Antenna apparatus

Details Antenna apparatus Antenna apparatus

1997-10-30

2000-03-07

Wong, Don

Communications: radio wave antennas

Antennas

With spaced or external radio wave refractor

343755, 343761, 343909, H01Q 1906

Patent

active

060346426

ABSTRACT:
An antenna apparatus for use as in an automobile collision warning system has a primary radiator for radiating a high-frequency radio wave beam, a reflecting member for reflecting the radio wave beam, an actuating mechanism for actuating the reflecting member, and a lens such as a dielectric lens for converging the radio wave beam reflected by the reflecting member to reduce an angle of divergence of the radio wave beam.

REFERENCES:
patent: 1931980 (1933-10-01), Becker
patent: 2452349 (1948-10-01), Becker
patent: 2531454 (1950-11-01), Marshall
patent: 2595271 (1992-05-01), Kline
patent: 3848255 (1974-11-01), Migdal
patent: 3936835 (1976-02-01), Phelan
patent: 4387391 (1983-06-01), Hecker
patent: 4939526 (1990-07-01), Tsuda
patent: 5227784 (1993-07-01), Masamori et al.
patent: 5526008 (1996-06-01), Meserole
94 GHz Three-Dimensional Imaging Radar Sensor for Autonomous Vehicles, 8099 IEEE Transactions on Microwave Theory and Techniques, May 1991, No. 5.

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