NDLI: Broad-band microstrip-to-CPW transition via frequency-dependent electromagnetic coupling

Content Provider	IEEE Xplore Digital Library
Author	Lei Zhu Menzel, W.
Copyright Year	1963
Abstract	An improved broad-band microstrip-to-coplanar-waveguide (CPW) transition is developed on a basis of the frequency-dependence characteristic of an electromagnetic surface-to-surface coupling. A self-calibrated method of moments is extended to model this unbounded two-port discontinuity with the two dissimilar microstrip/CPW feeding lines. Numerical results are provided to demonstrate its frequency response of transmission under varied strip/slot dimensions and further exhibit its attractive ultra-broad-band transmission with low radiation loss. Next, the back-to-back transition circuits with the two different lengths are fabricated and measured to deembed in experiment the S-parameters of two single-transition structures. Predicted and measured results show good agreement with the return loss less than -10dB over the frequency of 3.2-11.2 GHz.
Sponsorship	IEEE Microwave Theory and Techniques Society
Starting Page	1517
Ending Page	1522
Page Count	6
File Size	322518
File Format	PDF
ISSN	00189480
Volume Number	52
Issue Number	5
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2004-05-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Microstrip Electromagnetic coupling Coplanar waveguides Moment methods Transmission line discontinuities Frequency response Strips Propagation losses Circuits Length measurement
Content Type	Text
Resource Type	Article
Subject	Condensed Matter Physics Electrical and Electronic Engineering Radiation

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