Communications: radio wave antennas – Antennas – Spiral or helical type
Patent
1996-04-30
1999-11-23
Le, Hoanganh
Communications: radio wave antennas
Antennas
Spiral or helical type
343702, H01Q 136, H01Q 124
Patent
active
059908475
ABSTRACT:
A coupled multi-segment helical antenna is provided having a length that is shorter than otherwise obtainable for a conventional half-wavelength antenna. The coupled multi-segment helical antenna includes radiator portion having a plurality of helically wound radiators extending from one end of the radiator portion to the other end of the radiator portion. Each radiator is made up of a set of two or more segments. A first segment extends in a helical fashion from the first end of the radiator portion toward the second end of the radiator portion. The second segment extends in a helical fashion from the second end of the radiator portion toward the first end of the radiator portion, wherein a portion of the first radiator segment is in proximity with a portion of the second radiator segment such that the first and second radiator segments are electromagnetically coupled to one another.
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Filipovic Daniel
Tassoudji Ali
Le Hoang-anh
Miller Russell B.
Ogrod Gregory D.
Qualcomm Incorporated
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