An anti-jamming circuit board and terminal

Abstract

The present application provides an anti-interference circuit board and a terminal. The circuit board specifically includes a substrate, the substrate has a first surface, and a first area for placing a magnetometer is provided on the first surface; A plurality of circuit layers, and a plurality of circuit layers are stacked, such as at least a stacked first functional circuit for generating a magnetic field generated in the first direction and a circuit for generating a magnetic field generated in the second direction are provided in the substrate The second functional circuit; when specifically setting the positions of the first functional circuit and the second functional circuit, it is satisfied that: the first area is located in the vertical projection of the first functional circuit and the second functional circuit on the first surface . It can be seen from the above description that the interference received by the magnetometer in the first area is compensated by setting the first functional circuit and the second functional circuit, and the first functional circuit and the second functional circuit are located below the magnetometer during setting, The surface area occupied by the anti-jamming circuit board is reduced.

Description

technical field [0001] The present application relates to the technical field of terminals, in particular to an anti-jamming circuit board and a terminal. Background technique [0002] The magnetic environment in the current mobile phone architecture scheme is relatively complicated. The layout of the magnetometer as a geomagnetic field detection device is limited in the whole machine environment. It is difficult to find a position with little magnetic interference on the PCB. It is necessary to use a PCB design hardware compensation solution to offset part of the magnetic field. interference. In the prior art, when compensating the magnetometer, such as figure 1 As shown in , the anti-jamming circuit board 1 is respectively provided with a coil 3 on both sides of the magnetometer 2 , and the magnetometer 2 is compensated by the coil 3 . However, when this method is adopted, a large area on the anti-jamming circuit board 1 is occupied, which reduces the places where other ...

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Problems solved by technology

[0002] The magnetic environment in the current mobile phone architecture scheme is relatively complicated. The layout of the magnetometer as a geomagnetic field detection device is limited in the whole machine environment. It is difficult to find a position with little magnetic interference on the PCB. It is necessary to use a PCB design hardware compensation solution to offset part of the magnetic field. interference

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