Title :
Analysis and design of slot-coupled directional couplers between double-sided substrate microstrip lines
Author :
Wong, M.F. ; Fouad Hanna, V. ; Picon, O. ; Baudrand, H.
Author_Institution :
CNET-PAB-STS, Issy-les-Moulineaux, France
Abstract :
The characteristics of a slot-coupled directional coupler between two microstrip lines coupled through a rectangular slot in the common ground plane are studied. First, conformal mapping techniques are used to obtain analytic closed-form expressions for the coupler even and odd mode impedances and propagation constants for any coupler configuration. Secondly, a full-wave analysis is performed using the spectral domain approach to determine the dispersion properties of the coupler parameters. Theoretical and experimental results for a 10 dB coupler at 10 GHz are presented.<>
Keywords :
directional couplers; strip line components; 10 GHz; SHF; common ground plane; conformal mapping techniques; directional couplers; dispersion properties; double-sided substrate; even mode impedance; full-wave analysis; microstrip lines; odd mode impedances; propagation constants; rectangular slot; slot-coupled; spectral domain approach; Closed-form solution; Conformal mapping; Directional couplers; Impedance; Microstrip; Optical coupling; Performance analysis; Propagation constant; Spectral analysis; Strips;
Conference_Titel :
Microwave Symposium Digest, 1991., IEEE MTT-S International
Conference_Location :
Boston, MA, USA
Print_ISBN :
0-87942-591-1
DOI :
10.1109/MWSYM.1991.147114
