Motorola Corporation

Islamshah S Amlani

Rudy Michael Emrick

Jeffrey H Baker

Ruth Yu-Ai Zhang

Larry A Nagahara

A one-dimensional nanostructure multi-port coupler () is provided for use in an RF device (). The coupler () includes a first plurality of one-dimensional nanostructures () aligned substantially in a first direction () and coupled between the input () and first output ('), and a second plurality of one-dimensional nanostructures () substantially aligned in a second direction (), coupled to a second output (), and disposed contiguous to the first plurality of one-dimensional nanostructures (). The first and second plurality of one-dimensional nanostructures () may comprise first and second contiguous planes. The amount of RF energy coupled may be controlled by varying the width, density, diameter, and type of one of the plurality of one-dimensional nanostructures () versus the other. The amount of RF energy coupled may also be controlled by varying the angle between the first and second plurality of one-dimensional nanostructures () and by disposing a dielectric material () therebetween.

RF system having a one-dimensional nanostructure multi-port coupler

A method provides a simple yet reliable technique to assemble one-dimensional nanostructures selectively in a desired pattern for device applications. The method comprises forming a plurality of spaced apart conductive elements () in a sequential pattern () on a substrate () and immersing the plurality of spaced apart conductive elements () in a solution () comprising a plurality of one-dimensional nanostructures (). A voltage is applied to one of the plurality of spaced apart conductive elements () formed in the sequential pattern (), thereby causing portions of the plurality of one-dimensional nanostructures () to migrate between adjacent conductive elements () in sequence beginning with the one of the plurality of spaced apart conductive elements () to which the voltage is applied.

Method of assembling one-dimensional nanostructures

A method of fabricating a nanotube structure which includes providing a substrate, depositing a supporting layer and an active catalyst film layer onto the substrate, and forming at least one nanotube on the surface of the substrate using a reaction chamber having a growth temperature of less than 850&deg; C.

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Chandler, AZ, United States of America

Islamshah S Amlani