Microwave phase-shifting apparatus

Details Microwave phase-shifting apparatus Microwave phase-shifting apparatus

1982-04-09

1983-12-13

Nussbaum, Marvin L.

Wave transmission lines and networks

Coupling networks

Delay lines including long line elements

333 21A, 333 21R, 333156, H01P 118, H01P 1165

Patent

active

044207298

ABSTRACT:
Microwave phase-shifting apparatus includes a section (20) of waveguide of circular cross-section having a closed end (23) and an open end. A fixed phase-shifting member (20) is located within the section to convert plane-polarized incident energy to circular polarization. A rotatable shaft (27) of dielectric material projects through the end wall of the section along the longitudinal axis, and carries a rotatable element (28). This element is of such a form and in such a position that linearly-polarized microwave energy entering the waveguide section is reflected out of the section with a reflection coefficient having a phase angle component which may be continuously adjusted over a range of 360.degree. by rotation of the shaft, in either direction.

REFERENCES:
patent: 2438119 (1948-03-01), Fox
patent: 2530818 (1950-11-01), Fox
patent: 2599753 (1952-06-01), Fox
patent: 2783439 (1957-02-01), Whitehorn
patent: 3154754 (1964-10-01), De Ronde

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