Wireless terminal

Patent metadata

Field	Value
Publication number	US-9698470-B2
Application number	US-201414522109-A
Country	US
Kind code	B2
Filing date	Oct 23, 2014
Priority date	Jul 30, 2013
Publication date	Jul 4, 2017
Grant date	Jul 4, 2017

Abstract

A wireless terminal is disclosed. The wireless terminal includes a first antenna, a second antenna, a printed circuit board, a bracket, and a resonator, where the first antenna is located at one side of the printed circuit board, the second antenna is located at another side of the printed circuit board, the printed circuit board functions as a metal ground of the first antenna and the second antenna, the resonator is located on the bracket, a ground point of the resonator is located on the printed circuit board, and a clearance exists between the resonator and the printed circuit board. Not only does the wireless terminal improve isolation between multiple antennas, but also the resonator can better radiate energy of the antennas because a clearance exists between the resonator and the PCB.

First claim

What is claimed is:

1. A wireless terminal, comprising:
a first antenna and a second antenna;
a printed circuit board;
a bracket;
a resonator; and
wherein the first antenna is located at one side of the printed circuit board, the second antenna is located at another side of the printed circuit board, the printed circuit board functions as a metal ground of the first antenna and the second antenna, the resonator is located on the bracket, a ground point of the resonator is located on the printed circuit board, and a clearance exists between the resonator and the printed circuit board.

2. The wireless terminal according to claim 1 , wherein the bracket is disposed on a surface of the printed circuit board or is disposed on a side surface of the printed circuit board that is perpendicular to the surface.

3. The wireless terminal according to claim 1 , wherein the wireless terminal further comprises a housing, and the bracket is disposed on the housing of the wireless terminal.

4. The wireless terminal according to claim 1 , wherein the bracket is the housing of the wireless terminal.

5. The wireless terminal according to claim 1 , wherein a metal layer is disposed on an upper surface of the printed circuit board, or a metal layer is disposed on a lower surface of the printed circuit board, or a metal layer is disposed in the printed circuit board.

6. The wireless terminal according to claim 1 , wherein:
the first antenna and the second antenna are separately located at two opposite sides of the printed circuit board; or
the first antenna and the second antenna are separately located at two adjacent sides of the printed circuit board.

7. The wireless terminal according to claim 1 , wherein the ground point of the resonator is located on the printed circuit board and between the first antenna and the second antenna.

8. The wireless terminal according to claim 1 , wherein the resonator is one of or any combination of the following:
a high and low frequency metal open stub, a closed metal stub, a metal stub in a form of a monopole antenna, or a metal stub in a shape of an inverted-F antenna.

9. The wireless terminal according to claim 1 , wherein the resonator is electrically connected to a lump component located on the printed circuit board.

10. The wireless terminal according to claim 9 , wherein the resonator is electrically connected to the lump component through a switch assembly, wherein the lump component comprises at least two matching circuits, different matching circuits correspond to different working frequencies, and the switch assembly is configured to switch between the at least two matching circuits, so as to enable a resonance point of the resonator to switch between the working frequencies corresponding to the matching circuits.

Assignees

• Huawei Device Co Ltd

Inventors

• Zhao Liang
• Wang Hanyang
• Liu Qing
• Xu Huiliang
• Fan Yi
• Lan Yao
• Long Zhongying
• Tu Dongxing

Classifications

• H01Q21/28

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

• H01Q5/371

  Branching current paths · CPC title

• H01Q1/523

  between antennas of an array · CPC title

• H01Q5/342

  for different propagation modes (H01Q5/314 takes precedence) · CPC title

• H01Q1/38

  formed by a conductive layer on an insulating support {(patch antennas H01Q9/0407; microstrip dipole antennas H01Q9/065; microstrip slot antennas H01Q13/106; transmission line microstrip antennas H01Q13/206; manufacturing reflecting surfaces using insulating material for supporting the reflecting surface  H01Q15/142)} · CPC title