Title :
Directional Couplers
Author_Institution :
Bell Telephone Laboratories, Holmdel, N.J.
Abstract :
The directional coupler is a device which samples separately the direct and the reflected waves in a transmission line. A simple theory of its operation is derived. Design data and operating characteristics for a typical unit are presented. Several applications which utilize the directional coupler are discussed.
Keywords :
Coupling circuits; Detectors; Directional couplers; Impedance; Laboratories; Power transmission lines; Radio frequency; Senior members; Transmission line measurements; Transmission line theory;
Journal_Title :
Proceedings of the IRE
DOI :
10.1109/JRPROC.1947.231592
