filter

A filter and branch technology, applied in the field of signal processing devices, can solve problems such as unfavorable signal communication, and achieve the effects of reducing noise interference, small size, and strong filtering performance

Inactive Publication Date: 2020-01-07
AMBIT MICROSYSTEMS (SHANGHAI) LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, there are very few components to prevent noise interference in the 5G frequency band, which is not conducive to signal communication

Method used

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Embodiment Construction

[0044] see figure 1 and figure 2 , figure 1 It is a top view of an embodiment of the filter of the present invention. figure 2 It is a side view of an embodiment of the filter of the present invention. In this embodiment, figure 2 The side view is from figure 1 Schematic diagram of the side-looking filter at the lower left position.

[0045] The filter of the present invention is arranged on the substrate and is used for filtering the signal so as to suppress the interference of noise. The substrate is a commonly used printed circuit board (PCB, Printed Circuit Board), and its electrical characteristics can be selected according to the frequency of the signal to be suppressed. For example, choose the most commonly used glass fiber epoxy resin copper clad laminate (FR-4 copper clad laminate) and other multilayer boards. Such as figure 1 and figure 2 As shown, the filter includes a first part 10 , a second part 20 , a ground part 03 , a first coupling part 30 and a ...

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Abstract

A filter is arranged on a substrate and comprises a first part, a second part, a grounding part, a first coupling part and a second coupling part. The first part is arranged on the first layer of thesubstrate and used for feeding in a signal; the second part is arranged on the first layer and used for outputting the signal; the grounding part is arranged on the second layer of the substrate; thefirst coupling part is arranged on the first layer, electrically connected with the first part and the second part and connected with the grounding part through a through hole; and the second couplingpart is arranged on the first layer, electrically connected with the first part and the second part and connected with the grounding part through a through hole. According to the filter, the size isvery small, the powerful filtering efficiency is shown in a limited space, and not only is noise interference in the frequency band reduced, but also the light, thin, short and small product design can be achieved.

Description

technical field [0001] The invention relates to a signal processing device, in particular to a filter. Background technique [0002] At this stage, most mobile phones or tablet computers have multi-band communication modes, such as 2.4G WIFI (Wireless-Fidelity, Wireless Fidelity) and 5G WIFI. However, there are very few components to prevent noise interference in the 5G frequency band, which is not conducive to signal communication. Contents of the invention [0003] In view of this, it is necessary to provide a component that prevents signal interference in the 5G frequency band to solve the above shortcomings. [0004] A filter provided by an embodiment of the present invention is disposed on a substrate, and the filter includes a first part, a second part, a ground part, a first coupling part and a second coupling part. Among them, the first part is set on the first layer of the substrate for feeding in signals; the second part is set on the first layer for outputting...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01P1/20
CPCH01P1/20
Inventor 许铭显邓喜荣
Owner AMBIT MICROSYSTEMS (SHANGHAI) LTD
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