Communications: radio wave antennas – Antennas – With coupling network or impedance in the leadin
Reexamination Certificate
2011-03-01
2011-03-01
Nguyen, Hoang V (Department: 2821)
Communications: radio wave antennas
Antennas
With coupling network or impedance in the leadin
C343S860000
Reexamination Certificate
active
07898493
ABSTRACT:
A method to design antennas with broadband characteristics. In an exemplary embodiment, a method comprises loading an antenna structure with multiple reactive loads. The multiple loads are synthesized by applying the theory of Characteristic Modes. Another exemplary embodiment includes an antenna adapted to have broadband characteristics. One example is a wire dipole antenna. In an exemplary embodiment, a loaded antenna may be adapted to resonate an arbitrary current over a wide frequency band. The loads may require non-Foster elements when realized. Exemplary embodiments may include the broadband characteristics of the both the input impedance at the terminal of the antenna as well as the radiation pattern.
REFERENCES:
patent: 3716867 (1973-02-01), Mayes et al.
patent: 6121940 (2000-09-01), Skahill et al.
patent: 6509875 (2003-01-01), Nair et al.
patent: 7123198 (2006-10-01), Svigelj et al.
Best, S.R., The Radiation Properties of Electrically Small Folded Spherical Helix Antennas, IEEE Transactions on Antennas and Propagation, Apr. 2004, pp. 953-960, vol. 52, No. 4.
Di Nallo, C. et al., Wideband Antenna using non-Foster Loading Elements, IEEE, 2007, pp. 4501-4504.
Garbacz, R.J., Modal Expansions for Resonance Scattering Phenomena, Proceedings of the IEEE, Aug. 1965, pp. 856-864.
Hansen, R.C., Wideband Dipole Arrays Using Non-Foster Coupling, Microwave and Optical Technology Letters, Sep. 20, 2003, pp. 453-455, vol. 38, No. 6.
Harrington, R.F. et al., Theory of Characteristic Modes for Conducting Bodies, IEEE Transactions on Antennas and Propagation, Sep. 1971, pp. 622-628, vol. AP-19, No. 5.
Harrington, R.F. et al., Computation of Characteristic Modes for Conducting Bodies, IEEE Transactions on Antennas and Propagation, Sep. 1971, pp. 629-639, vol. AP-19, No. 5.
Harrington, R.F. et al., Control of Radar Scattering by Reactive Loading, IEEE Transactions on Antennas and Propagation, Jul. 1972, pp. 446-454, vol. AP-20, No. 4.
Harrington, R.F. et al., Pattern Synthesis for Loaded N-Port Scatterers, IEEE Transactions on Antennas and Propagation, Mar. 1974, pp. 184-190, vol. AP-22, No. 2.
Mautz, J.R. et al., Modal Analysis of Loaded N-Port Scatterers, IEEE Transactions on Antennas and Propagation, Mar. 1973, pp. 188-199, vol. AP-21, No. 2.
Newman, E.H., The Electromagnetic Surface Patch Code: Version 5.4, Mar. 18, 2006, 2 pages, The Ohio State University, [online] http://esl.eng.ohio-state.edu/.
Poggio, A.J. et al., Bandwidth Extension for Dipole Antennas by Conjugate Reactance Loading, IEEE Transactions on Antennas and Propagation, Jul. 1971, pp. 544-547.
Quirin, J.D., A Study of High-Frequency Solid-State Negative-Impedance Converters for Impedance Loading of Dipole Antennas, Master's Thesis, 1970, 89 pages, University of Illinois at Urbana-Champaign.
Sussman-Fort, S.E., Matching Network Design Using Non-Foster Impedances, International Journal of RF and Microwave Computer-Aided Engineering, 2006, pp. 135-142, vol. 16, No. 2.
Yaghjian, A.D. et al., Impedance, Bandwidth, and Q of Antennas, IEEE Transactions on Antennas and Propagation, Apr. 2005, pp. 1298-1324, vol. 53, No. 4.
Obeidat Khaled A.
Raines Bryan D.
Rojas Roberto G.
Nguyen Hoang V
Standley Law Group LLP
The Ohio State University
LandOfFree
Implementation of ultra wide band (UWB) electrically small... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Implementation of ultra wide band (UWB) electrically small..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Implementation of ultra wide band (UWB) electrically small... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2639568