Electronic device including multiple antennas

• US 10,340,592 B2
• Filed: 07/31/2017
• Issued: 07/02/2019
• Est. Priority Date: 07/29/2016
• Status: Active Grant

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Nam, Ho Jung, Seo, Min Cheol, Kim, Hae Yeon, Park, Se Hyun
• Primary Examiner(s): Nguyen, Hoang V
• Application Number:
  US15/664,772
• Publication Number:
  US 20180034148A1
• Time in Patent Office: 701 Days
• CPC Class Codes: H01Q 1/243 with built-in antennas
• CPC Class Codes: H01Q 1/50 Structural association of antennas with earthing switches, lead-in devices or lightning protectors
• CPC Class Codes: H01Q 1/523 between antennas of an array
• CPC Class Codes: H01Q 21/28 Combinations of substantially independent non-interacting antenna units or systems multiple beam H01Q25/00
• CPC Class Codes: H01Q 5/328 between a radiating element and ground
• CPC Class Codes: H01Q 5/35 using two or more simultaneously fed points
• CPC Class Codes: H01Q 9/42 with folded element, the folded parts being spaced apart a small fraction of the operating wavelength

Abstract

An electronic device is provided. The electronic device includes a first antenna configured to transmit and receive signals of a plurality of frequency bands, and a second antenna disposed at an area adjacent to the first antenna. The first antenna includes a first wireless communication circuit, a first radiator, a first feeding part configured to connect the first wireless communication circuit to the first radiator, a first ground part configured to be connected to one end of the first radiator, a switching circuit configured to be connected to the first radiator in an area adjacent to the second antenna, at least one frequency band element in which a first end is connected to the switching circuit and a second end is connected to the first ground part, and at least one isolation element configured to connect the first radiator to the ground part in the area adjacent to the second antenna.

Claims

1. An electronic device including a plurality of antennas, the electronic device comprising:

a first antenna configured to transmit and receive signals of a plurality of frequency bands; and

a second antenna disposed at an area adjacent to the first antenna,

wherein the first antenna comprises;

a first wireless communication circuit;

a first radiator;

a first feeding part configured to connect the first wireless communication circuit to the first radiator;

a first ground part configured to be connected to one end of the first radiator;

a switching circuit configured to be connected to the first radiator in an area adjacent to the second antenna;

at least one frequency band element in which a first end is connected to the switching circuit and a second end is connected to the first ground part; and

at least one isolation element configured to connect the first radiator to the ground part in the area adjacent to the second antenna,

wherein the at least one isolation element comprises at least one capacitance element or at least one inductance element,

wherein the first antenna is not affected by the isolation element,

wherein the second antenna is isolated by the isolation element, and

wherein the at least one isolation element is connected to a ground area.

2. The electronic device of claim 1, wherein the at least one frequency band element comprises at least one capacitance element or at least one inductance element.

3. The electronic device of claim 2, wherein the first radiator is configured to be selectively connected to the at least one frequency band element according to a switching operation of the switching circuit and configured to transmit and receive a signal of a frequency band having a frequency range from 600 MHz to 990 MHz.

4. The electronic device of claim 1, wherein the first radiator is configured to be connected to at least one of the switching circuit and the at least one isolation element, through a connection part.

5. The electronic device of claim 4, wherein the connection part comprises a C-clip.

6. The electronic device of claim 1, further comprising a matching circuit having a predetermined impedance, wherein the matching circuit is configured to be connected to one end of the first feeding part.

7. The electronic device of claim 6, wherein the matching circuit comprises at least one capacitance element or at least one inductance element.

8. The electronic device of claim 1, further comprising a duplexer configured to separate a signal transmitted and a signal received through the first radiator, wherein the duplexer is configured to be connected to one end of the first feeding part.

9. The electronic device of claim 1, wherein the second antenna comprises:

a second wireless communication circuit;

a second radiator;

a second feeding part configured to connect the second wireless communication circuit to the second radiator;

a second ground part connected to one end of the second radiator; and

a plurality of matching circuits, wherein a first end of each is connected to the second feeding part and a second end thereof is connected to the second radiator.

10. The electronic device of claim 9, wherein each of the plurality of matching circuits comprises at least one capacitance element or at least one inductance element.

11. The electronic device of claim 9, wherein the plurality of matching circuits comprise conductive lines to connect the second feeding part and the second radiator, and the conductive lines are configured to have different lengths.

12. An electronic device comprising:

a housing comprising a first surface facing a first direction, a second surface facing a second direction opposite to the first direction, and a side surface surrounding at least a portion of a space between the first surface and the second surface;

a first conductive member configured to be included in the housing or to form a portion of the housing;

a ground member configured to be included in the housing;

a switching circuit comprising a first terminal, a second terminal, and a third terminal, the first terminal configured to be electrically connected to a first point of the first conductive member;

a first circuit configured to be electrically connected between the second terminal of the switching circuit and the ground member, wherein the first circuit comprises at least one of a capacitance element and an inductance element;

a second circuit configured to be electrically connected between the third terminal of the switching circuit and the ground member, wherein the second circuit comprises at least one of a capacitance element and an inductance element;

a third circuit comprising at least one of a capacitance element and an inductance element, which is electrically connected to the first point of the first conductive member, the first terminal of the switching circuit, and the ground member;

a first wireless communication circuit configured to be electrically connected to a second point spaced apart from the first point of the first conductive member; and

a conductive connection part configured to electrically connect a third point spaced apart from the first point of the first conductive member and the ground member.

13. The electronic device of claim 12, wherein the first wireless communication circuit is configured to transmit and receive a signal of a first frequency band having a frequency range from 600 MHz to 990 MHz.

14. The electronic device of claim 12, further comprising a second conductive member disposed in the vicinity of one end of the first conductive member and spaced apart from the first conductive member, wherein the first point of the first conductive member is closer to the second conductive member than the second point.

15. The electronic device of claim 14, further comprising a second wireless communication circuit electrically connected to the second conductive member, wherein the second wireless communication circuit is configured to transmit and receive a signal of a second frequency band that is at least partly different from the first frequency band.

16. The electronic device of claim 14, further comprising a non-conductive member, wherein the first conductive member and the second conductive member are configured to form at least a portion of the side surface of the housing, and the non-conductive member is disposed between the first conductive member and the second conductive member.

17. The electronic device of claim 16, further comprising a third conductive member disposed at an opposite position to the second conductive member with respect to the first conductive member, wherein the third point of the first conductive member is closer to the third conductive member than the second point.

18. The electronic device of claim 17, further comprising a non-conductive member, wherein the third conductive member is configured to form at least one other portion of the side surface of the housing, and the non-conductive member is disposed between the first conductive member and the third conductive member.

19. The electronic device of claim 18, wherein the second point of the first conductive member is disposed between the third point and the first point.

20. An electronic device comprising:

a wireless communication circuit;

a first antenna comprising a ground, a radiator, a feeding part, at least one frequency band element, and at least one isolation circuit; and

a second antenna,

wherein the ground is positioned on one end of the radiator, the at least one isolation circuit is positioned on an opposite end of the radiator, and the feeding part is positioned between the ground and the at least one isolation circuit, and

wherein the at least one frequency band element is adjacent to the second antenna.

21. The electronic device of claim 20, wherein the first antenna further comprises a switching circuit configured to perform a switching operation connecting the radiator with the at least one isolation circuit, in an area adjacent to the second antenna.

22. The electronic device of claim 20, wherein the feeding part is configured to connect the wireless communication circuit to the radiator.