Compact tapped stepped impedance open stub dual-band bandstop filters with sharp rejection characteristics
✍ Scribed by Vamsi Krishna Velidi; Ajaybabu Guntupalli; Subrata Sanyal
- Publisher
- John Wiley and Sons
- Year
- 2009
- Tongue
- English
- Weight
- 430 KB
- Volume
- 51
- Category
- Article
- ISSN
- 0895-2477
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✦ Synopsis
Abstract
In this article, a novel transmission line (TL) shunt stepped impedance open stub configuration has been presented to design a dual‐band bandstop filter with impedance controlled center frequencies and bandwidths. Design guidelines are derived using lossless TL model. The high‐impedance lines required for TL sections facilitate convenient meandering that makes the geometry compact. To validate theoretical predictions, a prototype filter operating at two bands 1.5 and 3.4 GHz has been fabricated. © 2009 Wiley Periodicals, Inc. Microwave Opt Technol Lett 51: 2274–2277, 2009; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.24635