Communications: radio wave antennas – Antennas – Wave guide type
Reexamination Certificate
2006-10-17
2006-10-17
Phan, Tho (Department: 2821)
Communications: radio wave antennas
Antennas
Wave guide type
C343S775000
Reexamination Certificate
active
07123205
ABSTRACT:
Configurable antenna, adapted to transmit or to receive at least one beam of electromagnetic radiation in a direction and over an angular width that are adjustable. The antenna includes an antenna that is omnidirectional about a given axis z. The omnidirectional antenna comprises at least one biconical antenna and the configurable antenna further comprises controllable reflectivity discrete reflector elements passing through the cones of the omnidirectional antenna without electrical contact and disposed on at least one circle centered on the given axis z. The antenna is applicable to mobile telephony.
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patent: 5134420 (1992-07-01), Rosen et al.
patent: 6268834 (2001-07-01), Josypenko
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patent: 55 155/80 (1982-01-01), None
patent: 32 37 136 (1984-04-01), None
patent: 1021727 (1966-03-01), None
J.D. Kraus, “The Biconical Antenna and its Impedance” Chapter 8 of “Antennas”, McGraw-Hill, Electrical and Electronic Engineering Series, pp. 217-223, 1950.
Andre De Lustrac, et al., “Numerical and Experimental Demonstration of an Electronically Controllable PBG in the Frequency Range 0 to 20 GHz”, Proceedings of the Millennium Conference on Antennas and Propagation Apr. 9-14, 2000, Davos, Switzerland.
Brachat Patrice
Garel Pierre-Yves
Ratajczak Philippe
Cohen & Pontani, Lieberman & Pavane
France Telecom
Phan Tho
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