Ridged waveguide to rectangular waveguide adaptor useful for fee

Details Ridged waveguide to rectangular waveguide adaptor useful for fee Ridged waveguide to rectangular waveguide adaptor useful for fee

1985-12-16

1987-06-16

Gensler, Paul

Communications: radio wave antennas

Antennas

Wave guide type

333 21A, 333 34, 333254, 343786, H01Q 1300, H01P 1165

Patent

active

046739467

ABSTRACT:
A compact adaptor is provided for making transition from ridged waveguide to rectangular waveguide while simultaneously imparting spatial reorientation of associated electric and magnetic fields. The adaptor is especially useful for feeding a phased array of radiating slots (or other structures) where adjacent radiating structures are preferably spaced from one another on the order of a half wavelength and fed with the magnetic field vectors oriented parallel to such inter-element array spacing dimensions. In the exemplary embodiment, a transition from double-ridged waveguide to rectangular waveguide is effected through an electrically short (e.g., 1/8th to 1/4th wavelength) non-resonant cavity using oppositely tapered continuations of the ridged waveguide walls (acting as a TEM parallel transmission line) to opposing walls of a rectangular waveguide port which is spatially oriented transverse to the ridged waveguide.

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