Antenna structures
First Claim
Patent Images
1. An antenna apparatus, comprising:
- a ground electrode formed on a first layer;
a conductive patch formed on a second, outer, layer, the conductive patch configured to radiate an electromagnetic wave;
a feed structure electromagnetically coupled to the conductive patch; and
a conductive via conductively coupled to the conductive patch;
a strip line conductively coupled to the conductive via and the ground electrode, the strip line conductively coupling the conductive patch to the ground electrode using the conductive via;
wherein the ground electrode is formed entirely outside a footprint of the conductive patch projected on the first layer so as to reduce a shunt capacitance therebetween, andwherein a configuration of the conductive patch, the feed structure and the strip line forms a Composite Right and Left Handed (CRLH) structure.
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Abstract
Antenna structure having a ground electrode formed outside a footprint of a conductive patch, wherein the conductive patch is a radiating element of the antenna structure. The antenna structure in one embodiment is a composite left and right handed (CRLH) based structure. Antennas and antenna arrays based on enhanced CRLH metamaterial structures are configured to provide broadband resonances for various multi-band wireless communications.
309 Citations
20 Claims
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1. An antenna apparatus, comprising:
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a ground electrode formed on a first layer; a conductive patch formed on a second, outer, layer, the conductive patch configured to radiate an electromagnetic wave; a feed structure electromagnetically coupled to the conductive patch; and a conductive via conductively coupled to the conductive patch; a strip line conductively coupled to the conductive via and the ground electrode, the strip line conductively coupling the conductive patch to the ground electrode using the conductive via; wherein the ground electrode is formed entirely outside a footprint of the conductive patch projected on the first layer so as to reduce a shunt capacitance therebetween, and wherein a configuration of the conductive patch, the feed structure and the strip line forms a Composite Right and Left Handed (CRLH) structure. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. An antenna apparatus, comprising:
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a truncated ground electrode formed on a first layer; a conductive patch formed on a second, outer, layer, the conductive patch configured to radiate an electromagnetic wave; a feed structure capacitively coupled to the conductive patch; an inductive tuned element coupling the conductive patch to the truncated ground electrode; and at least one parasitic element configured to provide and increase in a gain of radiation from the conductive patch in one or more directions; wherein the ground electrode is formed entirely outside a footprint of the conductive patch projected on the first layer so as to reduce a shunt capacitance therebetween, and wherein a configuration of the conductive patch, the feed structure and the inductive tuned element forms a Composite Right and Left Handed (CRLH) structure. - View Dependent Claims (15, 16, 17)
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18. A device, comprising
a plurality of conductive cell patches having a cell patch area, the plurality of conductive cell patches formed on a second, outer, layer, and the plurality of conductive cell patches configured to radiate an electromagnetic wave; -
a ground electrode formed on a first layer, wherein the ground electrode is formed entirely outside a projection of a footprint of the cell patch area on the first layer; a feed structure capacitively coupled to the plurality of conductive cell patches to form a series capacitance; a plurality of conductive vias respectively conductively coupled to respective conductive Cell patches; and a plurality of ground electrode stripe lines respectively conductively coupled to Respective conductive vias and the ground electrode, the plurality of ground electrode stripe lines Respectively conductively coupling each of the conductive cell patches to the ground electrode using respective conductive vias to form shunt inductances. - View Dependent Claims (19, 20)
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Specification