3dB Waveguide directional coupler

Details 3dB Waveguide directional coupler 3dB Waveguide directional coupler

1980-02-01

1981-10-27

Gensler, Paul L.

Wave transmission lines and networks

Plural channel systems

Having branched circuits

333125, H01P 518

Patent

active

042976588

ABSTRACT:
A 3dB waveguide directional coupler for coupling two rectangular waveguides of the same dimensions and having parallel longitudinal axes is disclosed. The waveguides to be coupled are joined so that one of the wider side walls of the first waveguide adjoins one of the wider side walls of the second waveguide. The interiors of the two waveguides communicate via an aperture in the adjoining side walls. When energy is input from one end of the first waveguide toward the aperture, virtually all of it is transmitted to the second wave guide, part of the transmitted energy traveling away from the aperture in each direction along the longitudinal axis of the second waveguide. This is preferably achieved by providing a waveguide system in the aperture oriented perpendicular to the longitudinal axes of the first and second waveguides. The waveguide system in the aperture comprises a web plate perpendicular to the longitudinal axes of the first and second waveguides, and first and second conductive plates parallel to the web plate and spaced therefrom by the minimum dimension of the first and second waveguides.

REFERENCES:
patent: 2519734 (1950-08-01), Bethe
patent: 2866166 (1958-12-01), Zaleski
patent: 2876421 (1959-03-01), Riblet

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