Communications: radio wave antennas – Antennas – Spiral or helical type
Patent
1992-02-12
1994-03-29
Hajec, Donald
Communications: radio wave antennas
Antennas
Spiral or helical type
343749, H01Q 136, H01Q 1108
Patent
active
052989100
ABSTRACT:
An antenna for radio apparatus comprises a first conductor taking a helical form, a second conductor which extends to and fro in sequence substantially in a direction of the center axis of the helical form of the first conductor to take, as a whole, a meandering form which is spaced apart from the first conductor and surrounds the center axis, and a dielectric member which lies at least between the first and second conductors. A portion of the first conductor is electrically connected to a portion of the second conductor, and either a portion of the first conductor or a portion of the second conductor acts as a feeding point.
REFERENCES:
patent: 4148030 (1979-04-01), Foldes
Ohnishi Masami
Takei Ken
Hajec Donald
Hitachi , Ltd.
Le Hoang-anh
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