DocumentCode
18538
Title
Wide stopband substrate integrated waveguide filter using corner cavities
Author
Zhu, Feida ; Hong, Wei ; Chen, Jim X. ; Wu, Kaijie
Author_Institution
State Key Lab. of Millimeter Waves, Southeast Univ., Nanjing, China
Volume
49
Issue
1
fYear
2013
fDate
January 3 2013
Firstpage
50
Lastpage
52
Abstract
A type of substrate integrated waveguide (SIW) `corner cavity` is proposed. For each corner cavity, two transmission zeros (TZs) can be introduced and the location of either TZ can easily be controlled by adjusting suitable geometrical parameters. Using the corner cavities, a novel SIW filter with wide stopband characteristic is implemented. The central frequency of the filter is 20 GHz, and the first spurious appears at about 40 GHz, which is two times the central frequency. In addition, the measured stopband attenuation of the filter is better than 50 dB from 21.24 to 37.71 GHz.
Keywords
band-stop filters; microwave filters; waveguide filters; SIW filter; TZ; corner cavities; frequency 20 GHz; frequency 21.24 GHz to 37.71 GHz; geometrical parameters; stopband attenuation; transmission zeros; wide stopband substrate integrated waveguide filter;
fLanguage
English
Journal_Title
Electronics Letters
Publisher
iet
ISSN
0013-5194
Type
jour
DOI
10.1049/el.2012.3891
Filename
6415443
Link To Document