UM
Synthesis design of ultra-wideband bandpass filters with composite series and shunt stubs
Li R.1; Sun S.2; Zhu L.1
2009
Source PublicationIEEE Transactions on Microwave Theory and Techniques
Volume57
Issue1
Pages684-692
AbstractThis paper presents a direct synthesis procedure for efficient design of a class of ultra-wideband bandpass filters with composite series and shunt transmission-line stubs. The proposed single-stage bandpass prototype is formed by cascading two sets of series open-ended and shunt short-ended stubs through a multisection nonuniform transmission line. All the stubs are set with an identical electrical length, i.e., θ, at lower cutoff frequency f and the middle connecting line is composed of stepped-impedance transmission line with sections, and each section has an electrical length θ. The proposed filter topology aims to construct an ultrawide bandpass filter with Chebyshev equal-ripple responses and (i + 3) in-band transmission poles. Based on the derivation of the transfer function, a synthesis approach is established and systematically described to design this type of filters according to the specifications such as lower/upper cutoff frequencies. Next, a multistage bandpass filter prototype is proposed and the synthesis design procedure is also presented. The implementation is achieved by using hybrid microstrip line and slotline sections. Compared with traditional stub filters, the proposed filters achieve higher order transmission zeros and thus provide higher selectivity. As design examples, two single-stage and one three-stage bandpass filters are designed and fabricated to confirm the theoretical predictions. © 2009 IEEE.
KeywordBandpass filter Equal-ripple response Multistage Series/shunt stubs Single stage Synthesis design Ultra-wideband
URLView the original
Language英語
Fulltext Access
Document TypeConference paper
CollectionUniversity of Macau
Affiliation1.Nanyang Technological University
2.Universität Ulm
Recommended Citation
GB/T 7714
Li R.,Sun S.,Zhu L.. Synthesis design of ultra-wideband bandpass filters with composite series and shunt stubs[C],2009:684-692.
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Li R.]'s Articles
[Sun S.]'s Articles
[Zhu L.]'s Articles
Baidu academic
Similar articles in Baidu academic
[Li R.]'s Articles
[Sun S.]'s Articles
[Zhu L.]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Li R.]'s Articles
[Sun S.]'s Articles
[Zhu L.]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.