Title :
Analysis and design of slot-coupled directional couplers between double-sided substrate microstrip lines
Author :
Wong, Man-Fai ; Hanna, Victor Fouad ; Picon, Odile ; Baudrand, Henri
Author_Institution :
CNET-PAB-STS, Issy-les-Moulineaux, France
fDate :
12/1/1991 12:00:00 AM
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. Conformal mapping techniques are used to obtain analytic closed-form expressions for the coupler´s even and odd-mode impedance and propagation constants for any coupler configuration. Using the spectral domain approach, a full-wave analysis is performed to determine the dispersion properties of coupler parameters. Theoretical and experimental results for a 10-dB coupler at 10 GHz are presented
Keywords :
directional couplers; dispersion (wave); electric impedance; strip line components; waveguide theory; 10 GHz; 10-dB coupler; common ground plane; conformal mapping techniques; directional couplers; dispersion properties; double-sided substrate; even-mode impedance; full-wave analysis; microstrip lines; odd-mode impedance; propagation constants; rectangular slot; slot-coupled; spectral domain approach; Capacitance; Closed-form solution; Conformal mapping; Directional couplers; Impedance; Magnetic analysis; Microstrip; Optical coupling; Performance analysis; Propagation constant;
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
