Antenna

Details Antenna Antenna

1998-11-02

2000-07-25

Wong, Don

Communications: radio wave antennas

Antennas

Spiral or helical type

343702, 3437925, H01Q 136

Patent

active

060941790

ABSTRACT:
An antenna for portable radio apparatus, comprising a conductive filament arranged in a tapering corrugated configuration having an envelope extending from a narrow portion to a wider portion. The conductive filament is arcuately disposed about a longitudinal direction of the tapering configuration, thereby forming a generally tubular antenna. The conductive filament may be fabricated using metal printing technology.

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patent: 5561439 (1996-10-01), Moilanen
patent: 5627550 (1997-05-01), Sanad
patent: 5657028 (1997-08-01), Sanad
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patent: 5828342 (1998-10-01), Hayes et al.
patent: 5872549 (1999-02-01), Huynh et al.
United Kingdom Search Report.

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