Communications: radio wave antennas – Antennas – Balanced doublet - centerfed
Reexamination Certificate
2005-04-05
2005-04-05
Vannucci, James (Department: 2821)
Communications: radio wave antennas
Antennas
Balanced doublet - centerfed
C343S820000, C343S822000
Reexamination Certificate
active
06876337
ABSTRACT:
The invention relates to a small (0.5 wavelength or less) adaptable antenna system. In particular it relates to the use of loaded parasitic components in the antenna aperture for the purpose of controlling the RF properties of the antenna. Such an antenna system is here referred to as a controlled parasitic antenna (CPA). Parasitic elements within the radiating aperture are terminated by active (controllable) impedance devices. A feedback and control subsystem periodically adjusts the impedance characteristics of these devices based on some observed metric of the received waveform. Such antenna systems can provide multifunctionality within a single aperture and/or mitigate problems associated with the reception of an interfering signal (or signals) or multi-path effects. Such antenna systems are particularly suitable to a situation where an aperture size is desired that is too small for the use of an adaptive phased array.
REFERENCES:
patent: 3218645 (1965-11-01), Ehrenspeck
patent: 3560978 (1971-02-01), Himmel et al.
patent: 3656167 (1972-04-01), Lea
patent: 3846799 (1974-11-01), Gueguen
patent: 3877014 (1975-04-01), Mailloux
patent: 3950753 (1976-04-01), Chisholm
patent: 3996592 (1976-12-01), Kline et al.
patent: 4260994 (1981-04-01), Parker
patent: 4387378 (1983-06-01), Henderson
patent: H26 (1986-02-01), Dinger
patent: 4631546 (1986-12-01), Dumas et al.
patent: 4700197 (1987-10-01), Milne
patent: 5235343 (1993-08-01), Audren et al.
patent: 5293172 (1994-03-01), Lamberty et al.
patent: 5294939 (1994-03-01), Sanford et al.
patent: 5767807 (1998-06-01), Pritchett
patent: 5905473 (1999-05-01), Taenzer
patent: 5923305 (1999-07-01), Sadler et al.
patent: 6034638 (2000-03-01), Thiel et al.
patent: 6040803 (2000-03-01), Spall
patent: 6122260 (2000-09-01), Liu et al.
patent: 6133882 (2000-10-01), La Fleur et al.
patent: 6137785 (2000-10-01), Bar-Ness
patent: 6177906 (2001-01-01), Petrus
patent: 6181279 (2001-01-01), Van Hoozen
patent: 6198943 (2001-03-01), Sadler et al.
patent: 6229486 (2001-05-01), Krile
patent: 6249255 (2001-06-01), Eggleston
patent: 6252548 (2001-06-01), Jeon
patent: 6285327 (2001-09-01), See
patent: 6317100 (2001-11-01), Elson et al.
patent: 6369757 (2002-04-01), Song et al.
patent: 6407719 (2002-06-01), Ohira et al.
patent: 6448937 (2002-09-01), Aiken et al.
patent: 6492942 (2002-12-01), Kezys
patent: 6515635 (2003-02-01), Chiang et al.
patent: 6677898 (2004-01-01), Cheng et al.
patent: 20030193446 (2003-10-01), Chen
patent: 20030210206 (2003-11-01), Phillips et al.
patent: 20040036651 (2004-02-01), Toda
Dinger, “A Planar Version of a 4.0 GHz Reactively Steered Adaptive Array,” IEEE Transactions on Antennas and Propagation, vol. AP-34, No. 3 (Mar. 1986), pp. 427-431.
Nakano et al., “Axial Mode Helical Antennas,” IEEE Transactions on Antennas and Propagation, vol. AP-34, No. 9 (Sep. 1986), pp. 1143-1148.
Nakano, et al., “Axial Mode Helical Antennas, ” IEEE Transactions on Antennas and Propagation, vol. AP-34, No. 9 (Sept. 1986), pp. 1143-1148.
Nakano, Hisamatsu, Ct al., “Realization of Dual-Frequency and Wide-Band VSWR Performances Using Normal-Mode Helical and Inverted-F Antennas, ” IEEE Transactions onAntennas and Propagation,vol. 46, No. 6, pp. 788-793, Jun. 1998.
Haviland, R.P., “Supergain Antennas: Possibilities and Problems, ”IEEE Antennas and Propagation Magazine,vol. 37, No. 4, pp. 13-26, Aug. 1995.
Waterhouse, R.B., “The Use of Parasitic Elements to Remove Potential E-Plane Scan Blindness in High Dielectric Substrate Microstrip Patch-Fed Phased Arrrays, ”IEEE 0-7803-2009-May 1994,pp. 456-459, 1994.
Ohira, Takashi, “Microwave Signal Processing and Devices for Adaptive Beamforming, ”IEEE 0-7803-6369-Aug. 2000,2000.
Ng, Kwong, T., et al., “Scan-Independent Slot Arrays with Parasitic Wire Arrays in a Stratified Medium, ”IEEE Transactions on Antennas and Propagation,vol. 36, No. 4, pp. 483-495, Apr. 1988.
Herscovici, Naflali, “New Considerations in the Design of Microstrip Antennas, ”IEEE Transactions on Antennas and Propagation,vol. 46, No. 6, pp. 807-8 Jun. 12, 1998.
Clavin, Alvin, et al., “An Improved Element for Use in Array Antennas, ”IEEE Transactions on Antennas and Propagation,vol. AP-22, No. 4, pp. 52 1-526, Jul. 1974.
Mori, Kouhei, et al., “Active Antenna Using Parasitic Elements, ”IEEE 0-7803-4478-Feb. 1998,pp. 1636-1639, 1998.
Dahale, J.S., et al., “Expermental Study of the Characteristics of Top-Loaded Microstrip Monopoles, ”IEEE Transactions on Antennas and Propagation,vol. AP-3 1, No. 3 pp. 527-530, May 1983.
Sengupta, Dipak L., “Theory of Double Parasitic Loop Counterpoise Antenna Radiation Patterns, ”IEEE Transactions on Antennas and Propagation,pp. 94-97, Jan. 1973.
Au, Tsien Ming, et al., “Effect of Parasitic Element on the Characteristics of Microstrip Antenna, ”IEEE Transactions on Antennas and Propagation,vol. 39, No. 8, pp. 1247-1251, Aug. 1991.
Anguera, Jaume, “Miniature WideBand Stacked Microstrip Patch Antenna Based on the Sierpinski Fractal Geometry, ”IEEE 0-7803-6369-Aug. 2000,2000.
Sanad, Mohamed, “Non-Planar Shorted Double C-Patch Antennas for Portable Communication Equipment, ”IEEE 0-7803-3216-496,pp. 738-741, 1996.
Sengupta, Dipak L., et al., “On the Radiation Patterns of Parasitic Loop Counterpoise Antennas, ”IEEE Transactions on Antennas and Propagation,vol. AP-18, No. 1, pp. 34-41, Jan. 1970.
Obmine, Hiroyuki, et al., “An Annular-Ring Microstrip Antenna Fed by a Co-Planar Feed Circuit for Mobile Satellite Communication Use, ”IEEE Transactions on Antennas and Proagation,vol. 45, No. 6 pp. 1001-1008, Jun. 1997.
Lee, R.Q., et al., “Enhancement of Array Gain with Stacked Parasitic Elements, ”IEEE 0-0 7803-2009-3/94,pp. 468-471, 1994.
Liu, W.C., et al., “Optimized Shaped Parasitic Array Using the Genetic Algorithm, ”IEE Proc.-Microw. Antennas Propag.,vol. 146, No. 5, pp. 339-341, Oct. 1999.
Ng, Kwong T., “Surface-Wave Phenomena in Phased Slot Arrays with Parasitic Wire Arrays, ”IEEE Transactions on Antennas and Propagation,vol. 37, No. 11, pp. 1398-1406, Nov. 1989.
Pozar, David M., “Scanning Characteristics of Infinite Arrays of Printed Antenna Subarrays, ”IEEE Transactions on Antennas and Propagation,vol. 40, No. 6, pp. 666-674, Jun. 1992.
Elliott, R.S., et al., “Parasitic Arrays Excited by Surface Waves, ”IEEE Transactions on Antennas and Propagation,pp. 140-142, Jul. 1955.
Staraj, Robert, et al., “Infinite Phased Arrays of Microstrip Antennas with Parasitic Elements: Application to Bandwidth Enhancement, ”IEEE Transactions on Antennas and Propagation,vol. 42, No. 5, pp. 742-746, May 1994.
Seth, Devendra P.S., et al., “On Linear Parasitic Array of Dipoles with Reactive Loading, ”IEEE Transactions on Antennas and Propagation,vol. AP-21, No. 3, pp. 286-292.
Theil, David V., et al., “Electronic Beam Steering in Wire and Patch Antenna Systems Using Switched Parasitic Elements, ”IEEE 0-7803-3216-4/96,pp. 534-53 7, 1996.
Lin, C.J., et al., “Parasitic Array of two Loaded Short Antennas, ”IEEE Transactions on Antennas and Propagation,vol. AP-21, No. 6, pp. 852-855, Nov. 1973.
Huang, John, et al., “Microstrip Yagi Array Antenna for Mobile Satellite Vehicle Application, ”IEEE Transactions on Antennas and Propagation,vol. 39, No. 7, pp. 1024-1030, Jul. 1991.
Kahn, Walter K., “Currents on Generalized Yagi Structures, ”IEEE Transactions on Antennas and Propagation,vol. AP-27, No. 6, pp. 788-797, Nov. 1979.
Zhang, Yimin, et al., “Opened Parasitic Elements Nearby a Driven Dipole, ”IEEE Transactions on Antennas and Propagation,vol. AP-34, No. 5, pp. 711-713, May 1986.
Korekado, Toshikazu, et al., “Design Method of Yagi-Uda Two-Stacked Circular Loop Array Antennas, ”IEEE Transactions on Antennas and Propagation,vol.
Nixon & Vanderhye P.C.
Toyon Research Corporation
Vannucci James
LandOfFree
Small controlled parasitic antenna system and method for... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Small controlled parasitic antenna system and method for..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Small controlled parasitic antenna system and method for... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3413622