Communications: radio wave antennas – Antennas – With coupling network or impedance in the leadin
Patent
1988-11-21
1991-01-08
Hille, Rolf
Communications: radio wave antennas
Antennas
With coupling network or impedance in the leadin
343836, H01Q 2100
Patent
active
049839888
ABSTRACT:
The present invention will yield enhanced gain over a conventional antenna system by taking advantage of combining directional antennae. In one embodiment, the invention utilizes four 10 dB dipole, vertically-polarized, omni-directional antennae having a reflector added to each one to limit the horizontal beamwidth to 90.degree. and increase the gain to 16 dB. The vertical beamwidth remains at 7.degree.. By utilizing four of these antennae and utilizing power combining hybrids to connect each of the two opposed antennae together, excess gain over a 10 dB omni-directional system will be obtained. The effective antenna gain is equal to the directional antenna gain minus the omni-directional antenna gain minus the hybrid loss. Thus, the vertical beamwidth and physical height of the antenna are preserved with the increase in gain at the cost of a little antenna complexity.
REFERENCES:
patent: 2867804 (1959-01-01), Gihring
patent: 3064212 (1962-11-01), Alford
patent: 3545001 (1970-12-01), Giller
patent: 4101836 (1978-07-01), Craig et al.
patent: 4101901 (1978-07-01), Kommrusch
patent: 4103304 (1978-07-01), Burnham et al.
patent: 4153878 (1979-05-01), Osborn
patent: 4170759 (1979-10-01), Stemple et al.
patent: 4213132 (1980-07-01), Davidson
patent: 4317229 (1982-02-01), Craig et al.
patent: 4446465 (1984-05-01), Donovan
patent: 4519096 (1985-05-01), Cerny, Jr.
patent: 4814777 (1989-03-01), Monser
Brown Peter Toby
E-Systems Inc.
Hille Rolf
Meier Harold E.
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