Multi-reflector antenna

Details Multi-reflector antenna Multi-reflector antenna

1986-02-25

1989-03-07

Sikes, William L.

Communications: radio wave antennas

Antennas

Wave guide type

343781P, H01Q 1919, H01Q 1516

Patent

active

048110299

ABSTRACT:
A multi-reflector antenna is disclosed which is arranged so that a main reflector surface, a subreflector surface and a primary radiator are electro-magnetically coupled together. When the main reflector is represented by a coordinate z=z(.rho., .psi.) using cylindrical coordinate system (z, .rho., .psi.) in which the direction of radiation of a main beam of the main reflector surface is in correspondence with the z-axis and the subreflector surface is represented by a coordinate r=r(.theta., .phi.) in a vector system using a spherical coordinate system (r, .theta., .phi.) in which the Snell's reference direction of the primary radiator is set to .theta.=0, the said z(.rho., .psi.) and r(.theta., .phi.) are so determined as to satisfy the law of reflection, a condition of constant path length and the following relation:

REFERENCES:
patent: 4145695 (1979-03-01), Gans
patent: 4491848 (1985-01-01), Dragone
patent: 4516130 (1985-05-01), Dragone
patent: 4535338 (1985-08-01), Ohm

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