Communications: radio wave antennas – Antennas – Spiral or helical type
Patent
1997-04-29
1998-11-17
Le, Hoanganh T.
Communications: radio wave antennas
Antennas
Spiral or helical type
343700MS, 343853, H01Q 1108
Patent
active
058382852
ABSTRACT:
A wide beamwidth antenna system (100) having a number of monopole antenna elements (102-108) disposed on at least one surface (111,113) of a single, flexible dielectric substrate (101), a number of antenna feed members (110-116), disposed on the first surface (111) of the dielectric substrate (101), each antenna feed member (110-116) being respectively coupled to one of the monopole antenna elements (102-108), a system feed member (118), disposed on the first surface (111) of the dielectric substrate (101), a first power splitter (120), disposed on the first surface (111) of the dielectric substrate (101) and coupled between the system feed member (118) and the first one of the monopole antennae (102) and a first phase shifter (130), disposed on the first surface (111) of the dielectric substrate (101) and coupled between the first (102) and the second (104) monopole antennae. A ground plane (140) is disposed on a portion of the second surface (113) of the dielectric substrate (101).
REFERENCES:
patent: 5075691 (1991-12-01), Garay et al.
patent: 5134422 (1992-07-01), Auriol
patent: 5198831 (1993-03-01), Burrell et al.
patent: 5485170 (1996-01-01), McCarrick
Balzano Quirino
Garay Oscar M.
Tay Roger Yew-Siow
Hillman Val Jean F.
Le Hoanganh T.
Motorola Inc.
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