Overmoded tapered waveguide transition having phase shifted high

Details Overmoded tapered waveguide transition having phase shifted high Overmoded tapered waveguide transition having phase shifted high

1983-05-31

1985-11-12

LaRoche, Eugene R.

Wave transmission lines and networks

Wave mode converters

333 34, 333157, 333251, H01P 1162

Patent

active

045531129

ABSTRACT:
A phased-overmoded, tapered waveguide transition has a central section which is tapered linearly in the longitudinal direction and two end sections which are tapered curvilinearly in the longitudinal direction. One of the end sections and at least a portion of the other end section are overmoded and, therefore, give rise to higher order modes of the desired microwave signals propagated therethrough. The lineraly tapered central section shifts the phase of higher order modes generated at one end of the transition so that at least a major portion of such higher order modes is cancelled by higher order modes generated at the other end of the transition.

REFERENCES:
patent: 3050701 (1962-08-01), Tang
patent: 3421086 (1969-01-01), Medford
patent: 3569871 (1971-03-01), Tomigasu
patent: 3662393 (1972-05-01), Cohn
patent: 3896449 (1975-07-01), Blume
Sporleder and Unger "Waveguide Tapers, Transition and Couplers", Gradual Waveguide Transitions, (1979) pp. 220-228.
Young, L. ed., "Advances in Microwaves", Mode Conversion in Waveguides and Transitions, pp. 328-335.
Tang, C. C. H., "Optimization of Waveguide Tapers Capable of Multimode Propagation", IRE Transactions on Microwave Theory and Technique, (Sep. 1961) pp. 442-452.

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