Broad band quad ridged polarizer

Details Broad band quad ridged polarizer Broad band quad ridged polarizer

1998-06-25

2000-08-01

Gensler, Paul

Wave transmission lines and networks

Wave mode converters

333157, H01P 117

Patent

active

060972645

ABSTRACT:
A broad band waveguide polarizer having four axial ridges, one on each wall of the waveguide, is disclosed. The axial ridges are configured to provide different phase velocities for the orthogonal signal components of a linearly polarized input signal. The dimensions of the ridges are selected such that the net phase difference between the signal components is about 90 degrees at a predetermined signal frequency. The quad ridge polarizer may be manufactured as an integral die cast device.

REFERENCES:
patent: 3002163 (1961-09-01), Kahn
patent: 3758882 (1973-09-01), Morz
patent: 4672334 (1987-06-01), Saad
Lier and Schaug-Pettersen, "A Novel Type of Waveguide polarizer with Large Cross-Polar Bandwith", IEEE Transactions on Microwave Theory and Techniques, vol. 36, No. 11, Nov. 1988.
Hoefer and Burton, "Closed-Form Expressions for the Parameters of Finned and Ridge Waveguies", IEEE Transactions on Microwave Theory and Techniques, vol. TT-30, No. 12, Dec. 1982.
Hopfer, "The Design of Ridge Waveguides", IRE Transactions Microwave Theory and Techniques, Oct. 1955.
Hopfer, The Design of Ridged Waveguides, IRE Trans. on MTT, pp. 20-29, Oct. 1955.

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