Mobile terminal

1. A mobile terminal comprising:

a display;

a middle frame comprising:

a supporting portion supporting a rear surface of the display; and

a side portion formed around the supporting portion, the side portion defining a lateral external appearance of the mobile terminal;

a main board located at a rear surface of the middle frame, the main board comprising:

a ground;

a first wireless communication unit configured to transceive a first signal; and

a second wireless communication unit configured to transceive a second signal, a frequency of the second signal is lower than a frequency of the first signal; and

a rear case configured to cover a rear surface of the main board,

wherein the side portion comprises a plurality of conductive members of which ends are divided into slits,

wherein the plurality of the conductive members comprise:

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

at least one second radiator electrically connected with the first wireless communication unit and the second wireless communication unit and configured to receive the first signal or the second signal,

wherein the first radiator includes a side conductive member placed at a left or right lateral surface of the mobile terminal and forming a slot antenna with the supporting portion, and

wherein the first radiator forms a closed slot antenna having two closed ends configured of one end connected with the supporting portion and the other end connected with the supporting portion or the ground of the main board.

2. The mobile terminal of claim 1 , wherein the closed slot antenna is electrically connected with the second wireless communication unit between the two closed ends and configured to receive the first signal.

3. The mobile terminal of claim 2 , wherein:

a length of the first radiator corresponds to one half of a wavelength of the first signal.

4. The mobile terminal of claim 1 , wherein the first radiator forms an open slot antenna having one end connected with the supporting portion and the other end provided in the slit, together with the supporting portion.

5. The mobile terminal of claim 4 , wherein a length of the open slot antenna corresponds to one fourth of a wavelength of the first signal.

6. The mobile terminal of claim 4 , wherein two slot antennas are arranged in a lateral direction of the mobile terminal side by side.

7. The mobile terminal of claim 1 , wherein:

the first radiator is configured to transmit and receive the first signal.

8. The mobile terminal of claim 1 , further comprising:

a non-conductive molding material disposed between the plurality of conductive members and the supporting portion;

a feeding line connected with the first wireless communication unit or the second wireless communication unit and configured to feed the conductive members; and

a connection clip inserted in the non-conductive molding material and comprising one end contacting the conductive members and the other end contacting with the feeding line.

9. The mobile terminal of claim 1 , further comprising:

a non-conductive molding material disposed between the plurality of conductive members and the supporting portion; and

a feeding line connected with the first wireless communication unit or the second wireless communication unit and comprising one end contacting the non-conductive molding material, the feeding line configured to feed the conductive members by a coupling method.

10. The mobile terminal of claim 1 , wherein the side portion comprises:

an open portion of which a predetermined area is between the conductive members, and larger than the slits;

and

an array antenna arranged adjacent to the open portion.

11. The mobile terminal of claim 1 , further comprising:

a space formed between the display and a lower end of the middle frame;

and

an array antenna arranged adjacent to the space.

12. The mobile terminal of claim 1 , wherein at least one of the slits is provided in at least one end of the second radiator.

13. The mobile terminal of claim 1 , wherein the second radiator is placed at an upper area or a lower area of the mobile terminal.

14. The mobile terminal of claim 1 , wherein the second radiator has two or more resonance frequencies.

15. The mobile terminal of claim 1 , wherein:

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

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

16. The mobile terminal of claim 1 , wherein:

the first signal has a frequency of 2.5 GHz or more and 6 GHz or less; and

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

17. The mobile terminal of claim 1 , further comprising:

a top button located in the side portion;

a button gap formed by the side portion having the top button inserted therein and the supporting portion spaced apart from the side portion;

a switch substrate provided in the button gap and configured to generate a signal when the top button is pressed; and

a pattern antenna having a predetermined area overlapped with the button gap, the pattern antenna configured to receive the first signal when electrically connected with the first wireless communication unit.

18. The mobile terminal of claim 17 , wherein the pattern antenna is connected and grounded with the middle frame.

19. The mobile terminal of claim 17 , wherein the pattern antenna is formed at an inner surface of the rear case.

20. The mobile terminal of claim 17 , wherein a length of the pattern antenna corresponds to one fourth of a wavelength of the first signal.