DocumentCode
1408651
Title
Design of new hybrid-ring, directional coupler using λ/8 or λ/6 sections
Author
Kim, Dong II ; Yang, Gyu-Sik
Author_Institution
Dept. of Electron. & Commun. Eng., Korea Maritime Univ., Pusan, South Korea
Volume
39
Issue
10
fYear
1991
fDate
10/1/1991 12:00:00 AM
Firstpage
1779
Lastpage
1784
Abstract
The authors propose a design method for 1.25 λ-ring and 7λ/6-ring 3-dB directional couplers using λ/8 and λ/6 sections, respectively. In addition, the frequency characteristics of the couplings together with the isolations, the return losses, and the phase differences between the output ports are calculated. The method was experimentally verified for a microstrip network, proving its validity for a microwave component with the basic λ/8 and λ/6 sections proposed
Keywords
S-parameters; directional couplers; equivalent circuits; losses; strip line components; λ/6 sections; λ/8 sections; 3 dB type; design method; directional coupler; frequency characteristics; hybrid-ring; isolations; microstrip network; microwave component; phase differences; return losses; Admittance; Antenna arrays; Antenna feeds; Arm; Design methodology; Dipole antennas; Directional couplers; Directive antennas; Frequency; Power dividers;
fLanguage
English
Journal_Title
Microwave Theory and Techniques, IEEE Transactions on
Publisher
ieee
ISSN
0018-9480
Type
jour
DOI
10.1109/22.88553
Filename
88553
Link To Document