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Filter and electromagnetic device

A filter, external conduction technology, applied in the direction of electrical components, electrical component structure associations, circuits, etc., can solve the problem that the filter impedance is difficult to be precisely controlled, and achieve the effect of easy and precise control

Pending Publication Date: 2021-06-29
SHENNAN CIRCUITS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, due to the influence of many factors, the impedance of the integrated filter is difficult to be precisely controlled

Method used

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  • Filter and electromagnetic device
  • Filter and electromagnetic device
  • Filter and electromagnetic device

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Embodiment Construction

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

[0023] see Figure 1-Figure 3 , figure 1 is a structural schematic diagram of an embodiment of the filter of the present application, figure 2 yes figure 1 The schematic diagram of the cross-sectional structure of the filter along A-A, image 3 yes figure 1 Schematic diagram of part of the structure of the filter.

[0024] In this embodiment, the filter may include a substrate 10 , a magnetic core 20 , a plurality of transmission line patterns 30 , a plurality of reference line patterns 40 and a ground terminal (n...

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Abstract

The invention discloses a filter and an electromagnetic device. The filter comprises a substrate, a magnetic core, a plurality of transmission line patterns, a plurality of reference line patterns and a grounding end, the substrate defines an annular accommodating groove, and the magnetic core is accommodated in the annular accommodating groove; the plurality of transmission line patterns are respectively arranged on two opposite sides of the substrate and are arranged at intervals along the circumferential direction of the annular accommodating groove, and the plurality of transmission line patterns form a transmission coil loop for winding the magnetic core to transmit signals; the plurality of reference line patterns are respectively arranged on two opposite sides of the substrate and are arranged at intervals along the circumferential direction of the annular accommodating groove, and the plurality of reference line patterns form a reference coil loop which is mutually crossed with the transmission coil loop to jointly wind the magnetic core; the grounding end is connected with the reference coil loop. The implementation of the above mode facilitates the precise control of the impedance of the filter.

Description

technical field [0001] The present application relates to the technical field of integrated circuits, in particular to a filter and an electromagnetic device. Background technique [0002] With the development of miniaturization of electronic equipment, integrated electromagnetic devices are more and more favored by various manufacturers. Integrated filters are usually used to process signals, so that useful signals can pass through without attenuation as much as possible, and attenuate useless signals as much as possible, thereby improving the quality of signal transmission. [0003] However, due to the influence of various factors, it is difficult to precisely control the impedance of the integrated filter. Contents of the invention [0004] The technical problem mainly solved by the present application is to provide an integrated electromagnetic device and electronic device, which can facilitate and precisely control the impedance of the filter. [0005] In order to s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01F17/00H01F27/40
CPCH01F17/0033H01F27/40H01F2017/0073
Inventor 郭伟静
Owner SHENNAN CIRCUITS
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