Multi-functional CRLH antenna device
First Claim
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1. A metamaterial antenna device comprising:
- a substrate structure;
one or more metallization layers supported by the substrate structure and structured to include;
a cell patch comprising a first switch contact;
a second switch contact configured to be bridged to the first switch contact when a switch is actuated;
a first ground electrode formed in one of the one or more metallization layers and conductively coupled to the cell patch through a conductive path; and
a feed structure coupled to the cell patch;
wherein the cell patch, the feed structure, and at least part of the substrate structure are configured to form a Composite Right/Left Handed (CRLH) antenna device structured to provide multiple resonant operating frequencies; and
wherein one or more of the first switch contact or the second switch contact is coupled to the first ground electrode using a frequency-selective coupling configured to suppress a shift in the multiple resonant operating frequencies between a state when the first and second switch contacts are isolated from each other as compared to a state where the first and second switch contacts are bridged.
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Abstract
This application relates to a multi-functional Composite Right and Left Handed CRLH antenna device. A conductive element of a wireless device is incorporated into the antenna structure for reuse. In one embodiment a peripheral feature, such as a key dome, is incorporated into the antenna device. In this way, the antenna structure includes portions which are multi-functional.
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Citations
21 Claims
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1. A metamaterial antenna device comprising:
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a substrate structure; one or more metallization layers supported by the substrate structure and structured to include; a cell patch comprising a first switch contact; a second switch contact configured to be bridged to the first switch contact when a switch is actuated; a first ground electrode formed in one of the one or more metallization layers and conductively coupled to the cell patch through a conductive path; and a feed structure coupled to the cell patch; wherein the cell patch, the feed structure, and at least part of the substrate structure are configured to form a Composite Right/Left Handed (CRLH) antenna device structured to provide multiple resonant operating frequencies; and wherein one or more of the first switch contact or the second switch contact is coupled to the first ground electrode using a frequency-selective coupling configured to suppress a shift in the multiple resonant operating frequencies between a state when the first and second switch contacts are isolated from each other as compared to a state where the first and second switch contacts are bridged. - View Dependent Claims (2, 3, 4, 5, 6, 9, 10, 11, 12, 13, 14, 16, 17, 18, 19)
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7. A method, comprising:
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providing a substrate structure including one or more metallization layers; forming a cell patch comprising a first switch contact on one of the one or more metallization layers; forming a second switch contact on one of the one or more metallization layers, the second switch contact configured to be bridged to the first switch contact when a switch is actuated; forming a first ground electrode on one of the one or more metallization layers, the first ground electrode conductively coupled to the cell patch through a conductive path; and forming a feed structure on one of the one or more metallization layers, the feed structure coupled to the cell patch; wherein the cell patch, the feed structure, and at least part of the substrate structure form a Composite Right/Left Handed (CRLH) antenna device structured to provide multiple resonant operating frequencies; and wherein one or more of the first switch contact or the second switch contact is coupled to the first ground electrode using a frequency-selective coupling configured to suppress a shift in the multiple resonant operating frequencies between a state when the first and second switch contacts are isolated from each other as compared to a state where the first and second switch contacts are bridged. - View Dependent Claims (8, 15, 20, 21)
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Specification