Array feed for axially symmetric and offset reflectors

Details Array feed for axially symmetric and offset reflectors Array feed for axially symmetric and offset reflectors

1997-03-19

1999-06-15

Wong, Don

Communications: radio wave antennas

Antennas

Microstrip

343840, H01Q 302, H01Q 1912

Patent

active

059126450

ABSTRACT:
In the past, parabolic offset reflector antennas were fed a signal through a corrugated horn in order to optimize field distribution and polarization at the reflector. It has been found that cost savings and other advantages are realized by using an array of radiating patches. The geometrical placement of the radiating patches and the power distribution to each patch is arranged such that radiated energy from the patches sums at the reflector surface to produce the predetermined field distribution and polarization.

REFERENCES:
patent: 1785062 (1930-12-01), Whittle
patent: 3182330 (1965-05-01), Blume
patent: 3811129 (1974-05-01), Holst
patent: 4843400 (1989-06-01), Tsao et al.
patent: 5539415 (1996-07-01), Metzen et al.
Johnson, Richard C., Antenna Engineering Handbook, 3rd ed., McGraw-Hill, Inc. NY, pp. 7-3-4, 20-28-31, 1993.
Current Trends in Antenna Technology and Prospects for the Next Decade A.W. Rudge. IEEE Antennas and Propagation Society Newsletter, Dec. 1983.
Array-fed Reflector Antenna Design and Applications K. Woo. Jet Propulsion Laboratory, California Institute of Technology, USA.

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