Communications: radio wave antennas – Antennas – Balanced doublet - centerfed
Patent
1977-12-08
1978-10-24
Blum, Theodore M.
Communications: radio wave antennas
Antennas
Balanced doublet - centerfed
343854, H04B 700
Patent
active
041224531
ABSTRACT:
A distribution network provides signals that are representative of the sum of the amplitudes of values of the first, second and third terms of a Fourier cosine series expansion of the discrete inverse Fourier transform of a desired pattern of excitation of a purality of radiators. The signals are coupled to an orthogonal beam matrix via a plurality of phase shifters to provide a signal representation of an approximation of the inverse transform. The matrix is connected to the radiators whereby the desired pattern of excitation is applied to the radiators.
REFERENCES:
C. J. Sletten, Reflector Antennas, Chap. 17, Antenna Theory Part 2, McGraw Hill, 1969, pp. 60, 61.
S. K. Buchmeyer, Corrugations Lock Horns with Poor Beamshapes, Microwaves, Jan. 1973, p. 44.
Blum Theodore M.
Christoffersen H.
Lazar Joseph D.
RCA Corporation
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