Title :
Applications of the finite difference techniques to the compensated VIP 3 dB directional coupler
Author :
Zhao, Chuandong ; Awai, Ikuo
Author_Institution :
Dept. of Electr. & Electron. Eng., Yamaguchi Univ., Ube, Japan
fDate :
11/1/1996 12:00:00 AM
Abstract :
A new and simple compensated structure for a vertically installed planar (VIP) 3 dB directional coupler has been studied theoretically as well as experimentally by combining an improved 2-D-general finite difference (2-D-GFD) design procedure with a three-dimensional finite difference time domain (3-D-FDTD) method. The obtained full wave analysis results agree well with the measured ones. The investigations have shown that with this planar compensated structure, a better performance of the VIP coupler in the L-band can be realized by only using the same kind of dielectric substrate for its vertical and horizontal one
Keywords :
UHF couplers; compensation; directional couplers; finite difference methods; finite difference time-domain analysis; microstrip directional couplers; microwave devices; 2D general finite difference method; 3D FDTD method; L-band; compensated structure; dielectric substrate; directional coupler; finite difference techniques; full wave analysis; vertically installed planar coupler; Coupling circuits; Dielectric measurements; Dielectric substrates; Directional couplers; Finite difference methods; L-band; Manufacturing; Permittivity; Structural discs; Time domain analysis;
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
