Nanostructured tunable antennas for communication devices
원문보기
IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
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출원번호 |
US-0344638
(2006-01-31)
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등록번호 |
US-7501985
(2009-03-10)
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발명자
/ 주소 |
- Qian,Zhengfang
- Lempkowski,Robert B.
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출원인 / 주소 |
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인용정보 |
피인용 횟수 :
4 인용 특허 :
8 |
초록
▼
An apparatus (10, 30, 40, 50) is provided that relates to nanotubes as radiation elements for antennas and phased arrays, and more particularly to a macro-sized RF antenna for mobile devices. The antenna comprises a plurality of nanostructures (16), e.g., carbon nanotubes, forming an antenna structu
An apparatus (10, 30, 40, 50) is provided that relates to nanotubes as radiation elements for antennas and phased arrays, and more particularly to a macro-sized RF antenna for mobile devices. The antenna comprises a plurality of nanostructures (16), e.g., carbon nanotubes, forming an antenna structure on a substrate (12), and a radio frequency signal apparatus formed within the substrate (12) and coupled to the plurality of nanostructures (16). The radiation element length of a nested multiwall nanotube (161) of an exemplary embodiment may be tuned to a desirable frequency by an electromagnetic force (163).
대표청구항
▼
The invention claimed is: 1. An antenna comprising: a substrate comprising a material; a plurality of nanostructures forming an antenna structure on the substrate, the nanostructures selected from one of the group consisting of nanotubes, nanowires, nanorods, and nanobelts; and a radio frequency si
The invention claimed is: 1. An antenna comprising: a substrate comprising a material; a plurality of nanostructures forming an antenna structure on the substrate, the nanostructures selected from one of the group consisting of nanotubes, nanowires, nanorods, and nanobelts; and a radio frequency signal apparatus comprising a dielectric waveguide formed within the substrate, a coupling between the radio frequency signal apparatus and the plurality of nanostructures consisting of electromagnetic waves-through the material of the substrate. 2. The antenna of claim 1 wherein the nanostructures are randomly positioned on the substrate. 3. The antenna of claim 1 wherein the nanostructures are uniformly positioned on the substrate. 4. The portable communication device of claim 1 wherein the antenna structure comprises a length capable of receiving a waveform having a wavelength of between 0.5 centimeter to 2.0 centimeters. 5. The portable communication device of claim 1 wherein the antenna structure comprises a length capable of receiving a waveform having a wavelength of between 0.5 millimeter to 0.5 centimeter. 6. The portable communication device of claim 1 wherein the antenna structure comprises a length capable of receiving a waveform having a wavelength of between 1.0 nanometer to 0.5 millimeters. 7. The antenna of claim 1 wherein the plurality of nanostructures comprise a phased array. 8. A portable communication device comprising: a user interface; receiver circuitry; a controller coupled between the user interface and the receiver circuitry; and an antenna coupled to the receiver circuitry, the antenna comprising: a substrate; a plurality of nanostructures formed as an antenna structure on the substrate, the nanostructures selected from one of the group consisting of nanotubes, nanowires, nanorods, and nanobelts; and electronic apparatus comprising a dielectric waveguide formed within the substrate and coupled to the plurality of nanostructures consisting of electromagnetic waves through the material of the substrate. 9. The antenna of claim 8 wherein the nanostructures are randomly positioned on the substrate. 10. The antenna of claim 8 wherein the nanostructures are uniformly positioned on the substrate. 11. The portable communication device of claim 8 wherein the antenna structure comprises a length capable of receiving a waveform having a wavelength of between 0.5 centimeter to 2.0 centimeters. 12. The portable communication device of claim 8 wherein the antenna structure comprises a length capable of receiving a waveform having a wavelength of between 0.5 millimeter to 0.5 centimeter. 13. The portable communication device of claim 8 wherein the antenna structure comprises a length capable of receiving a waveform having a wavelength of between 1.0 nanometer to 0.5 millimeter. 14. A method of tuning an antenna having a substrate, a plurality of nested multiwall nanotubes forming an antenna structure on the substrate and having at least one inner wall, and a radio frequency signal apparatus formed within the substrate, a coupling between the radio frequency signal apparatus and the plurality of nested multiwall nanostructures consisting of electromagnetic waves through the substrate, the method comprising: applying an electromagnetic force to the nested multiwall nanostructures; and displacing the at least one inner wall. 15. The method of claim 14 wherein the radio frequency signal apparatus comprises one of a ground plane, a transmission line, one or more MEMS-tuned electromagnetic bandgap structures, a dielectric waveguide.
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