Antenna system for millimeter wave length communication systems

Details Antenna system for millimeter wave length communication systems Antenna system for millimeter wave length communication systems

1998-03-06

2000-04-18

Wong, Don

Communications: radio wave antennas

Antennas

Slot type

343700MS, H01B 142

Patent

active

060520949

ABSTRACT:
The effect of rain wetting a planar array antenna is reduced substantially by mounting the antenna with its radiating face facing downwards on an angle .alpha. of about 30-80.degree. to the horizontal and adjusting the angle .theta. of the main beam of the planar array antenna to its radiating face so that the angle .theta. of the main beam to the radiating face of the antenna and the angle .alpha. of the radiating face to the horizontal combine to direct the main beam at the elevation angle .omega. toward a selected target.

REFERENCES:
patent: 3440659 (1969-04-01), Kreitzberg
patent: 3918065 (1975-11-01), Hutchison et al.
patent: 5440318 (1995-08-01), Butland et al.
patent: 5600337 (1997-02-01), Cassel
patent: 5724042 (1998-03-01), Komatsu et al.
"Wet Antenna Effect on VSAT Rain Margin" Cheah: IEEE Transactions on Communications vol. 41, No. 8, Aug. 1995.

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