Quadrifilar helix antenna

Details Quadrifilar helix antenna Quadrifilar helix antenna

1998-10-13

2000-10-17

Phan, Tho

Communications: radio wave antennas

Antennas

Spiral or helical type

343860, H01Q 136

Patent

active

061338915

ABSTRACT:
A quadrifilar helical antenna is provided having feed points connected to e individual helical antenna elements through a spiral coupling path. The spiral coupling path additionally is wound contrarily to the winding of the helix. Moreover, each path has variable dimensions to provide impedance matching.

REFERENCES:
patent: 4114164 (1978-09-01), Greiser
patent: 4697192 (1987-09-01), Hofer et al.
patent: 5313216 (1994-05-01), Wang et al.
patent: 5346300 (1994-09-01), Yamamoto et al.
patent: 5635945 (1997-06-01), McConnell et al.
patent: 5909196 (1999-06-01), O'Neill

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