Wide-beam horn feed for parabolic antennas

Details Wide-beam horn feed for parabolic antennas Wide-beam horn feed for parabolic antennas

1982-07-26

1987-08-25

Lieberman, Eli

Communications: radio wave antennas

Antennas

Wave guide type

H01Q 1302

Patent

active

RE0324850

ABSTRACT:
Current-flow is suppressed on the outer surface of the horn except in a small endmost region. A reflector surrounds the horn, spaced rearwardly from the mouth. A choke used for the suppression blocks current-flow between the horn and the reflector. A high degree of uniformity of the radiation pattern over a wide forward angle is achieved.

REFERENCES:
patent: 2414376 (1947-01-01), Heim
patent: 2460869 (1949-02-01), Braden
patent: 2643338 (1953-06-01), Brady
patent: 2742640 (1956-04-01), Cronin
patent: 2881432 (1959-04-01), Hatkin
patent: 3209360 (1965-09-01), Schuster
patent: 3212096 (1965-10-01), Schuster et al.
patent: 3216017 (1965-11-01), Moore
patent: 3216018 (1965-11-01), Kay
patent: 3274603 (1966-01-01), Kay
patent: 3434146 (1969-03-01), Petrich
Geyer; Circular Horn Radiator with Annular Wave Traps, Frequenz, BD 20/1966 NR.I, pp. 22-28.
LaGrone and Roberts, "Minor Lobe Suppression in a Rectangular Horn Antenna Through the Utilization of a High Impedance Choke Flange," IEEE Transactions on Antennas and Propagation, vol. AP-14, No. 1, pp. 102-104 (Jan. 1964).
L. Thorel, The Antenna, pp. 250-252.

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