Optical Technology Letters, v.50, no.12, pp.3134-3136
ISSN
0895-2477
Publisher
John Wiley & Sons
Language
English
Type
Journal Article
DOI
https://dx.doi.org/10.1002/mop.23930
Project Code
08MR1800, Developement of Global Navigation Satellite System Ground Station and Search And Rescue Beacon Technologies, Lee Sang Uk
Abstract
A compensation technique to generate enhanced return loss and directivity is proposed by using additional branch lines for a broadside coupler. The branch lines at all ports are added to reduce the port impedance, resulting in improvement of impedance matching for the tight coupled broadside coupler. The measured results of the proposed low-temperature cofired ceramic (LTCC) coupler show more than 4 dB enhancements of return loss and isolation, compared with those of the conventional, one. © 2008 Wiley Periodicals, Inc.
KSP Keywords
Low temperature(LT), Return loss(RL), compensation technique, coupler design, impedance matching, port impedance