Enhanced nuclear quadrupole resonance and ground penetrating radar using metamaterial antenna
First Claim
1. A system comprising a plurality of metamaterial antennae to both transmit and receive a corresponding plurality of magnetic fields focused at a corresponding plurality of near-field distances separated from the plurality of antennae, at a corresponding plurality of different antenna frequencies corresponding to a plurality of nuclear quadrupole resonance frequencies of an atom in a target material, wherein at least one metamaterial antenna of the plurality of metamaterial antennae comprises a substrate with a singular first ring element connected to a first side of the substrate and a second ring element each respectively connected to an opposing second side of the substrate.
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Accused Products
Abstract
A method and system for enhanced NQR or GPR include a metamaterial antenna configured to both transmit and receive a magnetic field focused at a near-field distance separated from the antenna at a corresponding antenna frequency corresponding to a nuclear quadrupole resonance frequency of an atom in a target material.
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Citations
16 Claims
- 1. A system comprising a plurality of metamaterial antennae to both transmit and receive a corresponding plurality of magnetic fields focused at a corresponding plurality of near-field distances separated from the plurality of antennae, at a corresponding plurality of different antenna frequencies corresponding to a plurality of nuclear quadrupole resonance frequencies of an atom in a target material, wherein at least one metamaterial antenna of the plurality of metamaterial antennae comprises a substrate with a singular first ring element connected to a first side of the substrate and a second ring element each respectively connected to an opposing second side of the substrate.
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13. A method comprising:
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interrogating a region of interest (ROI) with a ground penetrating radar (GPR) antenna to detect a suspect target material in a vicinity of the GPR antenna; transmitting a plurality of nuclear quadrupole resonance (NQR) frequencies from a plurality of stacked metamaterial antennae focused at the suspect target material, at least one metamaterial antenna of the plurality of metamaterial antennae comprises a substrate with a singular first ring element connected to a first side of the substrate and a second ring element each respectively connected to an opposing second side of the substrate; receiving, by the plurality of stacked metamaterial antennas, magnetic fields of NQR frequency signals from the suspect target material to capture a NQR frequency spectrum; and identifying, by a processor, the suspect target material based on the captured NQR frequency spectrum. - View Dependent Claims (14, 15, 16)
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Specification