Mobile terminal

Patent metadata

Field	Value
Publication number	US-10658733-B2
Application number	US-201916383278-A
Country	US
Kind code	B2
Filing date	Apr 12, 2019
Priority date	May 2, 2017
Publication date	May 19, 2020
Grant date	May 19, 2020

Abstract

A mobile terminal can include a terminal body having a display unit disposed on one surface thereof; a frame supporting the display unit; a metal member spaced apart from the frame and exposed to an outside of the mobile terminal; a plurality of connecting members connecting the metal member to the frame and grounding the metal member; and an antenna unit disposed adjacent to the frame and including a radiator configured to radiate wireless signals in a first frequency band, in which the metal member is divided into specific areas by the plurality of connecting members, and one area located adjacent to the radiator, is configured to generate a parasitic resonance at a second frequency band different from the first frequency band, and the plurality of connecting members connected to the metal member are spaced apart from one another at different intervals.

First claim

What is claimed is:

1. A mobile terminal, comprising:
a terminal body having a display unit disposed on one surface thereof;
a frame supporting the display unit;
a metal member spaced apart from the frame and exposed to an outside of the mobile terminal;
a plurality of connecting members connecting the metal member to the frame and grounding the metal member; and
an antenna unit disposed adjacent to the frame and including a radiator configured to radiate wireless signals in a first frequency band,
wherein the metal member is divided into specific areas by the plurality of connecting members, and one area located adjacent to the radiator, is configured to generate a parasitic resonance at a second frequency band different from the first frequency band, and
wherein the plurality of connecting members connected to the metal member are spaced apart from one another at different intervals.

2. The mobile terminal of claim 1 , wherein a frequency band of the antenna unit is shifted to a third frequency band including the first frequency band by the metal member and the radiator when a dielectric is placed adjacent to the metal member.

3. The mobile terminal of claim 1 , wherein a frequency band at which the metal member resonates is changed from the second frequency band to be close to the first frequency band, when the dielectric is placed adjacent to the metal member.

4. The mobile terminal of claim 1 , further comprising:
an LC matching element electrically connected to the plurality of connecting members to change an electric length of a transmission line of the one area of the metal member adjacent to the antenna unit.

5. The mobile terminal of claim 4 , further comprising:
a main circuit board supported by one area of the frame and having the LC matching element mounted thereon;
a connecting circuit board extending from the frame and overlapping the main circuit board; and
a connection pin connecting the connecting circuit board and the main circuit board.

6. The mobile terminal of claim 4 , wherein the LC matching element is mounted on one area of a case, adjacent to the metal member, the case constituting the terminal body.

7. The mobile terminal of claim 1 , further comprising:
a flexible circuit board disposed on the frame, and extending from a corresponding connecting member to have a specific length so that the one area of the metal member is configured to generate the parasitic resonance at the second frequency band.

8. The mobile terminal of claim 1 , wherein the metal member is disposed on a side surface of the terminal body.

9. The mobile terminal of claim 7 , wherein the metal member comprises a pair of metal beams disposed on both side surfaces of the terminal body facing each other.

10. The mobile terminal of claim 1 , wherein a first area of the metal member is electrically connected to a feeder of the antenna unit so that the metal member is configured to resonate at the first frequency band by the first area and the radiator, and
wherein the plurality of connecting members are fixed to a second area spaced apart from the first area so that the parasitic resonance is generated at the second frequency band by the second area.

11. The mobile terminal of claim 1 , wherein the metal member is disposed inside the terminal body without power fed thereto, and resonates at the second frequency band.

Assignees

• Lg Electronics Inc

Inventors

• Lee Youngjoon
• Kwon Taemin
• Kim Sangmo
• Bang Sooho
• Lee Geunsu
• Choi Kyujin
• Pyo Baekbong
• Hong Changho

Classifications

• H01Q1/48

  Earthing means; Earth screens; Counterpoises · CPC title

• H01Q1/24

  with receiving set · CPC title

• H01Q1/243 Primary

  with built-in antennas · CPC title

• H04M1/0266

  for a display module assembly · CPC title

• H01Q9/42

  with folded element, the folded parts being spaced apart a small fraction of the operating wavelength · CPC title