Antenna assembly for telecommunication devices

Details Antenna assembly for telecommunication devices Antenna assembly for telecommunication devices

1998-01-16

1999-08-31

Wong, Don

Communications: radio wave antennas

Antennas

With radio cabinet

343700MS, 343770, 343767, H01Q 126

Patent

active

059459549

ABSTRACT:
A planar, compact, multiple-element directive antenna for a hand-held radio frequency transceiver, such as a cellular telephone or PCS device, is provided which has an active radiating conductor element, a dielectric spacing member, and a conductive ground plane. The operative conductive round plane may be provided solely by an existing one internal with the hand-held transceiver, such as a printed wiring board, a metal chassis, or a metallized plastic surface, or by a parallel small ground plane coupled capacitively or directly to the larger transceiver ground plane. The multiple-element directive antenna allows increased range, improved voice/data quality, increased battery life, reduced user exposure to radio frequency radiation, elimination of user antenna adjustments, and reduction of antenna susceptibility to damage.

REFERENCES:
patent: 3183511 (1965-05-01), Ajioka
patent: 3810183 (1974-05-01), Krutsinger et al.
patent: 4410890 (1983-10-01), Davis et al.
patent: 4975711 (1990-12-01), Lee
patent: 5170173 (1992-12-01), Krenz et al.
patent: 5677698 (1997-10-01), Snowdon
patent: 5828343 (1996-03-01), MacDonald, Jr. et al.
patent: 5831578 (1996-09-01), Lefvre

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