Communications: radio wave antennas – Antennas – With radio cabinet
Reexamination Certificate
2005-11-29
2005-11-29
Ho, Tan (Department: 2821)
Communications: radio wave antennas
Antennas
With radio cabinet
C343S7000MS
Reexamination Certificate
active
06970137
ABSTRACT:
In an RF antenna having a planar radiating element disposed adjacent to a ground plane, one or more metasolenoids are disposed between the radiating element and the ground plane. As such, the magnetic flux through the metasolenoids interacts with the radiating element and the ground plane, widening the bandwidth of the antenna. Each of the metasolenoid comprises a stack of split-ring resonators co-axially aligned. The gap in each split-ring resonator is oriented differently from the gap in the adjacent split-ring resonator. The use of metasolenoids disposed between the radiating element and the ground plane does not increase the volume of the radiating element.
REFERENCES:
patent: 6437747 (2002-08-01), Stoiljkovic et al.
patent: 6448932 (2002-09-01), Stoiljkovic et al.
patent: 6650295 (2003-11-01), Ollikainen et al.
patent: 6774849 (2004-08-01), Umehara et al.
patent: 2002/0190906 (2002-12-01), Kim et al.
patent: 2003/0001794 (2003-01-01), Park et al.
Electronics Letters, vol. 31, No. 20; Hwang et al.; “Planar inverted F antenna loaded with high permittivity material”; pp. 1710-1712; Sep. 28, 1995.
IEEE 0-7803-7070-8/01; Rahman et al.; “Wide-Band Microstrip Patch Antenna with Planar PBG Structure”; pp. 486-489; 2001.
IEEE 0-7803-4178-3/97; Rauth et al.; “Broadband, Low-profile Antenna for Portable Data Terminal”, pp. 438-441; 1997.
Microwave and Optical Technology Letters, Vo. 33, No. 6; Hsiao et al.; “Compact Planar Inverted-F-Patch Antenna for Triple-Frequency Operation”; pp. 459-462; Jun. 20, 2002.
IEEE Transactions on Antennas and Propagation, vol. 48, No. 8, 0018-926X/00; Salonen et al.; “Single-Feed Dual-Band Planar Inverted-F Antenna with U-Shaped Slot”; pp. 1262-1264; Aug. 2000.
IEEE Transactions on Antennas and Propagation, vol. 45, No. 5, 0018-926x/97; Rowell et al.; “A Capacitively Loaded PIFA for Compact Mobile Telephone Handsets”; pp. 837-842; May 1997.
IEEE Transactions on Antennas and Propagation, vol. 49, No. 7, 0018-926x/01; Lui et al.; “Compact Dual-Frequency PIFA Designs Using LC Resonators”; pp. 1016-1019; Jul. 2001.
Proceedings of the IEEE, vol. 80, No. 1, 0018-9219/92; D. Pozar; “Microstrip Antennas”; pp. 79-91.
IEEE Transactions on Microwave Theory and Techniques, vol. 47, No. 11, 0018-9480/99; Pendry et al.; “Magnetism from Conductors and Enhanced Nonlinear Phenomena”; pp. 2075-2084, Nov. 1999.
The American Physical Society, Physical Review B., vol. 65; Marqués et al.; “Role of bianisotropy in negative permeability and left-handed metamaterials”; pp. 144440-1-14444-6; 2002.
Helsinki University of Technology; Ikonen et al.; “New artificial high-permeability material for microwave applications”; pp. 1-4.
Denchev Vasil
Ikonen Pekka
Kolmakov Igor
Maslovski Stanislav
Tretyakov Sergei
Ho Tan
Nokia Corporation
Ware Fressola Van Der Sluys & Adolphson LLP
LandOfFree
Method and device for loading planar antennas does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and device for loading planar antennas, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and device for loading planar antennas will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3482964