Coupled-Strip-Transmission-Line Filters and Directional Couplers

Autor: E.M.T. Jones
Rok vydání: 1956
Předmět:
Zdroj: IEEE Transactions on Microwave Theory and Techniques. 4:75-81
ISSN: 0018-9480
DOI: 10.1109/tmtt.1956.1125022
Popis: This paper describes the theory of operation of coupled strip line tilt ers and directional couplers, and presents information from which these components may be easily designed. Low-pass, band-pass, all-pass, and all-stop filter characteristics are obtained from these coupled lines either by placing open or short circuits at two of the four available terminal pairs, or by interconnecting two of the terminal pairs. Directional couplers having perfect dk-ectivity and constant input impedance at all frequencies, and for all degrees of coupliig, are obtained by placing equal resistive loads at each of the four terminal pairs.
Databáze: OpenAIRE