Compact narrow band-pass filter with λG/4 short stubs using impedance mismatching of the transmission line
✍ Scribed by Ki-Cheol Yoon; Jeonggon Harrison Kim; Jong-Chul Lee
- Publisher
- John Wiley and Sons
- Year
- 2010
- Tongue
- English
- Weight
- 772 KB
- Volume
- 52
- Category
- Article
- ISSN
- 0895-2477
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✦ Synopsis
Abstract
In this article, a narrow band pass filter with reduced size using the λ~g~/4 short stubs is presented.The filter size is reduced by realization of transmission line at the second harmonic while the power can be transferred to the output using the fundamental frequency band generated in the resonator and the transmission line in which the impedance mismatching technique is adopted. The experimental results show that the insertion loss is 2.0 dB and return loss is 11.1 dB, and the fractional bandwidth is 10% at the center frequency of 5.8 GHz. The filter size is 19.7 × 8.6 mm^2^. © 2010 Wiley Periodicals, Inc. Microwave Opt Technol Lett 52: 2002–2005, 2010; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.25419