Crossed polarization same-zone two-frequency antenna for telecom

Details Crossed polarization same-zone two-frequency antenna for telecom Crossed polarization same-zone two-frequency antenna for telecom

1985-07-12

1988-07-12

LaRoche, Eugene R.

Communications: radio wave antennas

Antennas

With polarization filter or converter

343909, 343840, 343DIG2, H01Q 1522

Patent

active

047573236

ABSTRACT:
The antenna comprises a parabolic reflector (1) and a primary source (2). The reflector (1) comprises a first grating of conductor wires (7) and a second grating of conductor wires (8) which are orthogonal to the wires of the first grating, and with both gratings constituting elliptical reflective surfaces. The sizes of the major and minor axes of the ellipses are determined in such a manner that both operating frequencies of the antenna have identical coverge zones on the surface of the globe.

REFERENCES:
patent: 2483575 (1949-10-01), Cutler
patent: 2736895 (1956-02-01), Cochrane
patent: 2922160 (1960-01-01), Van Atta et al.
patent: 2930039 (1960-03-01), Ruze
patent: 2982961 (1961-05-01), Jones
patent: 3049708 (1962-08-01), Berkowitz
patent: 3119109 (1964-01-01), Miller et al.
patent: 3271171 (1966-09-01), Hannan et al.
patent: 3281850 (1966-10-01), Hannan
patent: 3898667 (1975-08-01), Raab
patent: 4001836 (1977-01-01), Archer et al.
patent: 4625214 (1986-11-01), Parekh

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