Mobile terminal

• US 10,693,214 B2
• Filed: 08/02/2019
• Issued: 06/23/2020
• Est. Priority Date: 04/05/2018
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Kim, Dongjin, Kang, Yunmo, Kwon, Youngbae, Youn, Yeomin, Ha, Jihun
• Primary Examiner(s): Ayotunde, Ayodeji O
• Application Number:
  US16/530,760
• Publication Number:
  US 20190356040A1
• Time in Patent Office: 326 Days
• Field of Search: 455 82, 4555501, 4555521
• CPC Class Codes: H01Q 1/242 specially adapted for hand-held use
• CPC Class Codes: H01Q 1/243 with built-in antennas
• CPC Class Codes: H01Q 13/10 Resonant slot antennas
• CPC Class Codes: H01Q 21/28 Combinations of substantially independent non-interacting antenna units or systems multiple beam H01Q25/00
• CPC Class Codes: H01Q 21/30 Combinations of separate antenna units operating in different wavebands and connected to a common feeder system
• CPC Class Codes: H01Q 9/42 with folded element, the folded parts being spaced apart a small fraction of the operating wavelength
• CPC Class Codes: H04B 1/401 for selecting or indicating operating mode
• CPC Class Codes: H04M 1/0202 Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets constructional features of telephone transmitters or receivers, e.g. of speakers or microphones H04M1/03
• CPC Class Codes: H04M 1/026 Details of the structure or mounting of specific components
• CPC Class Codes: H04M 1/0266 for a display module assembly

Abstract

A mobile terminal is provided including a display unit; a middle frame including a supporting unit that supports a rear surface of the display unit with a side portion around the supporting portion; a main board at a rear surface of the middle frame including a ground; a first wireless communication unit in the main board to transceive a first signal; a second wireless communication unit in the main board to transceive a second signal; and a rear case covering a rear surface of the main board, where the side portion includes a plurality of conductive members with ends divided into slits and the plurality of the conductive members includes a common antenna electrically connectable with the first and second wireless communication units to receive the first and second signals such that the mobile terminal receives different signals with antennas for LTE and 5G communication arranged in a limited space.

Claims

1. A mobile terminal comprising:

a display unit configured to display information;

a main board provided at a rear surface of the middle frame and comprising a ground;

a first wireless communication unit on the main board and configured to transceive a first signal;

a second wireless communication unit on the main board and configured to transceive a second signal;

a rear case covering a rear surface of the main board,

at least one first antenna electrically connected to the first wireless communication unit and the second wireless communication unit and configured to receive the first signal and the second signal; and

at least one second antenna electrically connected to the second wireless communication unit and configured to transceive the second signal.

2. The mobile terminal of claim 1, wherein:

the first signal is a NR (New Radio) signal; and

the second signal is a LTE (Long Term Evolution) signal.

3. The mobile terminal of claim 1, wherein:

the first signal has a frequency band between 2.5 GHz and 6 GH; and

the second signal has a frequency band of 2.7 GHz or less.

4. The mobile terminal of claim 1, wherein at least one end of each of the at least one first antenna comprises a slit.

5. The mobile terminal of claim 1, wherein the side portion comprises at least four slits.

6. The mobile terminal of claim 1, wherein the first antenna comprises a first resonance frequency corresponding to the first signal and a second resonance frequency corresponding to the second signal.

7. The mobile terminal of claim 1, wherein the at least one second antenna is provided in a lower area of the mobile terminal and further comprising a cap sensor electrically connected to the at least one second antenna.

8. The mobile terminal of claim 7, wherein:

the at least one second antenna comprises a connector hole; and

the connector hole comprises an interface unit having a connector inserted therein.

9. The mobile terminal of claim 7, further comprising:

a Radio Frequency (RF) block between the cap sensor and the at least one second antenna and configured to cut off an RF signal applied to the cap sensor.

10. The mobile terminal of claim 7, wherein the cap sensor is connected to the at least one second antenna via a direct connecting method to directly connect a signal line connected to the cap sensor with the at least one second antenna, a coupling connecting method to arrange the signal line near the at least one second antenna, a connecting method to connect the cap sensor with a feeding line connected with the first wireless communication unit or an indirect connecting method to connect the cap sensor to a branch pattern connected to the at least one second antenna.

11. The mobile terminal of claim 1, further comprising a branch pattern either extending from a feeding line connecting the at least one second antenna to the first wireless communication unit or connected to the at least one second antenna,

wherein the at least one second antenna comprises a plurality of resonance frequencies.

12. The mobile terminal of claim 11, wherein the feeding line is connected to the at least one second antenna via a coupling method.

13. The mobile terminal of claim 1, wherein:

the at least one second antenna forms an open slot antenna having a first end connected to the supporting portion; and

the first end has a slit such that one open end is formed with the supporting portion.

14. The mobile terminal of claim 1, wherein the first signal is received by both the at least one first antenna and the at least one second antenna and then transmitted by the at least one second antenna.

15. The mobile terminal of claim 1, wherein the at least one second antenna is:

physically connected to the supporting portion at a first point and to the supporting portion or the ground at a second point; and

electrically connected to the second wireless communication unit between the first point and the second point such that the at least one second antenna receives the first signal.

16. The mobile terminal of claim 15, wherein:

the at least one second antenna is provided at a left or right lateral area of the mobile terminal; and

a length between the first point and the second point is one half a wavelength of the first signal.

17. The mobile terminal of claim 1, further comprising an array antenna that does not overlap the at least one first antenna and the at least one second antenna.

18. The mobile terminal of claim 17, wherein the array antenna receives a mmWave signal.

19. The mobile terminal of claim 1, further comprising a middle frame comprising a supporting portion and a side portion provided around the supporting portion to define a lateral external appearance, the supporting portion supporting a rear surface of the display unit, and

wherein the side portion comprises at least one slit forming a plurality conductive members, and

wherein the plurality conductive member comprises the at least one first antenna.

20. The mobile terminal of claim 19, wherein the plurality of conductive members comprise at least two common antennas.