Synthesis of Dual-Band Bandpass Filters with Asymmetric Stepped-Impedance CBACPW Resonators

WANG Zhongbao; FANG Shaojun

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Article Navigation > Chinese Journal of Electronics > 2013 > 22(4): 861-864

WANG Zhongbao and FANG Shaojun, “Synthesis of Dual-Band Bandpass Filters with Asymmetric Stepped-Impedance CBACPW Resonators,” Chinese Journal of Electronics, vol. 22, no. 4, pp. 861-864, 2013,

Citation:

WANG Zhongbao and FANG Shaojun, “Synthesis of Dual-Band Bandpass Filters with Asymmetric Stepped-Impedance CBACPW Resonators,” Chinese Journal of Electronics, vol. 22, no. 4, pp. 861-864, 2013,

WANG Zhongbao and FANG Shaojun, “Synthesis of Dual-Band Bandpass Filters with Asymmetric Stepped-Impedance CBACPW Resonators,” Chinese Journal of Electronics, vol. 22, no. 4, pp. 861-864, 2013,

Citation:

WANG Zhongbao and FANG Shaojun, “Synthesis of Dual-Band Bandpass Filters with Asymmetric Stepped-Impedance CBACPW Resonators,” Chinese Journal of Electronics, vol. 22, no. 4, pp. 861-864, 2013,

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Synthesis of Dual-Band Bandpass Filters with Asymmetric Stepped-Impedance CBACPW Resonators

School of Information Science and Technology, Dalian Maritime University, Dalian 116026, China

Funds: This work is supported by National Natural Science Foundation of China (No.61071044), Traffic Applied Basic Research Project of the Ministry of Transport of China (No.2010-329-225-030), Fundamental Research Funds for the Central Universities (No.3132013053 and No.2012TD007) and National Key Technologies R&D Program of China (No.2012BAH36B01).

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Corresponding author: WANG Zhongbao, FANG Shaojun
Received Date: 2012-11-01
Rev Recd Date: 2013-05-01
Publish Date: 2013-09-25

Abstract

Abstract

A novel Dual-band bandpass filter (DBBPF) with an asymmetric topology and steppedimpedance Conductor-backed asymmetric coplanar waveguide (CBACPW) resonators is proposed in this paper. Compared with the existing DBBPFs with a same low-pass prototype, two additional transmission zeros are emerged by using the asymmetric topology. To facilitate the filter synthesis, design formulas of the filter are derived, and an ANN-based synthesis model of CBACPWs is developed. To validate the filter synthesis method, a DBBPF operating at GSM and GPS bands is designed, simulated and measured. A good agreement between simulation and measurement is obtained.
- Dual-band bandpass filter,
- Asymmetric coplanar waveguide,
- Asymmetric topology,
- Filter synthesis

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References(14)

References

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