Mobile terminal

Patent metadata

Field	Value
Publication number	US-2017201010-A1
Application number	US-201615244963-A
Country	US
Kind code	A1
Filing date	Aug 23, 2016
Priority date	Jan 11, 2016
Publication date	Jul 13, 2017
Grant date	—

Abstract

A mobile terminal includes a window including a transparent region and an opaque region surrounding the transparent region, a metal case provided below the window to accommodate the window, having a rear surface portion facing the window and a side surface portion formed to extend from the rear surface portion toward a front surface, and exposed outwardly, a non-metal member formed in a region formed by cut away a portion of the case and having a slot formation portion spaced apart from the side surface portion at a predetermined interval and a pair of sectioning portions extending from the slot formation portion and traversing the side surface portion to section the side surface portion into first to third members, and first to third antenna patterns formed in the opaque region and electrically connected to the first to third members to form first and third antennas, respectively.

First claim

What is claimed is:

1 . A mobile terminal comprising:
a window including:
a transparent region; and
an opaque region surrounding the transparent region;
a metal case provided below the window to accommodate the window, the metal case comprising:
a rear surface portion facing the window; and
a side surface portion formed to extend from the rear surface portion toward a front surface, and exposed outwardly;
a non-metal member provided in a cut away portion of the case, the non-metal member having:
a slot formation portion spaced apart from the side surface portion at a predetermined interval; and
a pair of sectioning portions extending from the slot formation portion and traversing the side surface portion to section the side surface portion into first, second and third members; and
first, second and third antenna patterns formed in the opaque region and electrically connected to the first, second and third members, respectively, to form first, second and third antennas, wherein the first, second and third antenna patterns are disposed on a lower surface of the window and have different antenna modes.

2 . The mobile terminal of claim 1 , wherein the slot formation portion is disposed to be adjacent to an upper end portion of the terminal.

3 . The mobile terminal of claim 2 , wherein a through hole is provided in an upper portion of the case,
wherein a Near Field Communication (NFC) antenna is provided within the through hole, and wherein first and second horizontal slot formation portions are formed at both end portions of the slot formation portion in a width direction of the terminal to face the through hole.

4 . The mobile terminal of claim 1 , wherein the first antenna is formed on a first side of an upper end of the case,
wherein the third antenna is formed on a second side, opposite to that of the first side, of the upper end of the case, wherein the second antenna is formed between the first antenna and the third antenna, and wherein the second antenna is a loop antenna.

5 . The mobile terminal of claim 4 , wherein the first antenna and the third antenna are either a slot antenna or a planar inverter F-type antenna (PIFA).

6 . The mobile terminal of claim 5 , wherein the first antenna is a PIFA and includes a first feeding part and a first grounding part connected to a main circuit board provided between the case and the window.

7 . The mobile terminal of claim 6 , wherein the first grounding part is located at a point where the first member and the main circuit board are connected.

8 . The mobile terminal of claim 6 , wherein the second antenna includes a second feeding part and a second grounding part connected to the main circuit board.

9 . The mobile terminal of claim 6 , wherein the third antenna is a slot antenna and includes a third feeding part connected to the main circuit board, and
wherein the third antenna is spaced apart from a ground member at a predetermined interval to form a slot.

10 . The mobile terminal of claim 5 , wherein maximum radiation points of the first, second and third antennas do not overlap each other.

11 . The mobile terminal of claim 10 , wherein current based on the first and second antennas is formed outwardly,
wherein a strength of the current based on the first antenna is gradually increased toward the second member from an end portion of the first member, wherein a strength of the current based on the second antenna is gradually decreased toward an end portion of the second member from the center of the second member, and wherein a distribution of current based on the third antenna is formed within a slot formed between the third member and a ground.

12 . The mobile terminal of claim 4 , wherein a matching module for impedance matching of the first, second and third antennas is electrically connected to the main circuit board and is provided in at least one of the first, second and third members.

13 . The mobile terminal of claim 3 , wherein the first, second and third antenna patterns are in contact with the first, second and third members by a contact in at least one point, respectively.

14 . The mobile terminal of claim 13 , wherein the contact may be configured as a C-clip.

15 . A mobile terminal comprising:
a window; a rear case; a front case supporting the window and provided between the rear case and the window; and first, second and third recess portions having first, second and third antenna patterns, respectively, the first, second and third recess portions being recessed inwardly from an outer surface of an upper portion of the front case, wherein the first, second and third antenna patterns are provided in the first, second and third recess portions, respectively.

16 . The mobile terminal of claim 15 , wherein the first, second and third antenna patterns do not to protrude past the front case.

17 . The mobile terminal of claim 16 , wherein the first, second and third antenna patterns are a flexible printed circuit board (FPCB) or a stainless steel board.

18 . The mobile terminal of claim 17 , wherein when any one of the first, second and third antenna patterns is formed of a stainless steel board, the antenna pattern formed of a stainless steel board is insert-molded together with the front case.

19 . The mobile terminal of claim 18 , wherein when any one of the first, second and third patterns is formed of an FPCB, the antenna pattern formed of an FPCB is attached to a corresponding recess portion by a bonding member.

20 . The mobile terminal of claim 19 , wherein the first recess portion is formed in a left upper portion of the front case, the third recess portion is formed in a right upper portion of the front case and the second recess portion is formed between the first recess portion and the third recess portion,
wherein first and third antenna patterns are formed of an FPCB and are provided in the first and third recess portions, respectively, and wherein a second antenna pattern is formed of a stainless steel board and is provided in the second recess portion.

Assignees

• Lg Electronics Inc

Inventors

• Kim Minseok
• Kim Hansu
• Jung Kangjae
• Kwon Youngbae
• Rho Sungjung
• Yun Changwon
• Jeon Kyoungwon
• Kim Duckyun
• Lim Hyoungwook
• Kang Yunmo
• Kim Hayong

Classifications

• H01Q1/38

  formed by a conductive layer on an insulating support {(patch antennas H01Q9/0407; microstrip dipole antennas H01Q9/065; microstrip slot antennas H01Q13/106; transmission line microstrip antennas H01Q13/206; manufacturing reflecting surfaces using insulating material for supporting the reflecting surface  H01Q15/142)} · CPC title

• H01Q13/10

  Resonant slot antennas · CPC title

• H01Q9/42

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

• H01Q1/50

  Structural association of antennas with earthing switches, lead-in devices or lightning protectors · CPC title

• H01Q1/36

  Structural form of radiating elements, e.g. cone, spiral, umbrella; {Particular materials used therewith}(H01Q1/08, H01Q1/14 take precedence) · CPC title