DocumentCode
1514996
Title
Lowpass filter with large rejection through the entire W-band
Author
Zhu, Z.B. ; Lin, X.Q. ; Jin, J.Y. ; Jiang, Yizhang ; Fan, Y.
Author_Institution
Nat. Key Lab. of Space Microwave Technol., China Acad. of Space Technol., Xi´an, China
Volume
48
Issue
10
fYear
2012
Firstpage
577
Lastpage
578
Abstract
A novel modified split ring resonator (MSRR) cell with compact dimension, wide stopband and deep transmission zeros is proposed. A relative experimental formula is induced. Then, a novel lowpass filter is designed by cascading three MSRR cells. Large rejection through the entire W-band is obtained by carefully choosing three transmission zeros of MSRRs in the lower, the middle and the higher frequencies, respectively. A rejection level of more than 35.89 dB is achieved from 75 to 110 GHz. In contrast, a high-low impedance lowpass filter is optimally designed with similar dimensions, the largest rejection of which is only 23.56 dB. It is even less than the least rejection level of our proposed filter.
Keywords
low-pass filters; millimetre wave filters; millimetre wave resonators; MSRR cell; W-band; deep transmission zeros; frequency 75 GHz to 110 GHz; high-low impedance lowpass filter; modified split ring resonator cell; relative experimental formula; wide stopband transmission zeros;
fLanguage
English
Journal_Title
Electronics Letters
Publisher
iet
ISSN
0013-5194
Type
jour
DOI
10.1049/el.2012.0478
Filename
6198530
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