Radiating element and associated antenna and manufacturing method

Patent metadata

Field	Value
Publication number	US-2022407234-A1
Application number	US-202017777274-A
Country	US
Kind code	A1
Filing date	Nov 26, 2020
Priority date	Nov 29, 2019
Publication date	Dec 22, 2022
Grant date	—

Abstract

A radiating element of an antenna includes at least one wire-like nanostructure, each wire-like nanostructure extending in the same direction, called common direction, between a first end and a second end, and an inductor connected to each first end of a nanostructure, the inductor being formed from a first conductive material, the inductor extending in a plane normal to the common direction, the first conductive material having an electrical conductivity that varies under the effect of a variation of an electric field applied within the first conductive material.

First claim

1 . A radiating element for an antenna including:
an assembly of at least one wire-like nanostructure, each wire-like nanostructure extending in the same direction (D), called common direction, between a first end and a second end, and an inductor connected to each first end of a nanostructure, the inductor being formed from a first conductive material, the inductor extending in a plane normal to the common direction (D), the first conductive material having an electrical conductivity varying under the effect of a variation of an electric field applied within the first conductive material.

2 . The radiating element as claimed in claim 1 , wherein the inductor is configured so as to have an inductance value that may be matched with a capacitance of the assembly of at least one wire-like nanostructure.

3 . The radiating element as claimed in claim 1 , wherein the first conductive material includes a semi-metal.

4 . The radiating element as claimed in claim 1 , wherein the first material is graphene.

5 . The radiating element as claimed in claim 1 , wherein the first conductive material is a transition metal dichalcogenide.

6 . The radiating element as claimed in claim 1 , wherein at least one wire-like nanostructure is a carbon nanotube.

7 . The radiating element as claimed in claim 1 , wherein the inductor has a spiral shape.

8 . The radiating element as claimed in claim 1 , wherein the assembly of at least one wire-like nanostructure includes several wire-like nanostructures.

9 . The radiating element as claimed in claim 8 , wherein the inductor is configured so as to have an inductance value that may be matched with a capacitance of the assembly of wire-like nanostructures.

10 . An elementary antenna including:
a radiating element as claimed in claim 1 , and a transmission line including a region made of a second conductive material and two ground planes, the transmission line extending in the same plane as the inductor and the region being connected to the inductor being made of a third conductive material, the region being arranged between the two ground planes and, a variable DC voltage generator capable of applying the electric field within the first conductive material.

11 . The elementary antenna as claimed in claim 10 , including an electrode in physical contact with the inductance, the voltage generator applying the electric field within the first conductive material by means of the electrode.

12 . An antenna array including a plurality of elementary antennas as claimed in claim 10 .

13 . The antenna array as claimed in claim 12 , including a first elementary antenna and a second elementary antenna having radiating elements having assemblies of at least one wire-like nanostructure with different capacitances.

Assignees

• Thales Sa
• Centre Nat Rech Scient
• Ecole Superieure Physique & Chimie Ind Ville De Paris
• Univ Sorbonne

Inventors

• Chazelas Jean
• Tripon-Canseliet Charlotte
• Ziaei Afshin
• Xavier Stéphane

Classifications

• H01Q1/368 Primary

  using carbon or carbon composite · CPC title

• H01F21/005

  Inductances without magnetic core · CPC title

• H01Q9/32 Primary

  Vertical arrangement of element (H01Q9/40 takes precedence) · CPC title

• H01F21/02

  continuously variable, e.g. variometers · CPC title

• H01F5/003

  Printed circuit coils · CPC title