DocumentCode
68666
Title
Miniaturised branch-line coupler with ultra-wide high suppression stopband
Author
Zong, B.F. ; Wang, G.M. ; Zhang, C.X. ; Wang, Y.W.
Author_Institution
Air & Missile Defense Coll, Air Force Eng. Univ., Xi´an, China
Volume
50
Issue
19
fYear
2014
fDate
September 11 2014
Firstpage
1365
Lastpage
1367
Abstract
A compact branch-line coupler with an ultra-wide upper stopband is proposed based on a new type of transmission line. Consistent numerical and measurement results of the coupler are shown. The proposed branch-line coupler operating at 0.875 GHz exhibits a stopband from 2.8 to 12.9 GHz with suppression levels better than -20 dB. The occupied size of the proposed branch-line coupler is only 17.6% that of a conventional one operating at the same frequency.
Keywords
coupled transmission lines; microstrip couplers; ultra wideband technology; compact branch-line coupler; frequency 0.875 GHz; frequency 2.8 GHz to 12.9 GHz; miniaturised branch-line coupler; transmission line; ultrawide high suppression stopband;
fLanguage
English
Journal_Title
Electronics Letters
Publisher
iet
ISSN
0013-5194
Type
jour
DOI
10.1049/el.2014.1150
Filename
6898650
Link To Document