Circularly polarized evanescent mode radiator

Details Circularly polarized evanescent mode radiator Circularly polarized evanescent mode radiator

1988-11-01

1989-12-05

Gensler, Paul

Wave transmission lines and networks

Wave mode converters

333208, 333246, 333248, 343756, 343786, H01P 116

Patent

active

048855561

ABSTRACT:
A nearly square waveguide below cutoff has a microstrip substrate disposed diagonally therein. A first shunt capacitance is provided by either a conductor formed on the microstrip substrate or a conductor disposed in the waveguide perpendicular to the microstrip substrate. A dielectric window is disposed in the end to provide a shunt capacitance at the opposite end of the waveguide.

REFERENCES:
patent: 3732508 (1973-05-01), Ito et al.
patent: 3758882 (1973-09-01), Morz
patent: 3925740 (1975-12-01), Steensma
patent: 4344048 (1982-08-01), Morz
Reference Data for Radio Engineers, Int. Tel. & Tel. Corp. (Federal Tel. & Radio Corp., 1957), pp. 164-173.
Craven, Waveguide Below Cutoff: A New Type of Microwave Integrated Circuit, Microwave Journal, vol. 13, No. 8, Aug. 1970, pp. 51-58.
Craven et al, Evanescent Mode Microwave Components, Artech House, 1987, Chapter 7, pp. 121-122.

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