Communications: radio wave antennas – Antennas – Wave guide type
Reexamination Certificate
2008-04-03
2009-11-24
Dinh, Trinh V (Department: 2821)
Communications: radio wave antennas
Antennas
Wave guide type
C343S772000, C343S771000, C343S773000
Reexamination Certificate
active
07623085
ABSTRACT:
An artificial dielectric antenna structure for reducing the mass and insertion loss of an antenna is provided. The artificial dielectric antenna structure includes a plurality of layers of dielectric material. Each layer of dielectric material has a dielectric constant. The artificial dielectric antenna structure further includes a plurality of spacing layers interposed between the plurality of layers of dielectric material. Each of the plurality of spacing layers has a dielectric constant lower than the dielectric constant of any of the plurality of layers of dielectric material. The artificial dielectric antenna structure may be disposed within a horn antenna. The artificial dielectric antenna structure may alternately be disposed upon a transmission medium to form a dielectric resonator antenna.
REFERENCES:
patent: 2650985 (1953-09-01), Noel, et al.
patent: 4246584 (1981-01-01), Noerpel
patent: 4783665 (1988-11-01), Lier et al.
patent: 5117240 (1992-05-01), Anderson et al.
patent: 5166698 (1992-11-01), Ashbaugh et al.
patent: 5642122 (1997-06-01), Lockie et al.
patent: 6020859 (2000-02-01), Kildal
patent: 6266025 (2001-07-01), Popa et al.
patent: 6323818 (2001-11-01), Koh et al.
patent: 6441795 (2002-08-01), Volman
patent: 6456254 (2002-09-01), Reineix et al.
patent: 6501433 (2002-12-01), Popa et al.
patent: 6515235 (2003-02-01), Moller
patent: 6597323 (2003-07-01), Teshirogi et al.
patent: 6831612 (2004-12-01), King et al.
patent: 6879297 (2005-04-01), Brown et al.
patent: 6879298 (2005-04-01), Zarro et al.
patent: 6985118 (2006-01-01), Zarro et al.
patent: 6992639 (2006-01-01), Lier
patent: 7379030 (2008-05-01), Lier
patent: 2005/0099352 (2005-05-01), Killen et al.
E. Lier, “A Dielectric Hybrid Mode Antenna Feed: A Simple Alternative to the Corrugated Horn”, IEEE Transactions on Antennas and Propagation, Jan. 1, 1986, pp. 21-29, vol. AP-34, No. 1.
E. Lier and Per-Simon Kildal, “Dielectrically Lined Horn Antennas”, Workshop on Primary Feeds and RF-Sensing Systems, ESTEC, The Netherlands, Jun. 10-11, 1987.
E. Lier and Per-Simon Kildal, “Soft and Hard Horns”, IEEE Transactions on Antennas and Propagation, Aug. 1988, pp. 1152-1157, vol. 36, No. 8.
“Military Space Programs: GPS Blocker II R”, FAS Space Policy Project (visited Jan. 13, 2003) <http://www.fas.org/spp/military/program
av/gps—2r.htm> (3 pages).
P.J.B. Clarricoats and A.D. Olver, “Propagation and Radiation Characteristics of Cylindrical Corrugated Waveguides”, Corrugated Horns for Microwave Antennas, Chapter 3, 1984, pp. 20-57, Peter Peregrinus Ltd., London, UK.
R. J. Dewey, “Circularly Polarized Elliptical Beamshape Horn Antennas”, Int. J. Electronics, 1982, pp. 101-103, vol. 53, No. 2.
Eric Lier, “Hybrid-Mode Horn Antenna with Design-Specific Aperture Distribution and Gain”, presented IEEE Antennas and Propagation Society International Symposium, Jun. 22-27, 2003, Columbus, Ohio (6 pages).
T. Pratt and Charles W. Bostian, “Satellite Communications: Satellite Antennas”, 1986, pp. 78-90, John Wile & Sons, New York.
Peter A. Rizzi, “Microwav Engineering: Passive Circuits,” 1988, pp. 306-311, Prentice-Hall Englewood Cliffs, New Jersey.
Lier et al., “A New Class of Dielectric-Loaded Hybrid-Mode Horn Antennas with Selective Gain: Design and Analysis by Single Mode Model and Method of Moments,” Jan. 2005, pp. 125-138, vol. 53, No. 1, IEEE Transactions on Antennas and Propagation.
Dinh Trinh V
Lockheed Martin Corporation
McDermott Will & Emery LLP
LandOfFree
Artificial dielectric antenna elements does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Artificial dielectric antenna elements, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Artificial dielectric antenna elements will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4106848