Antennas, devices and systems based on metamaterial structures
First Claim
Patent Images
1. A device, comprising:
- a ground electrode located on a first surface of a substrate;
a conductive patch located on a second surface of the substrate;
a feed structure electromagnetically coupled to the conductive patch;
an inductive tuned element connected to the conductive patch; and
a second inductive element located on the first surface of the substrate, the second inductive element connecting the inductive tuned element to the ground electrode;
wherein the conductive patch, the inductive tuned element, the second inductive element, and at least a portion of the ground electrode are structured to form a composite right and left handed (CRLH) structure; and
wherein the ground electrode is located entirely outside a projection of a footprint of the conductive patch projected from the second surface onto the first surface.
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Abstract
Techniques, apparatus and systems that use one or more composite left and right handed (CRLH) metamaterial structures in processing and handling electromagnetic wave signals. Antenna, antenna arrays and other RF devices can be formed based on CRLH metamaterial structures. The described CRLH metamaterial structures can be used in wireless communication RF front-end and antenna sub-systems.
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Citations
29 Claims
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1. A device, comprising:
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a ground electrode located on a first surface of a substrate; a conductive patch located on a second surface of the substrate; a feed structure electromagnetically coupled to the conductive patch; an inductive tuned element connected to the conductive patch; and a second inductive element located on the first surface of the substrate, the second inductive element connecting the inductive tuned element to the ground electrode; wherein the conductive patch, the inductive tuned element, the second inductive element, and at least a portion of the ground electrode are structured to form a composite right and left handed (CRLH) structure; and wherein the ground electrode is located entirely outside a projection of a footprint of the conductive patch projected from the second surface onto the first surface. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A wireless system, comprising:
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a radiating structure comprising; a ground electrode located on a first surface of a substrate; a conductive patch located on a second surface of the substrate; a feed structure electromagnetically coupled to the conductive patch; an inductive tuned element connected to the conductive patch; and a second inductive element located on the first surface of the substrate, the second inductive element connecting the inductive tuned element to the ground electrode; and an RF circuit element coupled to the radiating structure; wherein the conductive patch, the inductive tuned element, the second inductive element, and at least a portion of the ground electrode are structured to form a composite right and left handed (CRLH) structure; and wherein the ground electrode is located entirely outside a projection of a footprint of the conductive patch projected from the second surface onto the first surface.
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22. The wireless system as in 21, wherein:
at least part of the RF circuit element is structured to form the composite right and left handed (CRLH) structure. - View Dependent Claims (23, 24, 25, 26, 27, 28)
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29. A method for forming a device, comprising:
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forming a ground electrode located on a first surface of a substrate; forming a conductive patch located on a second surface of the substrate; forming a feed structure electromagnetically coupled to the conductive patch; forming an inductive tuned element connected to the conductive patch; and forming a second inductive element located on the first surface of the device, the second inductive element connecting the inductive tuned element to the ground electrode; wherein at least part of the device is structured to form a composite right and left handed (CRLH) structure; and wherein the ground electrode is formed entirely outside a projection of a footprint of the conductive patch projected from the second surface onto the first surface.
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Specification