Communications: radio wave antennas – Antennas – Spiral or helical type
Patent
1984-08-02
1986-08-12
Lieberman, Eli
Communications: radio wave antennas
Antennas
Spiral or helical type
H01Q 136
Patent
active
046059342
ABSTRACT:
Disclosed is a multiarm spiral antenna for wideband transmission and reception of both right-hand and left-hand circularly polarized electromagnetic energy. Each antenna arm includes a series of cells wherein the impedance of the antenna arm monotonically decreases over a first portion of the cell length and monotonically increases over a second portion of the cell length to thereby provide the signal reflection necessary for mode conversion (operation in both polarization senses) without introducing abrupt impedance transitions. Various cell geometry that can be employed is described.
REFERENCES:
patent: 2958081 (1960-10-01), Dyson
patent: 3344425 (1967-09-01), Webb
patent: 3381297 (1968-04-01), Zisler et al.
patent: 3454951 (1969-07-01), Patterson et al.
patent: 3465346 (1969-09-01), Patterson et al.
patent: 3562756 (1971-02-01), Kuo
patent: 3633210 (1972-01-01), Westerman
patent: 3681772 (1972-08-01), Ingerson
patent: 3787871 (1974-01-01), Reese
patent: 3949407 (1976-04-01), Jagdmann et al.
patent: 3969732 (1976-07-01), Holloway
patent: 4087821 (1978-05-01), Phelan
patent: 4243993 (1981-01-01), Lamberty et al.
Lieberman Eli
The Boeing Company
LandOfFree
Broad band spiral antenna with tapered arm width modulation does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Broad band spiral antenna with tapered arm width modulation, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Broad band spiral antenna with tapered arm width modulation will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1947139