Accession Number:

AD0649126

Title:

AN INVESTIGATION OF A VARIABLE WAVEGUIDE COUPLER WITH 360 DEGREES OF PHASE CONTROL,

Descriptive Note:

Corporate Author:

HUGHES AIRCRAFT CO CULVER CITY CALIF ANTENNA DEPT

Report Date:

1966-11-01

Pagination or Media Count:

47.0

Abstract:

A waveguide hybrid coupler was investigated that provides variable control over the phase and amplitude of a signal radiated from a waveguide slot. The control technique was studied theoretically and empirically in two devices, a mechanical unit that incorporated four micrometer-driven probes and an electronic unit that utilized four varactor diodes around the slot. Coupling levels up to -12.3 db were obtained over a 360-degree range of phase control with the mechanical unit and up to -23.0 db over a similar range with the electronic unit. It was found that simple driving functions on the control elements provided theoretically predictable slot phase control, but that coupling variations increased at the higher coupling levels. Author

Subject Categories:

  • Electrical and Electronic Equipment

Distribution Statement:

APPROVED FOR PUBLIC RELEASE