Electronic device having antennas

Patent metadata

Field	Value
Publication number	US-11450960-B2
Application number	US-202016941352-A
Country	US
Kind code	B2
Filing date	Jul 28, 2020
Priority date	May 15, 2020
Publication date	Sep 20, 2022
Grant date	Sep 20, 2022

Abstract

An electronic device according to one embodiment may include a first antenna implemented as at least one of a plurality of metal rims and disposed on one side region and a lower region of the electronic device, a second antenna disposed on the lower region to be spaced apart from the first antenna, and a third antenna implemented as one of the plurality of metal rims and disposed on the one side region to be spaced apart from an end portion of the first antenna by a slit. The end portion of the first antenna and an end portion of the third antenna spaced apart from each other by the slit may be connected to each other by a delay line having a predetermined length.

First claim

What is claimed is:

1. An electronic device, comprising:
a plurality of frames including a first frame, a second frame slidable in a first direction relative to the first frame, and a third frame located on a rear surface of the second frame and moving in the first direction relative to the second frame, wherein the first frame is disposed on one side region constituting a fixed portion of the electronic device and configured as a metal frame having a plurality of metal rims and the second frame is disposed on another side region constituting a moving portion of the electronic device when the second frame slides in the first direction relative to the first frame;
a first antenna implemented as a first conductive member of the plurality of metal rims and disposed on the one side region and a lower region of the electronic device;
a second antenna implemented as a second conductive member of the plurality of metal rims and disposed on the lower region to be spaced apart from the first antenna; and
a third antenna implemented as a third conductive member of the plurality of metal rims, disposed on the one side region to be spaced apart from an end portion of the first antenna by a slit and configured to operate in the same band as the first antenna,
wherein the end portion of the first antenna and an end portion of the third antenna spaced apart from each other by the slit are selectively connected by a first switch module and a second switch module to a first ground line and a second ground line, respectively, to improve isolation between the first antenna and the third antenna operating in the same band.

2. The electronic device of claim 1 , wherein the first antenna is configured to operate in a first band and a second band higher than the first band in a Fourth-Generation (4G) communication system, and
wherein the third antenna is configured to operate in the second band of the 4G communication system.

3. The electronic device of claim 1 , further comprising:
the first switch module connected to one end portion of the first conductive member, the first conductive member connected to a first feeding unit, and the one end portion positioned adjacent to the slit;
the second switch module connected to one end portion of the third conductive member and the one end portion positioned adjacent to the slit; and
a third switch module connected to the other end of the third conductive member and configured to change an operating band of the third antenna,
wherein the third antenna comprises:
a second feeding unit connected to one point of the third conductive member to operate in a slot mode, and
a third feeding unit connected to the other end portion of the third conductive member to operate in a loop mode.

4. The electronic device of claim 3 , wherein a point where an electric field formed in the first antenna is maximized and a point where an electric field formed in the third antenna is maximized are controlled to be different from each other, and the first ground line and the second ground line have different lengths to optimize resonance characteristics of the first antenna and the third antenna.

5. The electronic device of claim 3 , wherein the first ground line and the second ground line are made to have the same length so as to improve an isolation characteristic between the first antenna and the third antenna in a specific band.

6. The electronic device of claim 3 , further comprising a switch module disposed on at least one of the first ground line and the second ground line,
wherein the switch module is configured to switch a path between at least one of the first ground line and the second ground line and a ground.

7. The electronic device of claim 6 , further comprising:
a transceiver circuit operably coupled to the first to third antennas and configured to control signals transmitted to the first to third antennas; and
a processor operably coupled to the transceiver circuit and configured to control the switch module through the transceiver circuit.

8. The electronic device of claim 7 , wherein the processor controls the transceiver circuit to perform a dual connectivity operation with the 4G communication system and a Fifth-Generation (5G) communication system through at least two of the first to third antennas.

9. The electronic device of claim 7 ,
wherein the first feeding unit is connected to the first conductive member at one point of the first conductive member forming the first antenna and configured to transmit a signal to the first antenna; and
the second feeding unit is connected to the third conductive member at one point of the third conductive member forming the third antenna and configured to transmit a signal to the third antenna,
wherein the first feeding unit and the second feeding unit are electrically connected to the transceiver circuit disposed on a circuit board provided inside the electronic device.

10. The electronic device of claim 9 , wherein the third conductive member has one end portion connected to the second ground line and another end portion connected to a switch unit configured to change an operating band of the third antenna.

11. The electronic device of claim 9 , wherein the third conductive member has one end portion connected to the second ground line and another end portion connected to the second feeding unit configured to transmit the signal to the third antenna.

12. The electronic device of claim 10 , wherein the first conductive member has one end portion connected to a first switch module disposed on the first ground line, and
wherein the transceiver circuit controls the first switch module to improve a reflection coefficient characteristic of the first antenna in a specific band and an isolation between the first antenna and the third antenna.

13. The electronic device of claim 10 , wherein the third conductive member has one end portion connected to a second switch module disposed on the second ground line, and
wherein the transceiver circuit controls the second switch module to improve a reflection coefficient characteristic of the third antenna in a specific band and an isolation between the first antenna and the third antenna.

14. The electronic device of claim 10 , wherein the third conductive member has one end portion connected to a second switch module disposed on the second ground line, and
wherein the transceiver circuit controls the switch unit to change the operating band of the third antenna, and
controls the second switch module to improve a reflection coefficient characteristic of the third antenna in a specific band and an isolation between the first antenna and the third antenna.

15. The electronic device of claim 9 , wherein the processor acquires resource information related to time and frequency resources allocated to the electronic device, and
controls a switch-on/off state of a first switch module disposed on the first ground line or a second switch module disposed on the second ground line when it is determined based on the resource information that a level of interference between the first antenna and the third antenna is to be lowered.

16. The electronic device of claim 9 , wherein the processor determines quality of a first signal received through the first antenna and quality of a third signal received through the third antenna, and
controls a matching circuit connected to a first switch module disposed on the first ground line or a second switch module disposed on the second ground line when it is determined that the quality of the first signal or the quality of the third signal has been lowe

Assignees

• Lg Electronics Inc

Inventors

• Hwang Kyoungsun
• Song Moonsoo
• Won Yoonjae
• Choi Deuksu
• You Chisang

Classifications

• H01Q21/28

  Combinations of substantially independent non-interacting antenna units or systems {(multiple beam H01Q25/00)} · CPC title

• H01Q1/44

  using equipment having another main function to serve additionally as an antenna {, e.g. means for giving an antenna an aesthetic aspect}(H01Q1/27 - H01Q1/34 take precedence) · CPC title

• H01Q1/241 Primary

  used in mobile communications, e.g. GSM (H01Q1/247, H01Q1/248 take precedence) · CPC title

• H01Q13/10

  Resonant slot antennas · CPC title

• H01Q5/357

  using a single feed point · CPC title