Radio beacon for aerial navigation system

Details Radio beacon for aerial navigation system Radio beacon for aerial navigation system

1977-07-05

1979-04-24

Blum, Theodore M.

Communications: radio wave antennas

Antennas

Balanced doublet - centerfed

343113DE, G01S 144

Patent

active

041515293

ABSTRACT:
An air-navigational beacon, designed to simulate an imaginary circular ben with a multiplicity of pairs of diametrically opposite dipoles excited in cyclic succession, comprises an array of stationary dipole pairs disposed along lines parallel to a given direction. The spacing of the dipoles of each pair varies from one pair to another according to a sinusoidal law in their order of energization. The two dipoles of a pair are energized in relative quadrature and with a signal amplitude proportional to their spacing.

REFERENCES:
patent: 3173093 (1965-03-01), Most et al.
patent: 3503071 (1970-03-01), Earp

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