Wave transmission lines and networks – Wave mode converters
Patent
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.
Andrew Corporation
Gensler Paul
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