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Analysis and Design of Planar Tunable Inner-Coupling Step Impedance Resonator 被引量:1
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作者 Yi-Hu Chen Lu-Yu Wang 《Journal of Electronic Science and Technology》 CAS 2010年第4期362-365,共4页
A full planar tunable band pass resonator is introduced, which is constructed by using novel symmetric step impedance resonator (SIR) and hyperabrupt varactors for wide bandwidth tuning and size reduction. The equiv... A full planar tunable band pass resonator is introduced, which is constructed by using novel symmetric step impedance resonator (SIR) and hyperabrupt varactors for wide bandwidth tuning and size reduction. The equivalent circuit model of the proposed resonator is set up. Theoretical analysis based on transmission line as well as odd and even-mode method is completed. The attractiveness of the approach presented lies in its simplicity. Based on the detailed analysis, a 6 GHz to 10 GHz varactor tuned resonator is designed, fabricated, and measured. It shows wideband tuning ability of 37%. The experimental results of the resonator have a good agreement with the analysis results. 展开更多
关键词 Odd and even-mode open and short circuit stub mode step impedance resonator tunable resonator.
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Tri-band bandpass filter based on coupled stepped impedance resonators
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作者 Zhang Xudong Zhang Hongxin He Pengfei 《The Journal of China Universities of Posts and Telecommunications》 EI CSCD 2015年第6期57-60,共4页
A novel tri-band bandpass filter (BPF) is proposed by using cross-coupled stepped impedance resonators (SIRs), which can operate at 2.4 GHz, 3.5 GHz and 5.25 GHz respectively. In engineering application, it is sui... A novel tri-band bandpass filter (BPF) is proposed by using cross-coupled stepped impedance resonators (SIRs), which can operate at 2.4 GHz, 3.5 GHz and 5.25 GHz respectively. In engineering application, it is suitable for wireless local area network (WLAN) and worldwide interoperability for microwave access (WiMAX). In addition, the passband of this filter can be easily controlled by changing the electrical parameters of the resonators. So it is helpful to the selection of passband in engineering applications. For in-depth analysis, the equivalent circuit of the filter is also proposed. At last, it shows that the measured results agree well with the simulated results. The insertion loss of the filter within each passband is less than 1.9 dB, meanwhile two transmission zeros are obtained which can be able to meet the engineering requirements. 展开更多
关键词 tri-band bandpass filter MICROSTRIP stepped impedance resonator cross-coupled
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Compact multilayer dual-band bandpass filter design using stepped impedance resonators
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作者 Han Yunan Liang Peiyun +4 位作者 Lin Yang Cheng Chunyue Yao Yuchen Jin Ming Dai Lin 《The Journal of China Universities of Posts and Telecommunications》 EI CSCD 2022年第5期99-104,共6页
Compact dual-band bandpass filter(BPF)for the 5 th generation mobile communication technology(5 G)radio frequency(RF)front-end applications was presented based on multilayer stepped impedance resonators(SIRs).The mult... Compact dual-band bandpass filter(BPF)for the 5 th generation mobile communication technology(5 G)radio frequency(RF)front-end applications was presented based on multilayer stepped impedance resonators(SIRs).The multilayer dual-band SIR BPF can achieve high selectivity and four transmission zeros(TZs)near the passband edges by the quarter-wavelength tri-section SIRs.The multilayer dual-band SIR BPF is fabricated on a 3-layer FR-4 substrate with a compact dimension of 5.5 mm×5.0 mm×1.2 mm.The measured two passbands of the multilayer dual-band SIR BPF are 3.3 GHz-3.5 GHz and 4.8 GHz-5.0 GHz with insertion loss(IL)less than 2 dB respectively.Both measured and simulated results suggest that it is a possible candidate for the application of 5 G RF front-end at sub-6 GHz frequency band. 展开更多
关键词 5G RF front-end bandpass filter(BPF) stepped impedance resonator(SIR) strip line transmission zero(TZ)
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