Antenna device having rotatable structure

Patent metadata

Field	Value
Publication number	US-9825359-B2
Application number	US-201615060441-A
Country	US
Kind code	B2
Filing date	Mar 3, 2016
Priority date	Mar 3, 2015
Publication date	Nov 21, 2017
Grant date	Nov 21, 2017

Abstract

An architecture for providing a low cost, high performance antenna for small devices In particular, a rotatable antenna that having three antenna elements; a primary element consisting of a radiating element and swiveling cylindrical head, a secondary element that consists of a feeding cylindrical pin attached vertically to an electronic device main board, and a third element that consists of a plastic part over-molding the secondary element to permit electromagnetic coupling accuracy between the primary and secondary elements.

First claim

The invention claimed is:

1. An rotatable antenna, comprising:
a first element electrically coupled to a printed circuit board, where the first element comprises a first cylindrical portion;
a second element having a second cylindrical portion, said second cylindrical portion having a cavity for receiving said first cylindrical portion such that said second element rotates around an axis of said first element; and
a third element immovably fixed to a portion of said first element and movably fixed to a portion of said second cylindrical portion such that said second cylindrical portion is prevented from touching said first cylindrical portion.

2. The rotatable antenna of claim 1 , wherein a space is maintained between said first cylindrical portion of said first element and said second cylindrical portion of said second element.

3. The rotatable antenna of claim 2 , wherein said space is an air gap.

4. The rotatable antenna of claim 1 , wherein a signal is electromagnetically coupled between said first cylindrical portion of said first element and said second cylindrical portion of said second element.

5. The rotatable antenna of claim 1 , wherein said third element is fabricated from a dielectric material.

6. The rotatable antenna of claim 1 , wherein said first element comprises a third cylindrical portion which is coupled to the printed circuit board.

7. An apparatus comprising:
a printed circuit board;
an enclosure for enclosing at least a portion of said printed circuit board, said enclosure having a circular aperture over a portion of said printed circuit board;
a cylindrical antenna element affixed to the printed circuit board such that an axis of said cylindrical antenna element is orthogonal to a plane of said printed circuit board, said axis also being in alignment with said aperture; and
a radiating antenna element having a cylindrical portion, wherein said cylindrical portion is positioned over a portion of said cylindrical antenna element, and wherein said cylindrical portion is positioned within said aperture of said enclosure such that cylindrical portion is movably retained by said enclosure such that a gap is maintained between said cylindrical antenna element and said cylindrical portion.

8. The apparatus of claim 7 wherein the gap is an air gap.

9. The apparatus of claim 7 wherein a signal is electromagnetically coupled between said cylindrical antenna element and said cylindrical portion.

10. The apparatus of claim 7 wherein said radiating antenna element can be rotated around an axis of said cylindrical antenna element.

Assignees

• Thomson Licensing

Inventors

• Lo Hine Tong Dominique
• Minard Philippe
• Aubin Anthony

Classifications

• H01Q1/2258

  used with computer equipment · CPC title

• H01Q3/08 Primary

  for varying two co-ordinates of the orientation · CPC title

• H01Q1/2275

  associated to expansion card or bus, e.g. in PCMCIA, PC cards, Wireless USB · CPC title

• H01Q1/24

  with receiving set · CPC title

• H01Q3/04

  for varying one co-ordinate of the orientation · CPC title