DocumentCode :
2454841
Title :
Second order dual-path coupled line filter
Author :
Nordin, S.A. ; Salleh, M. K Mohd
Author_Institution :
Fac. of Electr. Eng., Univ. Teknol. MARA (UiTM), Shah Alam, Malaysia
fYear :
2011
fDate :
25-28 Sept. 2011
Firstpage :
9
Lastpage :
12
Abstract :
An original filter topology based on dual-path parallel coupled-lines is presented. Two identical coupled-lines are combined in parallel to result in a wideband bandpass response. Two transmission zeros are also resulted thanks to the cancellation effect in the dual-path connection. It is also shown that the use of asymmetrical coupled lines helps in giving more flexibility in obtaining higher coupling for better in-band matching. The proposed concept is tested using microstrip technology on FR4 substrate. Simulation and measurement results are presented in this paper to show its feasibility.
Keywords :
coupled transmission lines; microstrip filters; microstrip lines; FR4 substrate; asymmetrical coupled lines; dual-path connection; filter topology; in-band matching; microstrip technology; second order dual-path coupled line filter; transmission zeros; wideband bandpass response; Band pass filters; Filtering theory; Microstrip filters; Microwave filters; Resonator filters; Wideband; bandpass filters; coupled-lines; wideband filters;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Wireless Technology and Applications (ISWTA), 2011 IEEE Symposium on
Conference_Location :
Langkawi
Print_ISBN :
978-1-4577-1496-2
Type :
conf
DOI :
10.1109/ISWTA.2011.6089541
Filename :
6089541
Link To Document :
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