Small helical antenna with non-directional radiation pattern

Details Small helical antenna with non-directional radiation pattern Small helical antenna with non-directional radiation pattern

1998-03-11

2000-03-07

Wong, Don

Communications: radio wave antennas

Antennas

Spiral or helical type

343702, 343843, H01Q 136, H01Q 124, H01Q 1100

Patent

active

060346507

ABSTRACT:
A small helical antenna with broad fan radiation pattern provides easy impedance matching and high radiation efficiency. It is composed of a dielectric cylinder, a plurality of radiation conductors arranged on the outer surface of the dielectric cylinder, a matching conductor arranged on the upper inner surface of the dielectric cylinder that cancels inductive reactance, and a plurality of feeder conductors arranged near the radiation conductors on the lower inner surface of the dielectric cylinder and lowering the impedance of the helical antenna.

REFERENCES:
patent: 5467096 (1995-11-01), Takamoro et al.
patent: 5541617 (1996-07-01), Connelly et al.
patent: 5668559 (1997-09-01), Baro
patent: 5678201 (1997-10-01), Thill
patent: 5706019 (1998-01-01), Darden, IV et al.
patent: 5754156 (1998-05-01), Knowles et al.
patent: 5828348 (1998-10-01), Tassoudji et al.
By A. Sharaiha et al., "Printed quadrifilar resonant helix antenna with intergrated feeding network", Electronics Letters, vol. 33, No. 4, Feb. 13, 1997, pp. 256-257.

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