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A high selectivity wideband bandpass filter (BPF) based on transversal signal-interaction concepts and T-shaped structure is proposed in this letter. Two transmission paths with two open coupled lines and a T-shaped structure are used to realize signal transmission from Port 1 to Port 2. A three-order passband with two transmission zeros can be achieved in the proposed filter. One prototype with 3-dB fractional bandwidth of 36.3% (3.3-4.75 GHz) is fabricated for demonstration. Good agreement is observed between simulated and measured performances.
Published in:
Microwave and Wireless Components Letters, IEEE
(Volume:22
,
Issue:
11
)
Date of Publication: Nov. 2012
- Page(s):
- 562 - 564
- ISSN :
- 1531-1309
- INSPEC Accession Number:
- 13115919
- Digital Object Identifier :
- 10.1109/LMWC.2012.2224651
- Product Type:
- Journals & Magazines
- Date of Publication :
- 25 October 2012
- Date of Current Version :
- 15 November 2012
- Issue Date :
- Nov. 2012
- Sponsored by :
- IEEE Microwave Theory and Techniques Society
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