Rectangular to elliptical waveguide connection

Details Rectangular to elliptical waveguide connection Rectangular to elliptical waveguide connection

1983-11-22

1985-09-10

Gensler, Paul

Wave transmission lines and networks

Wave mode converters

333 35, 333251, H01P 116, H01P 508

Patent

active

045409595

ABSTRACT:
A waveguide connection formed between a rectangular waveguide (11) and an elliptical waveguide (12) having a cutoff frequency and impedance different from those of the rectangular waveguide (11) comprises an inhomogeneous stepped transformer (10) having multiple sections (31,32,33) all having inside dimensions small enough to cutoff the first excitable higher order mode in a pre-selected frequency band, each section (31,32,33) of the transformer having an elongated transverse cross section which is symmetrical about mutually perpendicular transverse axes (X,Y) which are common to those of the waveguides (11,12), the dimensions of the said cross section increasing progressively from step to step in all four quadrants along the length of the transformer in the direction of both transverse axes (X,Y) so that both the cutoff frequency and the impedance of the transformer (10) vary monotonically along the length of the transformer (10).

REFERENCES:
patent: 2432093 (1947-12-01), Fox
patent: 2767380 (1956-10-01), Zobel
patent: 3019399 (1962-01-01), Lanciani et al.
patent: 3336543 (1967-08-01), Johnson et al.

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