Communications: radio wave antennas – Antennas – Microstrip
Reexamination Certificate
2006-06-13
2008-12-30
Mancuso, Huedung (Department: 2821)
Communications: radio wave antennas
Antennas
Microstrip
C343S909000
Reexamination Certificate
active
07471247
ABSTRACT:
An antenna array includes a plurality of antenna unit cells, a ground plane, and at least one artificial magnetic layer AML unit cell. At least one AML unit cell is disposed between at least two adjacent ones of the antenna unit cells. The AML unit cells include a pair of split ring resonators through a ring dielectric layer, and the resonators are capacitively coupled to the a ground plane of the antenna array through a capacitor dielectric layer. The resonators are orthogonal to one another and to the ground plane, and more than one pair may be defined in each AML unit cell. Magnetic energy from the antenna unit cells induces an electric field in the resonators, and the resulting magnetic field is strongly coupled to the AML unit cell to inhibit mutual coupling between radiating elements by suppression of surface wave propagation.
REFERENCES:
patent: 6512494 (2003-01-01), Diaz et al.
patent: 6670932 (2003-12-01), Diaz et al.
patent: 6774867 (2004-08-01), Diaz et al.
patent: 6954177 (2005-10-01), Channabasappa et al.
patent: 7042419 (2006-05-01), Werner et al.
patent: 7071889 (2006-07-01), McKinzie et al.
patent: 7330161 (2008-02-01), Matsugatani et al.
patent: 2004/0008149 (2004-01-01), Killen et al.
patent: 2007/0285318 (2007-12-01), Sotoudeh et al.
“Antenna Theory Analysis And Design”, C.A. Balanis, John Wiley and Sons, Inc., 2d ed., 1997, pp. 432-436.
“High Performance C-Band Microstrip Patch Subarray With Dual Polarization Capabilities”, F. Rostan et al., PIERS '94 pp. 1-4.
“Design Of Dual-Polarized L-Probe Patch Antenna Arrays With High Isolation”, H. Wong, et al., IEEE Trans. Ant. Propag., vol. 52, No. 1, Jan. 2004, pp. 45-52.
“Minimising Mutual Coupling In Thick Substrate Microstrip Antenna Arrays”, L.D. Bamford, et al., Electronics Letters, vol. 33, No. 8, Apr. 10, 1997, pp. 648-650.
“Dual-Polarized Array for Signal-Processing Applications in Wireless Communications”, Bjorn Lindmark et al., IEEE, vol. 46, No. 6, Jun. 1998, pp. 758-763.
“Dual-Polarized Slot-Coupled Printed Antennas Fed by Stripline”, P. Brachat et al., IEEE, vol. 43, No. 7, Jul. 1995, pp. 738-742.
“Cavity-backed, Aperture Coupled Microstrip Patch Antenna”, B.A. Brynjarsson et al., pp. 715-718.
“Design Of A Wideband Microstrip Array Antenna For PCS And IMT-2000 Service”, Taewpp Lo, et al., Microwave And Optical Technology Letters, vol. 30, No. 4, Aug. 2001, pp. 261-265.
“Microstrip Antennas Integrated With Extromagnetic Band-Gap (EBG) Structures: A Low Mutual Coupling Design for Array Applications”, Fan Yang et al., IEEE, vol. 51, No. 10, Oct. 2003.
“Design and radiation pattern measurements of the compact base station antenna array”, Kalevi Laukkanen et al., VTT Information Technology Research Report TTE2-2003-18, Aug. 2003, 44 pages.
New compact and wide-band high-impedance surface, C.R. Simovaki et al., IEEE, 2004, pp. 297-300.
Martynyuk, Alexander E. et al., “Reflective Antenna Arrays Based on Shorted Ring Slots”, IEEE MTTS-S Digest, 2001, pp. 1379-1382.
Biffi Gentili, G. et al., “Hybrid FE approach to evaluating edge effects in cavity-backed arrays”, Electronics Letters, Apr. 10, 1997, vol. 33, No. 8, pp. 647-648, cited in the application.
Kaunisto Mikko
Säily Jussi
Simovski Constantin
Tretyakov Sergei
Harrington & Smith PC
Mancuso Huedung
Nokia Siemens Networks Oy
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