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US 8,803,739 B2Granted
Multi-functional CRLH antenna device
AssigneeTyco Electronics Services GmbH
InventorsSunil Kumar Rajgopal, Ajay Gummalla, Cheng Jung Lee, Vaneet Pathak
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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.
Claims21
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.
7 more elements
A method, comprising:
- 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.
6 more elements
Dependencies are inferred from the claim text.