• May 14, 2019 News!Vol.7, No.5-Vol.8, no.2 has been indexed by EI (Inspec).   [Click]
  • Apr 15, 2019 News!Papers published in Vol.8, No.1-No.4 have all received dois from Crossref.
  • Mar 21, 2019 News!Papers published in Vol.7, No.2-No.6 have all received dois from Crossref.
General Information
    • ISSN: 2010-3719 (Online)
    • Frequency: Quarterly
    • DOI: 10.18178/IJIEE
    • Editor-in-Chief: Prof. Chandratilak De Silva Liyanage
    • Executive Editor: Jennifer Zeng
    • Abstracting/ Indexing : Google Scholar, Electronic Journals Library, Crossref and ProQuest, Ei (INSPEC, IET), EBSCO.
    • E-mail ijiee@ejournal.net
Editor-in-chief

 
University of Brunei Darussalam, Brunei Darussalam   
" It is a great honor to serve as the editor-in-chief of IJIEE. I'll work together with the editorial team. Hopefully, The value of IJIEE will be well recognized among the readers in the related field."

IJIEE 2015 Vol.5(2): 79-83 ISSN: 2010-3719
DOI: 10.7763/IJIEE.2015.V5.506

Switchable Dual-Band Filter with Hybrid Feeding Structure

Ming-Lin Chuang, Ming-Tien Wu, and Pei-Ru Wu
Abstract— This study presents a novel switchable dual-band filter. An original concurrent dual-band filter uses a hybrid feeding structure such that the external quality factors of the two designated bands can be obtained individually. Therefore, there is no need for a dual-band impedance transformer and time-consuming parameter tuning is avoided. Stepped-impedance quarter-wavelength resonators are used to reduce the circuit size. Two types of switching circuit are added to the original concurrent dual-band filter to obtain a switchable dual-band filter. The proposed switchable dual-band filter has four possible operating states and thus the two passbands can be enabled or disabled independently.

Index Terms— Switchable dual-band filter, stepped-impedance resonator, quarter-wavelength resonator.

Ming-Lin Chuang, Ming-Tien Wu, and Pei-Ru Wu are with the Communication Engineering Department, National Penghu University of Science and Technology, Taiwan (e-mail: morris@npu.edu.tw).

[PDF]

Cite: Ming-Lin Chuang, Ming-Tien Wu, and Pei-Ru Wu, " Switchable Dual-Band Filter with Hybrid Feeding Structure," International Journal of Information and Electronics Engineering vol. 5, no. 2, pp. 79-83, 2015.

Copyright © 2008-2019. International Journal of Information and Electronics Engineering. All rights reserved.
E-mail: ijiee@ejournal.net