Abstract
A multiple band bandpass filter (BPF) is designed using multilayer arrangement. The bandpass filter has three passbands having centre frequencies at 2.45 GHz, 4 GHz and 5 GHz. First a single band BPF is designed which includes a pair of coupled resonator and a split ring resonator in a multilayer arrangement. This geometry of the filter structure is studied and validated by fabrication and measurement. The initial single band filter structure is further improved to provide triple band BPF. All these bands are realized by a stub loaded U-shaped step impedance resonator (SLU-SIR). However, to improve the response of the second and third band a modified split ring resonator and a pair of open stubs are used. Each passband can be controlled individually. A mathematical analysis is done to study the proposed SLU-SIR using transmission line model. The proposed filter provides compactness and low insertion loss. A prototype is measured using vector network analyser (VNA) and shows a good matching with the simulated result.
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References
Ai J, Zhang Y, Xu KD, Li D, Fan Y (2016) Miniaturized quint-band bandpass filter based on multi-mode resonator and λ/4 resonators with mixed electric and magnetic coupling. IEEE Microw Wirel Compon Lett 26:343–345. https://doi.org/10.1109/LMWC.2016.2549643
Chang WS, Chang CY (2011) Analytical design of microstrip short circuit terminated stepped-impedance resonator dual-band filter. IEEE Trans Microw Theory Tech 59:1730–1739. https://doi.org/10.1109/TMTT.2011.2132140
Chen CF (2012) Design of a compact microstrip quint-band filter based on the tri-mode stub-loaded stepped-impedance resonators. IEEE Microw Wirel Compon Lett 22:357–359. https://doi.org/10.1109/LMWC.2012.2202894
Chen JX, Li YL, Qin W, Yang YJ, Bao ZH (2018) Compact multi-layer bandpass filter with wide stopband using selective feeding scheme. IEEE Trans Circuits Syst II 65:1009–1013. https://doi.org/10.1109/TCSII.2017.2782692
Clavet Y, Rius E, Quendo C, Favennec JF, Person C, Laporte C, Zanchi C, Moroni P, Cayrou JC, Cazaux JL (2007) C-band multilayer bandpass filter using open-loop resonators with floating metallic patches. IEEE Microw Wirel Compon Lett 17:646–648. https://doi.org/10.1109/LMWC.2007.903438
Gao L, Zhang XY, Xue Q (2015) Compact tri-band bandpass filter using novel eight-mode resonator for 5G WiFi application. IEEE Microw Wirel Compon Lett 25:660–662. https://doi.org/10.1109/LMWC.2015.2421298
Gao L, Zhang XY, Zhao XL, Zhang Y, Xu JX (2016) Novel compact quad-band bandpass filter with controllable frequencies and bandwidths. IEEE Microw Wirel Compon Lett 26:395–397. https://doi.org/10.1109/LMWC.2016.2558038
García RG, Yang L (2019) Selectivity-Enhancement Technique for Stepped-Impedance-Resonator Dual-Passband Filters. IEEE Microw Wirel Compon Lett 29:453–455. https://doi.org/10.1109/LMWC.2019.2916458
Hsu KW, Lin JH, Tu WH (2014) Compact Sext-Band Bandpass Filter With Sharp Rejection Response. IEEE Microw Wirel Compon Lett 24:593–595. https://doi.org/10.1109/LMWC.2014.2328895
Li D, Yu Y, Song R, Tang MC, Ai J, Liao Y (2019) Design of compact quad-band bandpass filter with good selectivity using two-/tri-section SIRs and stepped impedance inverters. IET Microw Antennas Propag 13:675–682. https://doi.org/10.1049/iet-map.2018.5690
Luo XH, Cheng X, Han JA, Zhang L, Chen FJ, Guo YJ, Xia XL, Deng XJ (2019) Compact dual-band bandpass filter using defected SRR and irregular SIR. Electron Lett 55:463–465. https://doi.org/10.1049/el.2018.8032
Ma K, Fan L, Zhang S (2015) Compact multilayer self-packaged filter with surface-mounted packaging. Electron Lett 51:564–566. https://doi.org/10.1049/el.2014.4129
Ren B, Ma Z, Liu H, Guan X, Wen P, Wang X, Masataka O (2019) Miniature dual-band bandpass filter using modified quarter-wavelength SIRs with controllable passbands. Electron Lett 55:38–40. https://doi.org/10.1049/el.2018.6702
Taand HH, Pham AV (2014) Compact wide stopband bandpass filter on multilayer organic substrate. IEEE Microw Wirel Compon Lett 24:161–163. https://doi.org/10.1109/LMWC.2013.2293672
Wu HW, Chiu CT (2016) Design of compact multi-layered quad-band bandpass filter. IEEE Microw Wirel Compon Lett 26:879–881. https://doi.org/10.1109/LMWC.2016.2615082
Wu HW, Chen YF, Chen YW (2012) Multi-layered dual-band bandpass filter using stub-loaded stepped-impedance and uniform-impedance resonators. IEEE Microw Wirel Compon Lett 22:114–116. https://doi.org/10.1109/LMWC.2012.2185784
Xu J, Wuand W, Wei G (2015) Compact multi-band bandpass filters with mixed electric and magnetic coupling using multiple-mode resonator. IEEE Trans Microw Theory Tech 63:3909–3919. https://doi.org/10.1109/TMTT.2015.2488643
Xu J, Wu W, Wei G (2016) Novel dual-band bandpass filter and reconfigurable filters using lumped-element dual-resonance resonators. IEEE Trans Microw Theory Tech 64:1496–1507. https://doi.org/10.1109/TMTT.2016.2548458
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Choudhury, S.R., Kumar, M., Sengupta, A. et al. Multilayer triple band bandpass filter with a floating U-shaped SIR and split ring resonator. Microsyst Technol 26, 1369–1378 (2020). https://doi.org/10.1007/s00542-019-04669-9
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DOI: https://doi.org/10.1007/s00542-019-04669-9