Antenna system and electronic device

Patent metadata

Field	Value
Publication number	US-2026011908-A1
Application number	US-202318992865-A
Country	US
Kind code	A1
Filing date	Nov 27, 2023
Priority date	Feb 16, 2023
Publication date	Jan 8, 2026
Grant date	—

Abstract

Embodiments of this application disclose an antenna system and an electronic device. The antenna system includes one NFC antenna and N conventional antennas, and each of the N conventional antennas includes a feed point, a grounding point, and a radiating branch. M conventional antennas in the N conventional antennas include blocking devices. An i th antenna includes an i th radiating branch, an i th feed point, an i th blocking device, and an i th grounding point, the i th radiating branch is coupled to the i th feed point, and the i th radiating branch is coupled to the i th grounding point through the i th blocking device. The blocking device is configured to block a radio frequency signal in a frequency band of the NFC antenna in the M conventional antennas. The M conventional antennas are within a field strength range of radiation of the NFC antenna. Radiation performance of the NFC antenna is improved.

First claim

1 . An antenna system, wherein the antenna system comprises one near field communication (NFC) antenna and N conventional antennas, each of the N conventional antennas comprises a feed point, a grounding point, and a radiating branch, M conventional antennas in the N conventional antennas comprise blocking devices, an i th antenna comprises an i th radiating branch, an i th feed point, an i th blocking device, and an i th grounding point, the i th radiating branch is coupled to the i th feed point, the i th radiating branch is coupled to the i th grounding point through the i th blocking device, and the i th antenna is any one of the M conventional antennas:
the blocking device is configured to block a radio frequency signal in a frequency band of the NFC antenna in the M conventional antennas, and N is an integer greater than or equal to M, and M is a positive integer; and in an operating process of the NFC antenna, the M conventional antennas are within a field strength range of radiation of the NFC antenna.

2 . The antenna system according to claim 1 , wherein a gap distance L exists between the NFC antenna and the M conventional antennas, L is a shortest spatial distance between antenna radiators of the M conventional antennas and a radiator of the NFC antenna, and a gap distance between the i th antenna and the NFC antenna is an i th distance l i .

3 . The antenna system according to claim 2 , wherein a range of L is 0.2 mm to 10 mm.

4 . The antenna system according to claim 1 , wherein the blocking device comprises one or more of a capacitor, a band-pass circuit, a band-stop circuit, and a high-pass filter.

5 . The antenna system according to claim 4 , wherein when the blocking device is a capacitor, a capacitance range of the capacitor is 1 pF to 10 nF.

6 . The antenna system according to claim 1 , wherein when an operating frequency band of the i th antenna is above 2.4 GHz, a capacitance range of an i th capacitor is above 3 pF: when an operating frequency band of the i th antenna is 1.7 GHz to 2.4 GHz, a capacitance range of an i th capacitor is above 10 pF: or when an operating frequency band of the i th antenna is 700 MHz to 900 MHz, a capacitance range of an i th capacitor is above 33 pF: and
the i th capacitor is the i th blocking device.

7 . The antenna system according to claim 4 , wherein when the i th blocking device is a band-pass circuit, the band-pass circuit allows a signal in a frequency band above 500 MHz to pass through.

8 . The antenna system according to claim 4 , wherein when the i th blocking device is a high-pass filter, the high-pass filter allows a signal in a frequency band above 500 MHz to pass through.

9 . The antenna system according to claim 6 , wherein when M is 4, the M conventional antennas comprise a first antenna, a second antenna, a third antenna, and a sixth antenna, an operating frequency band of the first antenna is 2.4 GHz to 2.5 GHz, an operating frequency band of the second antenna is 5 GHz, an operating frequency band of the third antenna is 703 MHz to 960 MHz, and an operating frequency band of the sixth antenna is 1.7 GHz to 3.8 GHz.

10 . An electronic device, comprises an antenna system, wherein the antenna system comprises one near field communication (NFC) antenna and N conventional antennas, each of the N conventional antennas comprises a feed point, a grounding point, and a radiating branch, M conventional antennas in the N conventional antennas comprise blocking devices, an i th antenna comprises an i th radiating branch, an i th feed point, an i th blocking device, and an i th grounding point, the i th radiating branch is coupled to the i th feed point, the i th radiating branch is coupled to the i th grounding point through the i th blocking device, and the i th antenna is any one of the M conventional antennas;
the blocking device is configured to block a radio frequency signal in a frequency band of the NFC antenna in the M conventional antennas, and N is an integer greater than or equal to M, and M is a positive integer: and in an operating process of the NPC antenna, the M conventional antennas are within a field strength range of radiation of the NFC antenna.

Assignees

• Honor Device Co Ltd

Inventors

• Dong Xiaoyong
• Dong Jin
• Yu Hui
• Li Yuzhan

Classifications

• H01Q1/22

  by structural association with other equipment or articles · CPC title

• H01Q5/30

  Arrangements for providing operation on different wavebands · CPC title

• H01Q5/20

  characterised by the operating wavebands · CPC title

• H01Q1/2291 Primary

  used in Bluetooth® or Wi-Fi® devices of Wireless Local Area Networks [WLAN] (H01Q1/241 takes precedence; WLAN in general H04W) · CPC title

• H01Q1/243

  with built-in antennas · CPC title