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Improved performance of photonic band-gap microstripline structures with the use of Chebyshev distributions

✍ Scribed by Nemai C. Karmakar

Publisher: John Wiley and Sons
Year: 2002
Tongue: English
Weight: 277 KB
Volume: 33
Category: Article
ISSN: 0895-2477
DOI: 10.1002/mop.10212

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✦ Synopsis

Abstract

Conventional uniform circular‐patterned photonic band gaps (PBGs) have constraints in the broadband passband and stopband performance because of the high ripple heights in S parameters. This Letter suggests a novel configuration with nonuniform dimensions of circular‐patterned PBG to improve both pass‐ and stopband bandwidths and the ripples. The dimensions of the circles are varied proportionally to the relative Chebyshev amplitudes of a 10‐element PBG array, and the dispersion characteristics are analyzed. It is seen that the Chebyshev distribution of the circular‐patterned PBG line produces excellent performance by suppressing ripples and yielding better selectivity at cutoffs. © 2002 Wiley Periodicals, Inc. Microwave Opt Technol Lett 33: 1–5, 2002; DOI 10.1002/mop.10212

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