Electrical transmission or interconnection systems – Vehicle mounted systems – Automobile
Patent
1996-04-25
1998-03-03
Shoop, Jr., William M.
Electrical transmission or interconnection systems
Vehicle mounted systems
Automobile
307 101, 307 91, 34082569, 34082572, 343711, 343759, 343796, H01Q 1108, H01Q 140
Patent
active
057239126
ABSTRACT:
A vehicle controller is presented for use in a remote keyless entry system for controlling a vehicle device function. The controller includes a receiver for receiving a RF request signal including a security code uniquely identifying a portable transmitter that is authorized entry into the vehicle and for controlling access to the vehicle when the received security code matches a prestored security code. A circuit board carries the receiver and a flat ground plane. A helical antenna is mounted on the circuit board and includes an elongated conductive member having one end electrically connected to the receiver means and an opposite free end. The conductive member is helically coiled about a helical axis intermediate the ends thereof with the helical axis being perpendicular to the ground plane. The antenna is configured to provide an omni-directional radiation pattern about the helical axis.
REFERENCES:
patent: 3111669 (1963-11-01), Walsh
patent: 4101899 (1978-07-01), Jones, Jr.
patent: 4161737 (1979-07-01), Albright
patent: 4742359 (1988-05-01), Ishino
patent: 4760394 (1988-07-01), Takeuchi
patent: 4764773 (1988-08-01), Larsen
patent: 4811024 (1989-03-01), Ohe
patent: 4881148 (1989-11-01), Lambropoulos et al.
patent: 4973958 (1990-11-01), Hirano et al.
patent: 5006861 (1991-04-01), Miller
patent: 5278573 (1994-01-01), Siikarla
patent: 5341149 (1994-08-01), Valimaa
patent: 5442341 (1995-08-01), Lambropoulos
patent: 5467096 (1995-11-01), Takamoro
patent: 5499022 (1996-03-01), Boschini
Ahrabian Mahmood
Sullivan William P.
Ganjian Peter
Shoop Jr. William M.
TRW Inc.
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