Title :
Quasi-Static Analysis of a New Wide Band Directional Coupler Using CPW Multilayer Technology
Author :
Nedil, Mourad ; Denidni, Tayeb A.
Author_Institution :
INRS-EMT, Univ. de Quebec, Montreal, Que.
Abstract :
In this paper, a quasi-static analysis of a new wideband directional coupler employing CPW multilayer slot-coupled technique is analyzed and implemented. This coupler uses two CPW lines coupled through a hexagonal slot etched on a common ground plane located between these lines. Firstly, a conformal mapping technique is used to obtain analytic closed-form expressions for the coupler even- and odd-mode characteristic impedances. Secondly, to validate the proposed approach, a prototype of directional coupler was designed, fabricated and tested. Simulation and experimental results show a good performance, especially in term of bandwidth which is 6 GHz (~100 %)
Keywords :
conformal mapping; coplanar waveguides; directional couplers; CPW lines; CPW multilayer slot-coupled technique; CPW multilayer technology; closed-form expressions; conformal mapping technique; even-mode characteristic impedances; odd-mode characteristic impedances; quasistatic analysis; wideband directional coupler; Closed-form solution; Conformal mapping; Coplanar waveguides; Directional couplers; Etching; Impedance; Nonhomogeneous media; Prototypes; Testing; Wideband; CPW multilayer coupler; conformal mapping; directional coupler; wideband coupler;
Conference_Titel :
Microwave Symposium Digest, 2006. IEEE MTT-S International
Conference_Location :
San Francisco, CA
Print_ISBN :
0-7803-9541-7
Electronic_ISBN :
0149-645X
DOI :
10.1109/MWSYM.2006.249390
