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Frequenz

Journal of RF-Engineering and Telecommunications

Editor-in-Chief: Jakoby, Rolf


IMPACT FACTOR 2017: 0.280
5-year IMPACT FACTOR: 0.297

CiteScore 2017: 0.38

SCImago Journal Rank (SJR) 2017: 0.128
Source Normalized Impact per Paper (SNIP) 2017: 0.243

Online
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2191-6349
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Volume 72, Issue 9-10

Issues

Miniaturized Bandpass Filter with Wide Stopband using Spiral Configuration of Stepped Impedance Resonator

Vivek Singh
  • Department of Electronics & Communication Engineering, PDPM Indian Institute of Information and Technology, Design & Manufacturing, Jabalpur, India
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/ Vinay Kumar Killamsetty
  • Department of Electronics & Communication Engineering, PDPM Indian Institute of Information and Technology, Design & Manufacturing, Jabalpur, India
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/ Biswajeet Mukherjee
  • Corresponding author
  • Department of Electronics & Communication Engineering, PDPM Indian Institute of Information and Technology, Design & Manufacturing, Jabalpur, India
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Published Online: 2018-04-05 | DOI: https://doi.org/10.1515/freq-2017-0192

Abstract

In this letter, a miniaturized Band Pass Filter (BPF) with wide stopband centered at 0.350 GHz for TETRA band applications is proposed using a Spiral Short Circuit quarter wavelength Stepped Impedance Resonator (SSC-SIR) and a stub loaded on feed line for enhancement of rejection level in the stopband. Spiral configuration of the resonator is used for the miniaturization of BPF. The proposed BPF provides a 3dB fractional bandwidth of 13.7 % with two transmission zeros in the lower and upper stopband to provide good selectivity and four transmission zeros which provide wide stopband upto 6.86f0. Proposed BPF has a very compact size of 0.064λg×0.062λg.

Keywords: bandpass filter (BPF); miniaturization; spiral short circuit quarter wavelength stepped impedance resonator (SSC-SIR); transmission zero (TZ); wide stopband

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About the article

Received: 2017-08-22

Published Online: 2018-04-05

Published in Print: 2018-08-28


Citation Information: Frequenz, Volume 72, Issue 9-10, Pages 455–458, ISSN (Online) 2191-6349, ISSN (Print) 0016-1136, DOI: https://doi.org/10.1515/freq-2017-0192.

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