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Double-frequency coupled antenna with metal frame

A metal frame, coupled antenna technology, applied in the direction of antenna, antenna support/mounting device, antenna equipment with additional functions, etc., can solve the problems of difficult multi-frequency implementation, difficult mobile terminal, antenna performance impact, etc., to achieve a solution The effect of greatly affecting performance, reducing the projection area, and uniform current distribution

Active Publication Date: 2014-05-21
HUIZHOU SPEED WIRELESS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The slit will definitely cause the accumulation of charge, causing the user's finger touch to have a great impact on the performance of the antenna
[0004] In addition, the slotted antenna has always been considered as an effective method to solve the problem that the metal frame must be slotted because of its antenna characteristics of low closed loop and narrow headroom. It has been difficult to be applied to mobile terminals, so the study of multi-frequency small closed-loop metal frame slotted antennas has extremely high practical value

Method used

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  • Double-frequency coupled antenna with metal frame
  • Double-frequency coupled antenna with metal frame
  • Double-frequency coupled antenna with metal frame

Examples

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Embodiment 1

[0028] Such as Figure 1~2 As shown, this embodiment provides a metal-frame dual-frequency coupling antenna, which includes a metal frame 1 , a PCB board 2 and an antenna unit 3 disposed in the metal frame 1 . The metal frame 1 includes a closed-loop metal frame composed of a first frame 102, a second frame 103, a third frame 104, and a fourth frame 105. The length and width of the metal frame 1 correspond to the length and width of the mobile phone, and the height is 3-5 mm. The frame 1 wraps around the mobile terminal. The PCB board 2 includes a circuit area 100 and a clearance area 101, the antenna unit 3 is arranged in the clearance area 101, and one end of the boundary between the circuit area 100 and the clearance area 101 on the PCB board 2 corresponds to the second frame 103 and the second frame 103. The junction of the four frames 105, the other end corresponds to the junction of the third frame 104 and the fourth frame 105, the vertical length of the headroom 101 is...

Embodiment 2

[0038] Such as Figure 4 As shown, the metal frame dual-frequency coupling antenna provided in this embodiment includes a metal frame 1, a PCB board 2 disposed in the metal frame 1, and an antenna unit 3; the metal frame 1 includes a first frame 102 and a second frame 103 1. A closed-loop metal frame formed by the third frame 104 and the fourth frame 105. The length and width of the metal frame 1 correspond to the length and width of the mobile phone, and the height is 3-5 mm. The metal frame 1 will be wrapped around the mobile terminal; the PCB board 2 Including a circuit area 100 and a clearance area 101, one end of the boundary between the circuit area 100 and the clearance area 101 on the PCB 2 corresponds to the junction of the second frame 103 and the fourth frame 105, and the other end corresponds to the third frame 104 and the fourth frame 105, the vertical length of the headroom 101 is 5~7mm; the antenna unit 3 includes a feed line 201, a coupling line 202, a firs...

Embodiment 3

[0042] Such as Figure 5As shown, this embodiment provides a metal frame dual-frequency coupling antenna, including a metal frame 1, a PCB board 2 and an antenna unit 3 arranged in the metal frame 1; the metal frame 1 includes a first frame 102, a second frame 103. A closed-loop metal frame formed by the third frame 104 and the fourth frame 105, the length and width of the metal frame 1 correspond to the length and width of the mobile phone, the height of the metal frame 1 is 3-5mm, and the metal frame 1 will be wrapped around the mobile terminal; The PCB board 2 includes a circuit area 100 and a clearance area 101, the antenna unit 3 is arranged in the clearance area 101, and one end of the boundary between the circuit area 100 and the clearance area 101 on the PCB board 2 corresponds to the second frame 103 and the second frame 103. The junction of the four frames 105, the other end corresponds to the junction of the third frame 104 and the fourth frame 105, the vertical len...

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Abstract

A double-frequency coupled antenna with a metal frame comprises the metal frame, a printed circuit board (PCB) arranged in the metal frame, and an antenna unit, wherein the metal frame comprises a closed loop metal frame formed by a first frame, a second frame, a third frame and a fourth frame, the PCB comprises a circuit area and a clearance area, the antenna unit comprises a feed line and a coupling line, the feed line is connected with a feed source, the coupling line is electrically connected with the fourth metal frame, and two ends of the fourth frame are connected with a ground of the PCB to form a closed-loop radiation loop. According to the double-frequency coupled antenna with the metal frame, the metal frame is designed as a part of an antenna irradiator, and projection areas of the PCB of the antenna are reduced; the metal frame does not need slotting, by means of a coupled feeding manner, current of the antenna in the whole radiation loop can be more evenly distributed, and the problem that finger touch affects properties of the antenna of mobile terminals is solved; by means of a slotting manner, the requirement of the antenna for PCB clearance environments is reduced, and thus, the antenna is applicable to more complicated mobile phone environments.

Description

technical field [0001] The invention belongs to the technical field of antennas, and in particular relates to a metal frame dual-frequency coupling antenna. Background technique [0002] At present, portable terminal products with metal texture are favored by consumers, but too many metal structural parts are not conducive to the design of antennas. Moreover, based on the requirements of styling, the thickness of mobile phones is getting thinner and thinner, the space for antennas is getting smaller and smaller, and the environment around the antennas is becoming more and more complex. Therefore, in a limited space and complex environment, the integration of metal structures, simultaneous consideration of user experience, and multi-frequency antennas are required, which poses challenges to antenna design. [0003] The existing metal frame designs use the metal frame as part of the antenna radiation, in order to take into account the user's pursuit of metal feeling and reduc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/44H01Q1/22H01Q5/01H01Q5/10
Inventor 罗文波吴永茂吴荻
Owner HUIZHOU SPEED WIRELESS TECH CO LTD
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