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Improved coplanar waveguide (CPW) bandstop filter with photonic bandgap (PBG) structure

โœ Scribed by Man-Long Her; Chin-Min Chang; Yu-Zhen Wang; Fan-Hsi Kung; Yi-Chyun Chiou

Publisher
John Wiley and Sons
Year
2003
Tongue
English
Weight
106 KB
Volume
38
Category
Article
ISSN
0895-2477

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โœฆ Synopsis

Abstract

A new doubly tapered photonic bandgap (DTโ€PBG) technique in both planar and cylindrical coplanar waveguide (CCPW) structures is proposed and analyzed. The DTโ€PBG structure of a coplanar waveguide (CPW) bandstop filter not only can reduce the passband ripple but can also increase the stopband rejection bandwidth without degrading the upper passband loss. ยฉ 2003 Wiley Periodicals, Inc. Microwave Opt Technol Lett 38: 274โ€“277, 2003; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.11036

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Improved tunable coplanar waveguide (CPW
Improved tunable coplanar waveguide (CPW) bandstop filter
โœ Man-Long Her; Yu-Zhen Wang; Kun-Ying Lin; Yu-Wei Chen ๐Ÿ“‚ Article ๐Ÿ“… 2004 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 199 KB

## Abstract An improved tunable coplanar waveguide (CPW) bandstop filter, which exhibits good performance, is proposed in this paper. A novel tunable open stub and a useful formula for frequency shift and impedances are also presented. Further, air bridges and a special method of step compensation