Low-loss dielectric resonator having a lattice structure with a resonant defect
First Claim
1. A dielectric resonator comprising:
- a first dielectric material for receiving electromagnetic energy;
a lattice structure comprised of a plurality of shaped elements comprised of a second dielectric material and disposed in a multi-dimensional periodic arrangement within the first dielectric material to provide a range of frequencies over a band gap in which the electromagnetic energy within the frequency range of the band gap is prevented from propagating through the lattice structure; and
a resonant defect structure disposed within the lattice structure for introducing a lattice imperfection in the lattice structure, the resonant defect structure providing a frequency range within the band gap in which the electromagnetic energy having frequencies in the frequency range within the band gap is allowed to propagate through the lattice structure.
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Abstract
A dielectric resonator comprising a resonant defect structure disposed in a lattice structure formed of a plurality of multi-dimensional periodically arranged dielectric elements confines electromagnetic energy within a frequency band in the photonic band gap. The frequency band of the confined electromagnetic energy is tunable. The unique structure of the dielectric resonator leads to reduced power dissipation losses when used in microwave and millimeter wave components. Accordingly, the dielectric resonator
This invention was made with government support under Contract Number N00014-86-K-0158 awarded by the Department of the Navy and Contract Number DAAL-03-86-K-0002 awarded by the Department of the Army. The government has certain rights in the invention.
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Citations
13 Claims
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1. A dielectric resonator comprising:
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a first dielectric material for receiving electromagnetic energy; a lattice structure comprised of a plurality of shaped elements comprised of a second dielectric material and disposed in a multi-dimensional periodic arrangement within the first dielectric material to provide a range of frequencies over a band gap in which the electromagnetic energy within the frequency range of the band gap is prevented from propagating through the lattice structure; and a resonant defect structure disposed within the lattice structure for introducing a lattice imperfection in the lattice structure, the resonant defect structure providing a frequency range within the band gap in which the electromagnetic energy having frequencies in the frequency range within the band gap is allowed to propagate through the lattice structure. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A dielectric resonator comprising:
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a first dielectric material for receiving electromagnetic energy; a lattice structure comprises of a plurality of shaped elements comprising of a second dielectric material and disposed in a multi-dimensional periodic arrangement within the first dielectric material to provide a predetermined frequency band gap in which the electromagnetic energy having frequencies within the band gap is prevented from propagating through the lattice structure; a resonant defect structure disposed within the lattice structure for providing a lattice imperfection in the lattice structure, the resonant defect structure providing a narrow frequency range within the band gap wherein the electromagnetic energy having frequencies within the narrow frequency range is stored within the resonant defect structure; and an output coupler linked to the resonant defect structure for coupling the electromagnetic energy having frequencies within the narrow frequency range and being stored in the resonant defect structure therefrom. - View Dependent Claims (11, 12, 13)
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Specification