Communications: radio wave antennas – Antennas – Spiral or helical type
Patent
1998-06-18
2000-02-08
Wong, Don
Communications: radio wave antennas
Antennas
Spiral or helical type
H01Q 136
Patent
active
060232501
ABSTRACT:
An antenna integrates a planar structure, wideband compact design, permitg phasability, into a single structure. The antenna design makes it possible to implement the antenna throughout the entire electromagnetic spectrum with little or no need for impedance matching. The antenna comprises a plurality of exponential-spiral shaped antenna arms in which each of the arms has a radially inner and radially outer end and in which the radially inner ends are spaced rotationally about a common axis, and in which the arms are separated circumferentially from each other in proportion to their distance from the common axis. Each of the spiral antenna arms includes an antenna element having a sinuous portion that has amplitude and period characteristics that vary in proportion to their distance from said common axis. The antenna elements are selectively coupled to an antenna feed.
REFERENCES:
patent: 2990548 (1961-06-01), Wheeler
patent: 3454951 (1969-07-01), Patterson et al.
patent: 3465346 (1969-09-01), Patterson et al.
patent: 3555554 (1971-01-01), Kuo
patent: 3562756 (1971-02-01), Kuo et al.
patent: 3624658 (1971-11-01), Voronoff
patent: 3828351 (1974-08-01), Voronoff
patent: 3906514 (1975-09-01), Phelan
patent: 3949407 (1976-04-01), Jagdmann et al.
patent: 4243993 (1981-01-01), Lamberty et al.
patent: 4605934 (1986-08-01), Andrews
patent: 4608572 (1986-08-01), Blakney et al.
patent: 4630064 (1986-12-01), Andrews et al.
patent: 4636802 (1987-01-01), Middleton
patent: 5053786 (1991-10-01), Silverman et al.
patent: 5220340 (1993-06-01), Shafai
patent: 5227807 (1993-07-01), Bohlman et al.
patent: 5313216 (1994-05-01), Wang et al.
patent: 5451973 (1995-09-01), Walter et al.
patent: 5517206 (1996-05-01), Boone et al.
patent: 5589842 (1996-12-01), Wang et al.
Fendelman Harvey
Kagan Michael A.
Lipovsky Peter A.
Phan Tho
The United States of America as represented by the Secretary of
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