REDUCED SIDE TRANSMISSION LINE USING CAPACITIVE LOADING

摘要

A capacitively loaded multilevel transmission line network for operation at a microwave frequency .function. is disclosed wherein microstrip conductors are disposed over or under a uniplanar transmission line (UTL), electrically connected thereto at or near opposing ends of the UTL and coupled to portions of the UTL separated therefrom by a thin dielectric film. The microstrip conductors and the portions of the UTL coupled thereto form thin- film microstrip (TFMS) shunt stubs capacitively loading the ends of the UTL for increasing i ts electrical length. The present invention enables considerable size reduction of microwa ve circuits having uniplanar transmission lines.