Waveguide polarizer having conductive and dielectric loading sla

Wave transmission lines and networks – Wave mode converters

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333248, H01P 1161

Patent

active

045231605

ABSTRACT:
The invention is embodied in a waveguide polarizer of the kind arranged to alter the propagation modes of an incident wave to produce elliptical or circular polarization. The phase shift is produced by the simultaneous use of dimensional perturbation and dielectric loading distributed along a waveguide section. Embodiments are illustrated using square, circular and crossed waveguide sections. The use of relatively light, symmetrical and continuous loading provides improved performance over that which can be attained by discrete element phase shifters or those that make use of only a single kind of loading.

REFERENCES:
patent: 2441574 (1948-05-01), Jaynes
patent: 2764743 (1956-09-01), Robertson
patent: 3758882 (1973-09-01), Morz
patent: 4303900 (1981-12-01), Tourneur
patent: 4344048 (1982-08-01), Morz
patent: 4443800 (1984-04-01), Gaglione
patent: 4458229 (1984-07-01), Landry et al.
La Page, et al., "Westford Antenna System", IEEE Proceedings, May 1964, p. 591.
Kazantsev et al., "Rectangular Waveguides of the Hollow Dielectric Class", 9th European Mircowave Conf. Proceedings, Brighton, Eng., 17-20, Sept. 1979.

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