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US 7,411,564 B2Granted
Frequency multiband antenna with photonic bandgap material
AssigneesCentre National de la Recherche Scientifique (CNRS), Centre National d'Etudes Spatiles
InventorsMarc Thevenot, Régis Chantalat, Bernard Jecko, Ludovic Leger, Thierry Monediere, Patrick Dumon
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Abstract
A frequency multiband antenna includes a photonic bandgap material having at least one band gap, one single periodicity defect of the bandgap material so as to produce several narrow bandwidths within the at least one band gap of the bandgap material, and an excitation device capable of transmitting and/or receiving electromagnetic waves within the narrow bandwidths.
Claims12
A frequency multiband antenna comprising:
- a Photonic Bandgap (PBG) material suitable for the spatial and frequency-wise filtering of electromagnetic waves, said PBG material exhibiting at least one stopband and forming an exterior surface radiating in emission and/or in reception,
- at least one defect of periodicity of the PBG material in such a way as to create at least one narrow passband within said at least one stopband of said PBG material, and
- an excitation device suitable for emitting and/or receiving electromagnetic waves inside said at least one narrow passband created by said at least one defect, wherein:
- the excitation device is suitable for working simultaneously at least around a first and a second distinct working frequency;
- the first and the second working frequencies are situated inside respectively a first and a second narrow passband, mutually distinct, and
- the first and the second narrow passbands are created by the same defect of periodicity of the PBG material.
3 more elements
Dependencies are inferred from the claim text.