Accession Number : ADD009981

Title :   Dielectric Waveguide Ferrite Modulator/Switch.

Descriptive Note : Patent Application,

Corporate Author : DEPARTMENT OF THE ARMY WASHINGTON DC

Personal Author(s) : Stern,Richard A ; Babbitt,Richard W

Report Date : 01 Dec 1982

Pagination or Media Count : 27

Abstract : This invention relates generally to the field of dielectric waveguide transmission line components operating in the millimeter wave frequency region, and more particularly, to a modular or switch for controlling electromagnetic wave propagation in a dielectric waveguide circuit. In millimeter-wave radar and communications systems where size, weight, efficiency and cost often dictate the use of the dielectric waveguide as the low-loss millimeter wave transmission line medium, switches are often required in order to module millimeter wave energy for systems applications or to isolate sensitive receiver components from damaging transmitter energy. While the previous art in millimeter-wave switches is rather limited, earlier switch designs for use in metal waveguides operating in the millimeter wave region have centered around the use of a metal waveguide junction having a ferrite element to which an axial magnetic biasing field is applied to alter the effective permeability of the ferrite such that energy propagation in the guide is controlled.

Descriptors :   *Patent applications, *Waveguide switches, *Phase modulation, *Dielectric waveguides, *Ferrites, Electromagnetic scattering, K band, Millimeter waves

Subject Categories : Electrical and Electronic Equipment

Distribution Statement : APPROVED FOR PUBLIC RELEASE