Multiple-beam antenna with photonic bandgap material

Details Multiple-beam antenna with photonic bandgap material Multiple-beam antenna with photonic bandgap material

2007-06-19

2007-06-19

Dinh, Trinh (Department: 2821)

Communications: radio wave antennas

Antennas

Antenna components

C343S840000, C343S7000MS

Reexamination Certificate

active

10532655

ABSTRACT:
A system includes a device for focusing electromagnetic waves, and a multiple-beam antenna. The antenna includes: a photonic bandgap material (20) having at least one band gap, at least one periodicity defect (36) of the photonic bandgap material so as to produce at least one narrow bandwidth within the bandgap material, and excitation elements (40to43) for transmitting and/or receiving electromagnetic waves within the at least one narrow bandwidth, the elements being arranged relative to one another so as to produce overlapping radiating spots.

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Thevenot M. et al. “Directive Photonic-Bandgap Antennas”, IEEE Transactions on Microwave Theory and Techniques, IEEE Inc. New York, US, vol. 47, No. 11, Nov. 1999, pp. 2115-2121, XP000865109 ISSN: 0018-9480, figures 10, 11.
Shi B. et al., “Defective Photonic Crystals with Greatly Enhanced Second-Harmonic Generation”, Optics Letters, Optical Society of America, Washington, US, vol. 26, No. 15, Aug. 1, 2001, pp. 1194-1196, XP001110592, ISSN: 0146-9592.

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