DocumentCode
810311
Title
A modified parallel-coupled filter structure that improves the upper stopband rejection and response symmetry
Author
Chang, Chi-Yang ; Itoh, Tatsuo
Author_Institution
Dept. of Electr. & Comput. Eng., Texas Univ., Austin, TX, USA
Volume
39
Issue
2
fYear
1991
fDate
2/1/1991 12:00:00 AM
Firstpage
310
Lastpage
314
Abstract
A modified parallel-coupled microstrip line filter structure is presented. Using this new structure improves the filter upper stopband rejection by at least 15 dB, and the filter response symmetry is also improved. Compared with the traditional parallel-coupled filter, the modified filter used less space and is easy to lay out owing to its inline structure. Several examples show the performance improvement of the filters fabricated in both low-dielectric-constant (2.55) and high-dielectric-constant (10.2) substrates
Keywords
microwave filters; passive filters; strip line components; high-dielectric-constant; inline structure; low-dielectric-constant; microstrip line filter; parallel-coupled filter structure; response symmetry; substrates; upper stopband rejection; Band pass filters; Delay; Equations; Equivalent circuits; Frequency response; Helium; Microstrip filters; Military computing; Passband; Performance analysis;
fLanguage
English
Journal_Title
Microwave Theory and Techniques, IEEE Transactions on
Publisher
ieee
ISSN
0018-9480
Type
jour
DOI
10.1109/22.102975
Filename
102975
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