Antenna extender, and electronic device with antenna extender

Patent metadata

Field	Value
Publication number	US-11901609-B2
Application number	US-202217704117-A
Country	US
Kind code	B2
Filing date	Mar 25, 2022
Priority date	Mar 20, 2018
Publication date	Feb 13, 2024
Grant date	Feb 13, 2024

Abstract

An electronic device comprises a housing having a first side and a second side, a dielectric cover ( 602 ) on said second side, and an electrically conductive peripheral structure along edges of said first and second sides. An antenna feed ( 601 ) is coupled to a portion ( 603 ) of said peripheral structure for using said portion ( 603 ) as a radiating antenna element. A conductive member ( 604, 804 ) is located on or underneath said dielectric cover ( 602 ). The purpose of the conductive member is to enlarge the surface area where the electric field is distributed on to increase the antenna aperture for radiation.

First claim

The invention claimed is:

1. An electronic device, comprising:
a housing having a first side and a second side,
a dielectric cover on the second side,
an electrically conductive peripheral structure along edges of the first side and the second side;
an antenna feed coupled to a portion of the electrically conductive peripheral structure that is configured to use the portion of the electrically conductive peripheral structure as a radiating antenna element, wherein the portion has a first end and a second end along a longitudinal direction of the portion and the first end of the portion is an open end;
a conductive member on or underneath the dielectric cover, wherein the conductive member has a first dimension along the longitudinal direction of the portion and extends inwards from the portion, with reference to the electrically conductive peripheral structure, by a second dimension that is less than twice the first dimension, the conductive member and the antenna feed are disposed with an interval along the longitudinal direction of the portion, the antenna feed and the second end of the portion are disposed on the same side of the conductive member; and
an electric coupling between the portion of the electrically conductive peripheral structure and a part of the conductive member extends along the longitudinal direction of the portion of the electrically conductive peripheral structure.

2. The electronic device according to claim 1 , wherein said second end of said portion is a grounded end.

3. The electronic device according to claim 1 , wherein said first dimension is greater than said second dimension.

4. The electronic device according to claim 1 , wherein said conductive member is not configured to generate any extra resonances.

5. The electronic device according to claim 1 , wherein the dielectric cover is a dielectric plate, and the conductive member is mechanically supported by the dielectric plate.

6. The electronic device according to claim 5 , wherein the dielectric plate is made of plastic, glass or ceramic.

7. The electronic device according to claim 6 , wherein
the dielectric plate has an inner surface and an outer surface, and the conductive member is a piece of conductive material fixedly attached to the inner surface of the dielectric plate.

8. The electronic device according to claim 6 , wherein the dielectric plate is transparent or translucent and comprises a decorative layer on the inner surface, and the conductive member is indirectly attached to the dielectric plate by being attached to the decorative layer.

9. The electronic device according to claim 8 , wherein the electric coupling is a galvanic coupling comprising:
a direct contact between the portion and the conductive member;
a coupling through a conductive gasket between the portion of the electrically conductive peripheral structure and the conductive member;
a coupling through two or more discrete contact members between the portion is a grounded end of the electrically conductive peripheral structure and the conductive member, and
a weld joint, a solder joint, or a glue joint between the portion of the electrically conductive peripheral structure and the conductive member.

10. The electronic device according to claim 8 , wherein the electric coupling is a non-galvanic coupling comprising at least one of a capacitive coupling and an inductive coupling.

11. The electronic device according to claim 10 , wherein a crossover frequency of the non-galvanic coupling is in the order of tens to hundreds of megahertz.

12. The electronic device according to claim 11 , wherein the portion of the electrically conductive peripheral structure includes a radiating antenna element of an antenna structure that is one of the following: a monopole, a dipole antenna, a folded dipole antenna, a capacitive coupling element antenna, an inverted-F antenna, a loop antenna, and a slot antenna.

13. The electronic device according to claim 1 , wherein the electronic device comprises a dielectric support structure underneath the dielectric cover and the conductive member is mechanically supported by the dielectric support structure.

14. The electronic device according to claim 13 , wherein the electric coupling is a galvanic coupling comprising at least one of:
a direct contact between the portion of the electrically conductive peripheral structure and the conductive member;
a coupling through a conductive gasket between the portion of the electrically conductive peripheral structure and the conductive member;
a coupling through two or more discrete contact members between the portion of the electrically conductive peripheral structure and the conductive member, and
a weld joint, a solder joint, or a glue joint between the portion of the electrically conductive peripheral structure and the conductive member.

15. The electronic device according to claim 14 , wherein the portion of the electrically conductive peripheral structure includes a radiating antenna element of an antenna structure that is one of the following: a monopole, a dipole antenna, a folded dipole antenna, a capacitive coupling element antenna, an inverted-F antenna, a loop antenna, and a slot antenna.

16. The electronic device according to claim 13 , wherein the electric coupling is a non-galvanic coupling comprising at least one of a capacitive coupling and an inductive coupling.

17. The electronic device according to claim 16 , wherein the portion of the electrically conductive peripheral structure includes a radiating antenna element of an antenna structure that is one of the following: a monopole, a dipole antenna, a folded dipole antenna, a capacitive coupling element antenna, an inverted-F antenna, a loop antenna, and a slot antenna.

Assignees

• Huawei Tech Co Ltd

Inventors

• Ilvonen Janne
• Tian Ruiyuan
• Dong Li
• Xu Changnian
• Liu Dong
• Luo Hongting
• Tu Dongxing

Classifications

• H01Q1/24 Primary

  with receiving set · CPC title

• H04M1/02

  Constructional features of telephone sets · CPC title

• H04M1/0283

  for providing a decorative aspect, e.g. customization of casings, exchangeable faceplate · CPC title

• H01Q7/00

  Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop · CPC title

• H01Q9/26

  with folded element or elements, the folded parts being spaced apart a small fraction of operating wavelength (resonant loop antennas H01Q7/00) · CPC title