Design of Dual-Band Microstrip Filter Using Sir

DOI

10.2991/ceie-16.2017.79How to use a DOI?

Keywords

Dual-band Filter; Stepped-Impedance-Resonator; Impedance Ratio; Insertion loss; Fractional Bandwidth

Abstract

Two novel dual-band microstrip filters using g/2 Stepped-Impedance-Resonator(SIR) resonators are proposed in this paper. The prominent feature of the SIR filter is that the spurious response can be controlled by the impedance ratio Rz and the length ratio of the resonator. Simulated results show that the prototype of the dual-band filter1 achieves insertion loss of 0.4dB and 0.5dB, return loss of 23dB and 23.7dB, and fractional bandwidth of 9.8%and 8.2% at 2.4GHz and 5.2GHz, respectively. And the filter2 achieves insertion loss of 1.6dB and 2.8dB, and fractional bandwidth of 6.2% and 5.1% at 2.4GHz and 5.2GHz, respectively, and the isolation between two passband is well. The proposed dual-band band pass filters are designed and fabricated. A good agreement is achieved between measured and simulated results.

Copyright

© 2017, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Yinxia Zhu
AU  - Jian Zhang
AU  - Jian Cheng
AU  - Hongpeng Zhu
PY  - 2016/10
DA  - 2016/10
TI  - Design of Dual-Band Microstrip Filter Using Sir
BT  - Proceedings of the International Conference on Communication and Electronic Information Engineering (CEIE 2016)
PB  - Atlantis Press
SP  - 621
EP  - 626
SN  - 2352-5401
UR  - https://doi.org/10.2991/ceie-16.2017.79
DO  - 10.2991/ceie-16.2017.79
ID  - Zhu2016/10
ER  -