Flared microwave feed horns and waveguide transitions

Details Flared microwave feed horns and waveguide transitions Flared microwave feed horns and waveguide transitions

1984-01-11

1986-08-05

Lieberman, Eli

Communications: radio wave antennas

Antennas

Wave guide type

343840, H01Q 1302

Patent

active

046046275

ABSTRACT:
A horn-reflector antenna comprising a paraboloidal reflector for transmitting and receiving microwave energy, and a flared feed horn for guiding microwave energy to and from the reflector, the longitudinal shape of at least a section of the horn at the end where the horn begins to flare outwardly being defined by the equation ##EQU1## where R is the transverse dimension from the longitudinal axis of the horn to the side wall of the horn 1 is the axial distance along the horn measured from the end where the horn begins to flare outwardly, R.sub.1 and R.sub.2 are the radii of the horn at opposite ends of the horn section defined by the equation, L is the axial length of the horn section defined by the equation, and the exponent p has a value greater than two and less than about 7, to effect a substantial reduction in the TM.sub.11 mode level.

REFERENCES:
patent: 3662393 (1972-05-01), Cohn
patent: 4442437 (1984-04-01), Chu et al.

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