Wireless mobile device
The present embodiments disclose a wireless mobile device, including a metal frame, a circuit board disposed in the metal frame, where there is a slot between at least one side edge of the circuit board and the metal frame, a first grounding point is connected to the circuit board and the metal frame, a second grounding point is connected to the circuit board and the metal frame, and a feeding point is located between the first grounding point and the second grounding point and is connected to the circuit board and the metal frame; and each antenna open-circuit stub suspends in space on an outer side of the circuit board, one end is connected to the metal frame by crossing the slot, and a connection point of the antenna open-circuit stub and metal frame is located between the feeding point and the second grounding point.
1. A wireless mobile device, comprising:
a metal frame;
a circuit board completely surrounded by the metal frame, including a slot between at least one side edge of the circuit board and the metal frame;
a first grounding point connected to the circuit board and the metal frame;
a second grounding point connected to the circuit board and the metal frame, wherein a spacing formed between the metal frame, the circuit board, the first grounding point and the second grounding point is a first section of the slot;
a feeding point, located within the first section of the slot between the first grounding point and the second grounding point, is connected to the circuit board and the metal frame; and
at least one antenna open-circuit stub extending from the metal frame towards the circuit board and overhanging the circuit board, wherein for each at least one antenna open-circuit stub, one end suspends in space on an outer side of the circuit board and another end connects to the metal frame by crossing the first section of the slot, and wherein a connection point of each at least one antenna open-circuit stub and the metal frame is located between the feeding point and the second grounding point.
2. The wireless mobile device according to claim 1 , wherein the at least one antenna open-circuit stub comprises:
a first antenna open-circuit stub; and
a second antenna open-circuit stub, wherein a connection point of the first antenna open-circuit stub and the metal frame is located between the feeding point and the second grounding point, and a connection point of the second antenna open-circuit stub and the metal frame is located between the second grounding point and the connection point of the first antenna open-circuit stub and the metal frame.
3. The wireless mobile device according to claim 2 , wherein an electrical length of the first antenna open-circuit stub is a half of an electrical length between the first grounding point and the connection point of the first antenna open-circuit stub and the metal frame.
4. The wireless mobile device according to claim 2 , wherein an electrical length of the second antenna open-circuit stub is a half of an electrical length between the first grounding point and the connection point of the second antenna open-circuit stub and the metal frame.
5. The wireless mobile device according to claim 2 , wherein the first antenna open circuit stub and the second antenna open circuit stub are positioned in a manner such that the wireless mobile device supports a GPS frequency band, Wi-Fi 2.4 GHz, and Wi-Fi 5 GHz.
6. The wireless mobile device according to claim 1 , wherein a width of the slot is greater than or equal to 0.5 mm.
7. The wireless mobile device according to claim 1 , wherein that the feeding point is located between the first grounding point and the second grounding point and is connected to the circuit board and the metal frame comprises:
the feeding point has a strip structure, wherein one end of the feeding point is connected to the circuit board, and the other end is connected to the metal frame.
8. The wireless mobile device according to claim 1 , wherein that the feeding point is located between the first grounding point and the second grounding point and is connected to the circuit board and the metal frame comprises:
the feeding point has a ring structure, and the feeding point is disposed on the circuit board and is coupled to the metal frame.
9. The wireless mobile device according to claim 1 , wherein the first grounding point cooperates with the second grounding point, the feeding point, and the first section of the slot to form a GPS slot antenna with a central resonance frequency of 1.575 GHz.
10. The wireless mobile device according to claim 9 , wherein an electrical length of the first section of the slot is a half wavelength of the central resonance frequency of 1.575 GHz.
11. The wireless mobile device according to claim 10 , wherein the GPS slot antenna generates three resonances in the range from 1.4 GHz to 6 GHz, where a proportion of resonance frequencies of the three resonances is 1:2:3.
12. The wireless mobile device according to claim 1 , wherein the at least one antenna open-circuit stub comprises:
a first antenna open-circuit stub configured to cooperate with the first grounding point, the feeding point, and a first subpart of the first section of the slot to form a wireless local area network antenna with a Wi-Fi resonance frequency of 5 GHz,
wherein the first subpart of the first section of the slot is a spacing formed between the first antenna open-circuit stub, the first grounding point, the metal frame, and the circuit board.
13. The wireless mobile device according to claim 12 , wherein the at least one antenna open-circuit stub further comprises:
a second antenna open-circuit stub, wherein a connection point of the first antenna open-circuit stub and the metal frame is located between the feeding point and the second grounding point, and a connection point of the second antenna open-circuit stub and the metal frame is located between the second grounding point and the connection point of the first antenna open-circuit stub and the metal frame,
wherein the second antenna open-circuit stub is configured to cooperate with the first grounding point, the feeding point, and a second subpart of the first section of the slot to form a second wireless local area network antenna with a Wi-Fi resonance frequency of 2.4 GHz,
wherein the second subpart of the first section of the slot is a spacing formed between the second antenna open-circuit stub, the first grounding point, the metal frame, and the circuit board.
14. The wireless mobile device according to claim 12 , wherein an electrical length of the first subpart of the first section of the slot is a half wavelength of the Wi-Fi resonance frequency of 5 GHz.
15. The wireless mobile device according to claim 14 , wherein the length of the first antenna open-circuit stub is one quarter wavelength of the Wi-Fi resonance frequency of 5 GHz.
16. The wireless mobile device according to claim 13 , wherein the length of the second antenna open-circuit stub is one quarter wavelength of the Wi-Fi resonance frequency of 2.4 GHz.