Dual layer resonant quadrifilar helix antenna

Details Dual layer resonant quadrifilar helix antenna Dual layer resonant quadrifilar helix antenna

1990-11-05

1993-10-19

Hille, Rolf

Communications: radio wave antennas

Antennas

Spiral or helical type

343850, H01Q 136, H01Q 2120

Patent

active

052550052

ABSTRACT:
Disclosed is a new antenna structure having a quasi-hemispherical radiation pattern and capable of having a relatively wide passband, so that it is possible to define two neighboring transmission sub-bands therein or, again, a single wide transmission band. The antenna is of the type comprising a quadrifilar helix (11) formed by two bifilar helices (11.sub.1, 11.sub.2, 11.sub.3, 11.sub.4) positioned orthogonally and excited in phase quadrature, and including at least one second quadrifilar helix that is coaxial and electromagnetically coupled with said first quadrifilar helix (11). Preferred application to L band communications among geostationary satellites or transiting satellites with moving bodies fitted out with such antennas.

REFERENCES:
patent: 3906509 (1975-09-01), DuHamel
patent: 4148030 (1979-04-01), Foldes
patent: 4554554 (1985-11-01), Olesen et al.
Kilgus, "Resonant Quadrifilar Helix Design", The Microwave Journal, Dec. 1970, pp. 49-54.
UHF Satellite Array Nulls Adjacent Signals, Microwaves & RF, Mar. 1984 by J. L. Wong, et al.
K. M. Keen, "Developing a Standard-C Antenna", MSN & Ct., Jun., 1988.
J. Huang, et al., "L-Band Satellite Communication Antennas for U.S. Coast Guard Boats, Land Vehicles, and Aircraft", IEEE Ap-J Int. Symp. Digest, 1987.

Affiliated with

Also associated with

Rating

Dual layer resonant quadrifilar helix antenna does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Dual layer resonant quadrifilar helix antenna, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Dual layer resonant quadrifilar helix antenna will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1355202