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Browse Journals & Magazines > Microwave and Wireless Compon ...> Volume:22 Issue:3 Help

Multi-Layered Dual-Band Bandpass Filter Using Stub-Loaded Stepped-Impedance and Uniform-Impedance Resonators

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3 Author(s)
Hung-Wei Wu ; Dept. of Comput. & Commun., Kun Shan Univ., Tainan, Taiwan ; Yu-Fu Chen ; Yung-Wei Chen

The design of multi-layered dual-band bandpass filter using stub-loaded stepped-impedance and uniform-impedance resonators is proposed. The filter is designed to have dual-passband at 2.4, and 5.2 GHz for Wireless Local Area Network (WLAN). The multi-layered filter consists of the stub-loaded stepped-impedance resonator (SL-SIR) on the top layer and the stub-loaded uniform-impedance resonator (SL-UIR) on the bottom layer, that can provide the multi-path propagation to enhance the filter performance and compact circuit size. The proposed SL-SIR and SL-UIR play important roles for controlling the transmission zeros at each first and second passband edges. The measured results are in good agreement with the full-wave electromagnetic simulation results.

Published in:
Microwave and Wireless Components Letters, IEEE  (Volume:22 ,  Issue: 3 )

Date of Publication: March 2012

Page(s):
114 - 116
ISSN :
1531-1309
INSPEC Accession Number:
12591237
Digital Object Identifier :
10.1109/LMWC.2012.2185784
Date of Publication :
24 February 2012
Date of Current Version :
12 March 2012
Issue Date :
March 2012
Sponsored by :
IEEE Microwave Theory and Techniques Society

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