Multiple frequency projected artificial magnetic mirror and antenna application thereof
First Claim
Patent Images
1. A multiple frequency projected artificial magnetic mirror (PAMM) comprises:
- a plurality of metal traces on one or more layers of a substrate, the plurality of metal traces comprising a plurality of conductive coils;
a metal backing on another layer of the substrate; and
a dielectric material between the metal backing and the plurality of metal traces, wherein the plurality of metal traces is electrically coupled to the metal backing and at least some of the plurality of metal traces are of various sizes and of various positioning and spacing to create a distributed inductor-capacitor network having at least a first frequency band of operation and a second frequency band of operation; and
wherein, for one or more of the at least first or second frequency bands of operation, the plurality of conductive coils reflect electromagnetic energy forming a projected magnetic surface effectively forming a dish antenna above the plurality metal traces.
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Abstract
A multiple frequency projected artificial magnetic mirror (PAMM) includes a plurality of metal traces, a metal backing, and a dielectric material. The plurality of metal traces is on one or more layers of a substrate and the metal backing is on another layer of the substrate. The dielectric material is between the metal backing and the plurality of metal traces, which is electrically coupled to the metal backing. At least some of the plurality of metal traces is of various sizes and of various positioning and spacing to create a distributed inductor-capacitor network having a first frequency band of operation and a second frequency band of operation.
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Citations
18 Claims
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1. A multiple frequency projected artificial magnetic mirror (PAMM) comprises:
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a plurality of metal traces on one or more layers of a substrate, the plurality of metal traces comprising a plurality of conductive coils; a metal backing on another layer of the substrate; and a dielectric material between the metal backing and the plurality of metal traces, wherein the plurality of metal traces is electrically coupled to the metal backing and at least some of the plurality of metal traces are of various sizes and of various positioning and spacing to create a distributed inductor-capacitor network having at least a first frequency band of operation and a second frequency band of operation; and wherein, for one or more of the at least first or second frequency bands of operation, the plurality of conductive coils reflect electromagnetic energy forming a projected magnetic surface effectively forming a dish antenna above the plurality metal traces. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A multiple input multiple output (MIMO) antenna comprises:
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a first antenna in a first antenna area on one or more layers of a substrate, wherein the first antenna is operable in a first frequency band; a second antenna in a second antenna area on at least one of the one or more layers of the substrate, wherein the second antenna is operable in a second frequency band; a first set of conductive coil metal traces on another one or more layers of the substrate, wherein the first set of conductive coil metal traces is in a first metal trace area of the other one or more layers of the substrate and wherein, along an axis substantially perpendicular to the one or more layers of the substrate, the first metal trace area substantially encircles the first antenna area; a second set of conductive coil metal traces on at least one of the other one or more layers of the substrate, wherein the second set of conductive coil metal traces is in a second metal trace area of the other one or more layers of the substrate and wherein, along the axis substantially perpendicular to the one or more layers of the substrate, the second metal trace area substantially encircles the second antenna area; a metal backing on still another layer of the substrate; and a dielectric material between the metal backing and the first set of conductive coil metal traces and between the metal backing and the second set of conductive coil metal traces, wherein the first set of conductive coil metal traces are electrically coupled to the metal backing to create a first distributed inductor-capacitor network having a first frequency band of operation and wherein the second set of conductive coil metal traces are electrically coupled to the metal backing to create a second distributed inductor-capacitor network having a second frequency band of operation; and wherein, for the first and second frequency bands of operation, the first and second sets of conductive coils reflect electromagnetic energy forming a projected magnetic surface effectively forming a dish antenna above the first and second set of conductive coil metal traces respectively. - View Dependent Claims (10, 11, 12)
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13. A multiple input multiple output (MIMO) antenna comprises:
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a first antenna in a first antenna area on one or more layers of a substrate, wherein the first antenna is operable in a first frequency band; a second antenna in a second antenna area on at least one of the one or more layers of the substrate, wherein the second antenna is operable in a second frequency band; a plurality of conductive coil metal traces on another one or more layers of a substrate; a metal backing on still another layer of the substrate; and a dielectric material between the metal backing and the plurality of conductive coil metal traces, wherein the plurality of conductive coil metal traces is electrically coupled to the metal backing and are of various sizes and of various positioning and spacing to create a distributed inductor-capacitor network having the first frequency band of operation and the second frequency band of operation; and wherein, for the first and second frequency bands of operation, the plurality of conductive coil metal traces reflect electromagnetic energy forming a projected magnetic surface effectively forming a dish antenna above the plurality of conductive coil metal traces. - View Dependent Claims (14, 15, 16, 17, 18)
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Specification