Quadrupole adcock direction finder and antenna therefor
AssigneeSouthwest Research Institute
InventorsTerence C. Green, William G. Guion, Douglas N. Travers, William M. Sherrill
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Abstract
A plurality of dipoles is arranged and connected to form a quadrupole Adcock Antenna system which is connected with direction finding circuitry to define a direction finder system of which two embodiments are disclosed. The system responds to any transmitter to be located.
Claims39
An antenna system comprising a plurality of dipole elements arranged as an electric field sampling antenna system, wherein output signals of said dipole elements are summed into two groups such that the signal difference of said two groups forms a quadrupole azimuth response.
An antenna system comprised of dipole elements which are constructed and arranged to form an output signal given by
- E = e.sub.max sin.sup.3 .theta. cos 2.phi.
- Where E.sub.max = vertically polarized portion of incident radiation
- .theta. = incidence angle
- .phi. = azimuth angle
Dependencies are inferred from the claim text.