Portable co-located LOS and SATCOM antenna

Details Portable co-located LOS and SATCOM antenna Portable co-located LOS and SATCOM antenna

2006-03-28

2006-03-28

Le, Hoanganh (Department: 2821)

Communications: radio wave antennas

Antennas

Plural antennas spaced a fractional or full wave length apart

C343S839000, C343S761000

Reexamination Certificate

active

07019708

ABSTRACT:
A dual-band, dual-polarization LOS/SATCOM antenna having a plurality of omnidirectional elements surrounding a directional element. When the antenna is in an omnidirectional radiating mode, the directional element is disconnected from the circuit and only the omnidirectional elements radiate. The directional element has radiators at one end. When the antenna is in a directional mode, the omnidirectional elements fold out to be perpendicular to the transmission axis and serve as reflectors for the driving radiators, which also fold to be perpendicular to the transmission axis. The radiators and elements are adjustable in length to provide added gain.

REFERENCES:
patent: 3579244 (1971-05-01), Dempsey et al.
patent: 3665478 (1972-05-01), Dempsey
patent: 5317327 (1994-05-01), Piole
patent: 5469181 (1995-11-01), Yarsunas
patent: 5539419 (1996-07-01), Ogawa et al.
patent: 1 494 318 (2005-01-01), None
patent: 7-94940 (1995-04-01), None
patent: WO 01/80366 (2001-10-01), None
patent: WO 03/079561 (2003-09-01), None
patent: WO 04/042938 (2004-05-01), None
Search Report dated Aug. 2, 2005 for UK Patent Application No. GB0506974.5.

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