METHOD AND DEVICE FOR LOADING PLANAR ANTENNAS
First Claim
1. A method of increasing a bandwidth of an antenna disposed adjacent to a ground plane, the antenna comprising a radiating element, a grounding pin electrically connecting the radiating element to the ground plane and a feed spaced from the grounding pin, said method comprising:
- arranging a plurality of electrically conductive rings in one or more stacks, each ring having a gap and a ring axis, wherein in each of said one or more stacks the electrically conductive rings are aligned along the ring axes, with each ring adjacent to an adjacent ring having a space therebetween; and
disposing one or more stacks of the electrically conductive rings between the radiating element and the ground plane.
1 Assignment
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Accused Products
Abstract
In an RF antenna having a planar radiating element disposed adjacent to a ground plane, one or more metasolenoids are disposed between the radiating element and the ground plane. As such, the magnetic flux through the metasolenoids interacts with the radiating element and the ground plane, widening the bandwidth of the antenna. Each of the metasolenoid comprises a stack of split-ring resonators co-axially aligned. The gap in each split-ring resonator is oriented differently from the gap in the adjacent split-ring resonator. The use of metasolenoids disposed between the radiating element and the ground plane does not increase the volume of the radiating element.
9 Citations
20 Claims
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1. A method of increasing a bandwidth of an antenna disposed adjacent to a ground plane, the antenna comprising a radiating element, a grounding pin electrically connecting the radiating element to the ground plane and a feed spaced from the grounding pin, said method comprising:
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arranging a plurality of electrically conductive rings in one or more stacks, each ring having a gap and a ring axis, wherein in each of said one or more stacks the electrically conductive rings are aligned along the ring axes, with each ring adjacent to an adjacent ring having a space therebetween; and
disposing one or more stacks of the electrically conductive rings between the radiating element and the ground plane. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A device for use in an antenna comprising a radiating element disposed adjacent to a ground plane, a grounding pin electrically connecting the radiating element to the ground plane and a feed spaced from the grounding pin, the device disposed between the radiating element and the ground plane for loading the antenna, said device comprising:
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a plurality of electrically conductive rings, each ring having a gap and a ring axis, wherein the electrically conductive rings are arranged such that each ring is in a close proximity of an adjacent ring having a space therebetween, and that the ring axis of each ring is substantially aligned with the ring axis of another ring; and
an electrically non-conductive material disposed between the space between two adjacent rings. - View Dependent Claims (11, 12, 13)
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14. An RF antenna for use in a communications device having a ground plane, said antenna comprising:
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a radiating element disposed adjacent to the ground plane, a grounding pin electrically connecting the radiating element to the ground plane;
a feed electrically connecting the radiating element, spaced from the grounding pin, and one or more loading components disposed between the radiating element and the ground plane, wherein each of said one or more loading components comprises a plurality of electrically conductive rings, each ring having a gap and a ring axis, and wherein the electrically conductive rings are arranged such that each ring is in a close proximity of an adjacent ring having a space therebetween, and that the ring axis of each ring is substantially aligned with the ring axis of another ring. - View Dependent Claims (15, 16, 17, 18)
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19. A communications device comprising:
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a ground plane;
an antenna for conveying communications signals to and from other communications device, wherein the antenna comprises a radiating element adjacent to the ground plane, a radiating element disposed adjacent to the ground plane, a grounding pin electrically connecting the radiating element to the ground plane, and a feed electrically connecting the radiating element, spaced from the grounding pin; and
one or more loading components disposed between the radiating element and the ground plane, wherein each of said one or more loading components comprises a plurality of electrically conductive rings, each ring having a gap and a ring axis, and wherein the electrically conductive rings are arranged such that each ring is in a close proximity of an adjacent ring having a space therebetween, and that the ring axis of each ring is substantially aligned with the ring axis of another ring. - View Dependent Claims (20)
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Specification