Broken board antenna structure for trace-free mobile phone

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...

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 antenna, the benign use of the electromagnetic radiation of the PCB, and the selection of the antenna feed point were not optimal, resulting in unreasonable PCB breakage , which limits the performance of the mobile phone antenna

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