Title :
New Types of 3-dB Directional Couplers of Microstrip Transmission Lines
Abstract :
In this paper the author has brought forward three new types of 3-dB directional couplers suitable to microstrip circuit. The originality of these couplers is that by using these couplers extraordinary close coupling which is less than 1-d/sup B/ can easily be achieved. An analysis is given to the electric field distribution and the characteristic impedance of the coupling circuit. The designing curves and the design of the 3-dB coupler with experimental data are provided in the paper.
Keywords :
Conductors; Coupling circuits; Dielectrics; Directional couplers; Distributed parameter circuits; Electric potential; Impedance; Microstrip; Strips; Transmission lines;
Conference_Titel :
Microwave Symposium Digest, 1986 IEEE MTT-S International
Conference_Location :
Baltimore, MD, USA
DOI :
10.1109/MWSYM.1986.1132165
