IEICE Transactions on Communications
Online ISSN : 1745-1345
Print ISSN : 0916-8516
Regular Section
Slow-Wave Microstrip Lines Using Ground Slots for Enhanced Impedance Control
Kook Joo LEEHyung Jin PARKSeung-Ho CHOIMoonil KIM
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2010 Volume E93.B Issue 12 Pages 3632-3634

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Abstract
Straight microstrip lines alternately loaded with ground slots and open-end stubs are analyzed. Fabricated samples containing slots and stubs with various length combinations demonstrate constant slow-wave factors of 1.7 to 3.0 with negligible amounts of radiation loss and larger characteristic impedance tuning range. A slow-wave band-rejection filter at 1.8GHz is built for performance comparison with a regular microstrip-line filter.
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© 2010 The Institute of Electronics, Information and Communication Engineers
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