Broken board antenna structure for trace-free mobile phone

An antenna structure, mobile phone technology, applied in the direction of the antenna grounding switch structure connection, antenna, antenna components, etc., can solve the problems of unreasonable PCB breakage, insufficient early evaluation of communication antennas, and limited mobile phone antenna performance, etc., to reduce the research and development cycle. and cost, height requirements are low, the effect of improving efficiency

Inactive Publication Date: 2016-05-11
HUIZHOU SPEED WIRELESS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the process of mobile phone research and development, the early evaluation of the communication antenna was insufficient, and the simulation and actual simulation were not sufficient, including the composition of the ante

Method used

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  • Broken board antenna structure for trace-free mobile phone
  • Broken board antenna structure for trace-free mobile phone
  • Broken board antenna structure for trace-free mobile phone

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Such as figure 1 As shown in Fig. 1, a broken-board antenna structure for a mobile phone without wiring, a new implementation form of mobile phone antenna is proposed, without additional use of FPC, metal shrapnel, etc. as the main part of the antenna wiring. Pay attention to the early evaluation of communication antennas, especially the distribution of USB position, SPEAKER, and rigid volume. Full emulation and actual evaluation board simulation. No need to use mobile phone wiring. Instead, the two PCBA broken boards can be equivalent to the two-arm radiators of the dipole (dipole) antenna.

[0031] This embodiment discloses another embodiment of the antenna structure of a mobile phone without wires. The antenna is basically composed of two PCB boards, that is, the first PCB board 1 and the second PCB board 2, and the first PCB board and the second PCB board. The PCB boards are connected through a coaxial cable 4, wherein the core part of the coaxial cable connects ...

Embodiment 2

[0037] This embodiment is another embodiment of the wire-free mobile phone broken board antenna structure described in the present invention, the basic structure is consistent with the structure described in Embodiment 1, the difference is that the first PCB board and the second PCB board A ground feed metal structure is added between them as a metal sheet or a metal connector 8 for ground feed. A current path is added between the first PCB board and the second PCB board, so that the performance of the antenna is more optimized.

[0038] Figure 5 For the return loss of the mobile phone antenna in this embodiment, the antenna in the LTE frequency band achieves good matching. It can be seen that the overall bandwidth of the antenna is relatively wide and the performance is good.

[0039] Image 6 The passive efficiency test chart of the mobile phone antenna in this embodiment shows that in the LTE frequency band, the efficiency of the antenna basically reaches 50%, which show...

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PUM

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Abstract

The invention provides a broken board antenna structure for a trace-free mobile phone. The broken board antenna structure comprises a first PCB and a second PCB, wherein the first PCB and the second PCB are associated with each other through line arrangement, slot coupling or coaxial line feeding connection and the like; the first PCB is grounded; and a metal part on the second PCB is taken as an antenna radiation body and is connected with a signal transceiver. By a broken board structure for the PCBs of the mobile phone, coated copper on the PCBs of the mobile phone and metal regions on components are taken as the antenna radiation bodies; an antenna trace does not need to arrange; and the antenna with the form is low in height demand, and has the advantages of high low-frequency bandwidth and high efficiency. Aiming at a light and thin mobile phone, the antenna form of the broken board mobile phone free of the trace can greatly reduce the development period and cost. The antenna structure is easy to achieve in technology; a printed antenna or a spring plate is not needed; the efficiency is improved; the cost is reduced; meanwhile, the adjustment flexibility is high; and debugging of the mobile phone form can be achieved through reasonably adjusting the component positions, the battery position and the matching position.

Description

technical field [0001] The present invention relates to the field of antennas, and more specifically, to a broken-plate antenna structure for a wire-free mobile phone. Background technique [0002] With the development of wireless communication, higher requirements are placed on the bandwidth and efficiency of mobile phone antennas. Traditional mobile phone wiring PIFA, built-in Monopole, etc., need to rely on the mobile phone to provide a larger clearance or higher height to achieve higher efficiency and bandwidth for antenna wiring. At the same time, in order to meet people's requirements for thinner and lighter mobile phones, large screens, and multiple standards, the headroom of mobile phones is small, the height of mobile phones is insufficient, and the motherboard environment is poor; The wiring is becoming more and more difficult to debug, and the development cycle of mobile phone antennas is getting longer and longer. [0003] The internal PCB board of the mobile p...

Claims

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Application Information

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IPC IPC(8): H01Q1/24H01Q1/38H01Q1/50
CPCH01Q1/38H01Q1/243H01Q1/50
Inventor 周世杨
Owner HUIZHOU SPEED WIRELESS TECH CO LTD
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