Metamaterial loaded antenna structures
First Claim
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1. An apparatus, comprising:
- a first substrate including a first surface;
a second substrate located substantially parallel to the first substrate and including a second surface facing the first substrate and a third surface on the opposite side of the second substrate from the second surface;
a ground electrode located on the second surface;
a feed line including a first end on the first surface and a second end on the second surface; and
a loading element coupled to the first end of the feed line located on the first surface and coupled to the ground electrode on the second surface;
wherein the feed line and the loading element are configured to provide a composite right and left handed (CRLH) metamaterial antenna structure supporting two or more specified frequency resonances.
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Abstract
Techniques and devices based on antenna structures with a MTM loading element.
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Citations
20 Claims
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1. An apparatus, comprising:
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a first substrate including a first surface; a second substrate located substantially parallel to the first substrate and including a second surface facing the first substrate and a third surface on the opposite side of the second substrate from the second surface; a ground electrode located on the second surface; a feed line including a first end on the first surface and a second end on the second surface; and a loading element coupled to the first end of the feed line located on the first surface and coupled to the ground electrode on the second surface; wherein the feed line and the loading element are configured to provide a composite right and left handed (CRLH) metamaterial antenna structure supporting two or more specified frequency resonances. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. An apparatus, comprising:
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a dielectric structure; one or more ground electrodes coupled to the dielectric structure; a metamaterial (MTM) loading element located on the dielectric structure, the MTM loading element including a via conductor located on the dielectric structure and coupled to at least one of the one or more ground electrodes; a feed line located on the dielectric structure and coupled to the MTM loading element and configured to direct an antenna signal to the MTM loading element or to receive the antenna signal from the MTM loading element; and a shorting stub coupled to the MTM loading element at a location different from a contact location between the MTM loading element and the via conductor, the shorting stub coupling the MTM element to one or more ground electrodes; wherein the dielectric structure, the one or more ground electrodes, the MTM loading element, and the feed line are configured to provide a composite right and left handed (CRLH) metamaterial antenna structure supporting two or more specified frequency resonances; and wherein the shorting stub is and sized and shaped to provide a specified input impedance for the CRLH metamaterial antenna structure. - View Dependent Claims (14, 15, 16, 17)
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18. A method, comprising:
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forming a feed line including a first end on a first surface of a first substrate and a second end on a second surface of a second substrate; forming a ground electrode located on the second surface of the second substrate; and forming a loading element coupled to the first end of the feed line located on the first surface of the first substrate and coupled to the ground electrode on the second surface of the second substrate; wherein the feed line and the loading element are configured to provide a composite right and left handed (CRLH) metamaterial antenna structure supporting two or more specified frequency resonances. - View Dependent Claims (19, 20)
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Specification