Antenna apparatus and method of forming same

Details Antenna apparatus and method of forming same Antenna apparatus and method of forming same

2007-04-10

2007-04-10

Ho, Tan (Department: 2821)

Communications: radio wave antennas

Antennas

Spiral or helical type

C343S702000

Reexamination Certificate

active

11123307

ABSTRACT:
An antenna provides dual band capability by providing a single feed (102) leading into a helix (104), the helix characterized by a pitch (106) and number of turns (120) varied to provide dual band operation to a portable communication device.

REFERENCES:
patent: 6140973 (2000-10-01), Annamaa et al.
patent: 6201500 (2001-03-01), Fujikawa
patent: 6288681 (2001-09-01), Kim et al.
patent: 6337669 (2002-01-01), Chiang
patent: 6473056 (2002-10-01), Annamaa
patent: 6518938 (2003-02-01), Chaoo
patent: 6597326 (2003-07-01), Chen

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