Communications: radio wave antennas – Antennas – Slot type
Reexamination Certificate
2005-03-15
2005-03-15
Phan, Tho (Department: 2821)
Communications: radio wave antennas
Antennas
Slot type
C343S770000
Reexamination Certificate
active
06867742
ABSTRACT:
An antenna apparatus (10) includes an antenna element (12, 412, 512) that has conductive material with a recess therein. The recess includes a balun hole (36, 536), and a tapered slot (37, 537) communicating at its narrow end with the balun hole. The balun hole is approximately rectangular, has a peripheral edge defined by conductive material, and contains air. The tapered slot has a shape which is optimized as a function of factors that include the balun hole design. Each slot edge follows a predetermined curve other than a first-order exponential curve.
REFERENCES:
patent: 4843403 (1989-06-01), Lalezari et al.
patent: 4853704 (1989-08-01), Diaz et al.
patent: 5036335 (1991-07-01), Jairam
patent: 5081466 (1992-01-01), Bitter, Jr.
patent: 5185611 (1993-02-01), Bitter, Jr.
patent: 5220330 (1993-06-01), Salvail et al.
patent: 5519408 (1996-05-01), Schnetzer
patent: 6008770 (1999-12-01), Sugawara
patent: 6222494 (2001-04-01), Erkocevic
patent: 6229683 (2001-05-01), Goodwin-Johansson
patent: 6317094 (2001-11-01), Wu et al.
patent: 6414645 (2002-07-01), Dahlberg
patent: 6452124 (2002-09-01), York et al.
patent: 6538614 (2003-03-01), Fleming et al.
patent: 6552691 (2003-04-01), Mohuchy et al.
patent: 0343322 (1989-11-01), None
U.S. Ser. No. 10/022,753, filed Dec. 14, 2001, entitled “Slot for Decade Band Tapered Slot Antenna, and Method of Making and Configuring Same”, inventors Nicholas A. Schuneman, et al. (Attorney Docket 004578.1193).
U.S. Ser. No. 10/023,800, filed Dec. 14, 2001, entitled “Decade Band Tapered Slot Antenna, and Method of Making Same”, inventors Nicholas A. Schuneman, et al. (Attorney Docket 004578.1194).
U.S. Ser. No. 09/946,848, filed Sep. 4, 2001, entitled “Method and Apparatus for Increasing Bandwidth of a Stripline to Slotline Transition”, inventors James M. Irion II, et al. (Attorney Docket 004578.1150).
Chio, et al., “Large Wideband Dual-Polarized Array of Vivaldi Antennas with Radome”, 1999 Asia Pacific Microwave Conference (Singapore), IEEE, Piscataway, New Jersey, Nov. 30, 1999, pp. 92-95.
Schaubert, Daniel H., “Wide-Band Phased Arrays of Vivaldi Notch Antennas”, Antenna Laboratory, University of Massachusetts, pp. 1.6 and 1.9-1.12, undated.
Pickles, W. R., et al., “Ultra-Broadband Phased-Array Antenna”, U.S. Naval Research Laboratory, pp. 1-6; undated.
Shin, Joon, et al., “A Parameter Study of Stripline-Fed Vivaldi Notch-Antenna Arrays”, IEEE Transactions on Antennas and Propagation, vol. 47, No. 5, May 1999, pp. 879-886.
Chio, Tan-Huat, et al., “Parameter Study and Design of Wide-Band Widescan Dual-Polarized Tapered Slot Antenna Arrays”, IEEE Transactions on Antennas and Propagation, vol. 48, No. 6, Jun. 2000, pp. 879-886.
Kragalott, Mark, et al., “Design of a 5 : 1 Bandwidth Stripline Notch Array from FDTD Analysis”, IEEE Transactions on Antennas and Propagation, vol, 48, No. 11, Nov. 2000, pp. 1733-1741.
Lee, Hai Fong, et al., “Advances in Microstrip and Printed Antennas”, John Wiley & Sons, Inc., New York, 1997, two title pages and pp. 447-453 and 510-514.
Simon, K., “MMIC Compensation Network for Phased Array Element Mismatch”, Raytheon Company, Research Division, Sep. 14, 1990, 68 pages.
Hodges Richard E.
Irion II James M.
Schuneman Nicholas A.
Baker & Botts L.L.P.
Phan Tho
Raytheon Company
LandOfFree
Balun and groundplanes for decade band tapered slot 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 Balun and groundplanes for decade band tapered slot antenna,..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Balun and groundplanes for decade band tapered slot antenna,... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3376827