DocumentCode
926307
Title
Backward directional coupler for weak coupling of double-sided microstrip lines using longitudinal double-slots
Author
Bertuch, T.
Author_Institution
Res. Inst. for High Frequency Phys. & Radar Technol., Wachtberg-Werthhoven, Germany
Volume
40
Issue
5
fYear
2004
fDate
3/4/2004 12:00:00 AM
Firstpage
309
Lastpage
310
Abstract
A backward directional coupler for double-sided microstrip lines is presented. Aligned microstrip lines are coupled via two parallel slots in the common ground plane. This design works well for weak coupling smaller than 20 dB and has some advantages over the single-slot coupler. Geometrical dimensions of the proposed coupler design are presented for coupling values of 20, 25 and 30 dB, together with measurements for a 30 dB coupler.
Keywords
electromagnetic coupling; microstrip directional couplers; microwave propagation; slot line components; 20 dB; 25 dB; 30 dB; aligned microstrip lines; backward directional coupler; double-sided microstrip lines; ground plane; longitudinal double-slots; parallel slots; single-slot coupler design; weak coupling;
fLanguage
English
Journal_Title
Electronics Letters
Publisher
iet
ISSN
0013-5194
Type
jour
DOI
10.1049/el:20040209
Filename
1273946
Link To Document