Title :
Analysis and design of a circular disc 3 dB coupler
Author :
Bialkowski, Marek E. ; Jellett, Shaun T.
Author_Institution :
Dept. of Electr. & Comput. Eng., Queensland Univ., St. Lucia, Qld., Australia
fDate :
8/1/1994 12:00:00 AM
Abstract :
A 3 dB quadrature hybrid in the form of a 4-port microstrip circular disc, is investigated experimentally and theoretically. The hybrid consists of additional reactive stubs and impedance steps to achieve greater operational bandwidth. A relative bandwidth of over 20% is easily obtained for this device
Keywords :
microstrip components; multiport networks; waveguide couplers; 4-port microstrip circular disc; circular disc 3 dB coupler; impedance steps; operational bandwidth; quadrature hybrid; reactive stubs; Bandwidth; Couplings; Hybrid junctions; Impedance; Microstrip; Microwave frequencies; Power transmission lines; Symmetric matrices; Transmission line matrix methods; Transmission line theory;
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
