DocumentCode
980217
Title
New formulas for synthesizing microstrip bandpass filters with relatively wide bandwidths
Author
Chin, Kuo-Sheng ; Lin, Liu-Yang ; Kuo, Jen-Tsai
Author_Institution
Dept. of Commun. Eng., Nat. Chiao Tung Univ., Hsinchu, Taiwan
Volume
14
Issue
5
fYear
2004
fDate
5/1/2004 12:00:00 AM
Firstpage
231
Lastpage
233
Abstract
New formulas are proposed for designing wideband parallel-coupled microstrip bandpass filters with improved prediction of bandwidth. When a fractional bandwidth Δ is required, a correction θ=(π/2)(1±Δ/2) is incorporated into the formulation for determining the dimensions of each coupled stage. Two filters with Δ=50% are designed and fabricated to show the improvement. The measurement shows a very good agreement with the simulation.
Keywords
band-pass filters; microstrip filters; bandwidth prediction; microstrip bandpass filters synthesis; parallel-coupled filter; parallel-coupled microstrip bandpass filters; wide bandwidth design; wideband bandpass filters; Admittance; Band pass filters; Bandwidth; Circuit synthesis; Coupling circuits; Frequency; Microstrip filters; Microwave filters; Transmission line matrix methods; Transmission line theory; Parallel-coupled filter; wide bandwidth;
fLanguage
English
Journal_Title
Microwave and Wireless Components Letters, IEEE
Publisher
ieee
ISSN
1531-1309
Type
jour
DOI
10.1109/LMWC.2004.827865
Filename
1296670
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