Communications: radio wave antennas – Antennas – Spiral or helical type
Patent
1996-07-31
1999-11-16
Wong, Don
Communications: radio wave antennas
Antennas
Spiral or helical type
343853, H01Q 136
Patent
active
059866209
ABSTRACT:
A dual-band coupled-segment helical antenna provides operation in two frequency bands. The dual-band coupled-segment helical antenna includes a radiator portion having two sets of one or more helically wound radiators extending from one end of the radiator portion to the other end of the radiator portion. Radiators of the first set of radiators are comprised of two segments: a first radiator segment extends in a helical fashion from one end of the radiator portion toward the other end of the radiator portion; and a second radiator segment is U-shaped and extends in a helical fashion from the first end of the radiator portion toward the second end of the radiator portion. Radiators of the second set of radiators are comprised of a radiator disposed within said U-shaped segment. The first set of radiators resonates at a first frequency and the second set of radiators resonates at a second frequency thereby providing dual-band operation, with minimal coupling between the frequency bands.
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Miller Russell B.
Ogrod Gregory D.
Phan Tho
Qualcomm Incorporated
Wong Don
LandOfFree
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