Title :
Miniaturized Quasi-Lumped Coupled-Line Single-Section and Multisection Directional Couplers
Author :
Wincza, Krzysztof ; Gruszczynski, Slawomir
Author_Institution :
Fac. of Electr. Eng. Automatics, IT & Electron., AGH Univ. of Sci. & Technol., Cracow, Poland
Abstract :
A class of lumped-element coupled-line directional couplers has been investigated. The paper discusses the influence of the number of coupler´s subsections on the overall couplers´ performance. The design procedure for calculating elements of the coupler for the chosen coupling C and the number of coupler´s subsections has been proposed. The design procedure has been experimentally verified by the measurements of a single-section directional coupler. Also, an asymmetric two-section coupler not reported in the literature has been designed using a lumped-element technique, and the experimental results are shown.
Keywords :
directional couplers; coupled-line multi-section directional couplers; coupled-line single-section directional couplers; miniaturized quasi-lumped couplers; Broadband communication; Couplings; Dielectrics; Directional couplers; Inductors; Transmission line measurements; Directional couplers; lumped-element couplers; multisection couplers;
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
DOI :
10.1109/TMTT.2010.2078970
