Your browser does not support JavaScript!
http://iet.metastore.ingenta.com
1887

access icon free Dual-band superconducting bandpass filter with embedded resonator structure

© The Institution of Engineering and Technology
Received 02/06/2013, Published
Errata or comment

A dual-band superconducting microstrip filter with two passbands of 2.985–3.015 GHz and 3.045–3.075 GHz, respectively, is synthesised by a frequency transformation method. Open-loop resonators with embedded single spiral resonators are proposed to realise the synthesised resonator frequencies and coupling coefficients. This structure has the advantages of compact size and weak parasitic couplings, which benefit the implementation of the dual-band planar filter. The filter is successfully designed and fabricated on an MgO substrate. The measured results show high performance and match well with the simulations.

Inspec keywords: transforms; band-pass filters; superconducting filters; microstrip filters; resonator filters

Other keywords: frequency 3.045 GHz to 3.075 GHz; embedded resonator structure; parasitic couplings; planar filter; coupling coefficients; microstrip filter; frequency transformation method; dual-band superconducting bandpass filter; embedded single spiral resonators; frequency 2.985 GHz to 3.015 GHz; open-loop resonators; MgO; synthesised resonator frequencies

Subjects: Waveguide and microwave transmission line components; Integral transforms; Passive filters and other passive networks; Superconducting microwave devices

References

    1. 1)
      • 2. Zhang, X.Y., Chen, J.-X., Shi, J., Xue, Q.: ‘High-selectivity dual-band bandpass filter using asymmetric stepped-impedance resonators’, Electron. Lett., 2009, 45, (1), pp. 63–64 (doi: 10.1049/el:20091939).
    2. 2)
      • 6. Di, H., Wu, B., Lai, X., Liang, C.-H.: ‘Synthesis of cross-coupled triple-passband filters based on frequency transformation’, IEEE Microw. Wirel. Compon. Lett., 2010, 20, (8), pp. 432–434 (doi: 10.1109/LMWC.2010.2049829).
    3. 3)
      • 1. Tsai, L.-C., Hsue, C.-W.: ‘Dual-band bandpass filters using equal-length coupled-serial-shunted lines and Z-transform technique’, IEEE Trans. Microw. Theory Tech., 2004, 52, (4), pp. 1111–1117 (doi: 10.1109/TMTT.2004.825680).
    4. 4)
      • 4. Abu-Hudrouss, A.M., Jayyousi, A.B., Lancaster, M.J.: ‘Tri-band HTS filter using dual spiral resonators with capacitive-loading’, IEEE Trans. Appl. Supercond., 2008, 18, (3), pp. 1728–1732 (doi: 10.1109/TASC.2008.2000908).
    5. 5)
      • 5. Macchiarella, G., Timiazzo, S.: ‘Design techniques for dual-passband filters’, IEEE Trans. Microw. Theory Tech., 2005, 53, (11), pp. 3265–3271 (doi: 10.1109/TMTT.2005.855749).
    6. 6)
      • 7. Sonnet software Inc., EM User's Manual, Version 12.52, NY2009.
    7. 7)
      • 3. Chu, Q.-X., Lin, X.-M.: ‘Advanced triple-band bandpass filter using tri-section SIR’, Electron. Lett., 2008, 44, (4), pp. 295–296 (doi: 10.1049/el:20083096).
http://iet.metastore.ingenta.com/content/journals/10.1049/el.2013.1856
Loading

Related content

content/journals/10.1049/el.2013.1856
pub_keyword,iet_inspecKeyword,pub_concept
6
6
Loading
Correspondence
This article has following corresponding article(s):
in brief
Print this page
This is a required field
Please enter a valid email address