CN213462857U - Electromagnetic radiation suppression device and electronic component - Google Patents
Electromagnetic radiation suppression device and electronic component Download PDFInfo
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- CN213462857U CN213462857U CN202022581590.5U CN202022581590U CN213462857U CN 213462857 U CN213462857 U CN 213462857U CN 202022581590 U CN202022581590 U CN 202022581590U CN 213462857 U CN213462857 U CN 213462857U
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Abstract
An embodiment of the utility model provides an electromagnetic radiation suppression device and electronic components, electromagnetic radiation suppression device include conductor and magnetic substance. The magnetic body has the first surface that is used for laminating to the circuit board, and the conductor wears to establish the magnetic body, and the both ends of conductor wear out the magnetic body and extend to the direction of circuit board to with circuit board attached, so that the specific frequency channel's that the circuit that the magnetic body restraines the conductor and inserts electromagnetic radiation that produces. Through the technical scheme, after the circuit connected with the conductor is electrified, the magnetic body can inhibit electromagnetic radiation generated by the circuit, a better filtering effect is realized, the problems of electromagnetic compatibility and the like can be effectively avoided, the frequency band of a high-frequency signal which can be inhibited along with the change of the size of the magnetic body is changed, and the specific frequency band in the circuit can be specifically inhibited by adjusting the size of the magnetic body.
Description
Technical Field
The utility model relates to an electronic components technical field especially relates to an electromagnetic radiation suppression device and electronic components.
Background
At present, high-frequency radiation can be generated in the operation process of a circuit due to operation signals on a high-frequency electronic circuit, and if the high-frequency radiation cannot be effectively inhibited, problems such as electromagnetic compatibility and the like can be caused, so that the stability of the circuit is poor. In the prior art, a metal shielding cover is usually adopted to inhibit high-frequency radiation, but the metal shielding cover has high cost and large requirement on design space, and wave-absorbing materials are also adopted to absorb or greatly weaken the energy of electromagnetic waves, but the wave-absorbing materials also have the problems of high design cost and large occupied space.
SUMMERY OF THE UTILITY MODEL
To the above-mentioned technical problem that exists among the prior art, the utility model provides an electromagnetic radiation suppression device and electronic components, through the relation of wearing to establish of conductor and magnetic substance, can make specific frequency produce the oscillation effect when the circuit circular telegram that the conductor inserts to make unable continuation after electric field and the magnetic field interconversion offset propagate in order to reach the filter effect.
An embodiment of the utility model provides an electromagnetic radiation suppression device, include:
a conductor;
the magnetic substance, it has the first surface that is used for laminating to the circuit board, the conductor is worn to establish the magnetic substance, just the both ends of conductor are worn out behind the magnetic substance the direction of circuit board extends, and with the circuit board is attached, so that the magnetic substance restraines the electromagnetic radiation of the specific frequency channel that the circuit that the conductor accessed produced.
In some embodiments, the conductors pass out of opposite ends of the magnetic body.
In some embodiments, two ends of the conductor extend to the circuit board in a manner of being attached to end faces of two opposite ends of the magnetic body, so as to increase a contact area between the conductor and the magnetic body.
In some embodiments, the magnetic body is made of sendust or ferrite magnetic material.
In some embodiments, the magnetic body is in a cube shape, the conductor is arranged in the middle of the magnetic body in a penetrating mode, and the embedded portion of the conductor in the magnetic body is parallel to the board surface where the circuit board is located.
In some embodiments, a first surface of the magnetic body has a length of 30 mils and a width of 22 mils, and a second surface of the magnetic body adjacent to the first surface has a length of 30 mils and a width of 24 mils, the conductor passing through the second surface of the magnetic body and out a third surface opposite the second surface to suppress electromagnetic radiation at an electromagnetic wave frequency of 4 gigahertz.
In some embodiments, a first surface of the magnetic body has a length of 143 mils and a width of 3 mils, and a second surface of the magnetic body adjacent to the first surface has a length of 143 mils and a width of 3 mils, the conductor penetrating through the second surface of the magnetic body and penetrating out of a third surface opposite the second surface to suppress electromagnetic radiation at an electromagnetic wave frequency of 4.6 gigahertz; or
The first surface of the magnetic body has a length of 30 mils and a width of 22 mils, and the second surface of the magnetic body adjacent to the first surface has a length of 30 mils and a width of 36 mils, and the conductor penetrates through the second surface of the magnetic body and penetrates out through a third surface opposite to the second surface to suppress electromagnetic radiation having an electromagnetic wave frequency of 3.78 gigahertz.
In some embodiments, a first surface of the magnetic body has a length of 44 mils and a width of 30 mils, and a second surface of the magnetic body adjacent to the first surface has a length of 36 mils and a width of 30 mils, the conductor penetrating through the second surface of the magnetic body and penetrating out of a third surface opposite the second surface to suppress electromagnetic radiation at an electromagnetic wave frequency of 2.9 gigahertz; or
The first surface of the magnetic body has a length of 66 mils and a width of 30 mils, and the second surface of the magnetic body adjacent to the first surface has a length of 36 mils and a width of 30 mils, and the conductor penetrates through the second surface of the magnetic body and exits through a third surface opposite the second surface to suppress electromagnetic radiation at an electromagnetic wave frequency of 2.76 gigahertz.
In some embodiments, a first surface of the magnetic body has a length of 60 mils and a width of 20 mils, and a second surface of the magnetic body adjacent to the first surface has a length of 60 mils and a width of 12 mils, the conductor passing through the second surface of the magnetic body and out a third surface opposite the second surface to suppress electromagnetic radiation at an electromagnetic wave frequency of 4.8 gigahertz; or
A first surface of the magnetic body has a length of 60 mils and a width of 60 mils, and a second surface of the magnetic body adjacent to the first surface has a length of 60 mils and a width of 60 mils, the conductor penetrating through the second surface of the magnetic body and penetrating out of a third surface opposite the second surface to suppress electromagnetic radiation at an electromagnetic wave frequency of 2.38 gigahertz; or
The first surface of the magnetic body has a length of 60 mils and a width of 20 mils, and a second surface of the magnetic body adjacent to the first surface has a length of 60 mils and a width of 60 mils, and the conductor penetrates through the second surface of the magnetic body and penetrates out through a third surface opposite to the second surface to suppress electromagnetic radiation at an electromagnetic wave frequency of 5.1 gigahertz.
An embodiment of the utility model provides an electronic components is still provided, including the circuit board, electronic components still includes foretell electromagnetic radiation suppression device, electromagnetic radiation suppression device establish ties extremely on the circuit of circuit board.
Compared with the prior art, the utility model discloses beneficial effect lies in: the utility model discloses a first surface of magnetic substance laminating circuit board to and attached circuit board behind the magnetic substance is worn to establish by the conductor, after the circuit circular telegram that the conductor inserts, the electromagnetic radiation that the magnetic substance can restrain the circuit and produce, realize better filter effect, can avoid causing electromagnetic compatibility scheduling problem effectively, and the frequency channel of the high frequency signal that can restrain along with the change of the size of magnetic substance also changes thereupon, thereby also can be through the size of adjustment magnetic substance pointed the specific frequency channel that the suppression circuit produced. In addition, the magnetic body has a better technical effect than a component capable of suppressing high-frequency radiation in the prior art, for example, compared with a common-mode inductor, the magnetic body does not have an extra coil, so that generation of high inductance can be avoided, compared with filters with high insertion loss such as magnetic beads, capacitors and inductors, the magnetic body can better ensure integrity of high-frequency information, the structures of the conductor and the magnetic body are simpler, and the electromagnetic radiation suppression device is more convenient to be arranged at the source of a high-frequency signal for filtering and suppressing electromagnetic radiation.
Drawings
In the drawings, which are not necessarily drawn to scale, like reference numerals may describe similar components in different views. Like reference numerals having letter suffixes or different letter suffixes may represent different instances of similar components. The drawings illustrate various embodiments generally by way of example and not by way of limitation, and together with the description and claims serve to explain the disclosed embodiments. The same reference numbers will be used throughout the drawings to refer to the same or like parts, where appropriate. Such embodiments are illustrative, and are not intended to be exhaustive or exclusive embodiments of the present apparatus or method.
Fig. 1 is a schematic structural diagram of an electronic component including an electromagnetic radiation suppression device according to an embodiment of the present invention;
fig. 2 is a graph of S11 when the length, width and height of the magnetic material of the electromagnetic radiation suppressing device according to the embodiment of the present invention are 20 mil, 30 mil and 24 mil, respectively;
fig. 3 is a graph of S21 curves of the magnetic substance of the electromagnetic radiation suppressing device according to the embodiment of the present invention, when the length, width and height of the magnetic substance are 20 mil, 30 mil and 24 mil, respectively;
fig. 4 is a graph of S11 when the length, width and height of the magnetic body of the electromagnetic radiation suppressing device according to the embodiment of the present invention are 3 mils, 143 mils and 3 mils, respectively;
fig. 5 is a graph of S21 when the length, width and height of the magnetic material of the electromagnetic radiation suppressing device according to the embodiment of the present invention are 3 mils, 143 mils and 3 mils, respectively;
fig. 6 is a graph of S11 when the length, width and height of the magnetic material of the electromagnetic radiation suppressing device according to the embodiment of the present invention are 22 mil, 30 mil and 36 mil, respectively;
fig. 7 is a graph of S21 when the length, width and height of the magnetic material of the electromagnetic radiation suppressing device according to the embodiment of the present invention are 22 mil, 30 mil and 36 mil, respectively;
fig. 8 is a graph of S11 when the length, width and height of the magnetic material of the electromagnetic radiation suppressing device according to the embodiment of the present invention are 44 mil, 30 mil and 36 mil, respectively;
fig. 9 is a graph showing S21 curves when the length, width and height of the magnetic material of the electromagnetic radiation suppressing device according to the embodiment of the present invention are 44 mil, 30 mil and 36 mil, respectively;
fig. 10 is a graph showing S11 curves when the length, width and height of the magnetic material of the electromagnetic radiation suppressing device according to the embodiment of the present invention are 66 mil, 30 mil and 36 mil, respectively;
fig. 11 is a graph showing S21 curves when the length, width and height of the magnetic material of the electromagnetic radiation suppressing device according to the embodiment of the present invention are 66 mil, 30 mil and 36 mil, respectively;
fig. 12 is a graph showing S11 curves when the length, width and height of the magnetic material of the electromagnetic radiation suppressing device according to the embodiment of the present invention are 20 mil, 60 mil and 12 mil, respectively;
fig. 13 is a graph showing S21 curves when the length, width and height of the magnetic material of the electromagnetic radiation suppressing device according to the embodiment of the present invention are 20 mil, 60 mil and 12 mil, respectively;
fig. 14 is a graph showing S11 curves when the length, width and height of the magnetic material of the electromagnetic radiation suppressing device according to the embodiment of the present invention are 60 mils, 60 mils and 60 mils, respectively;
fig. 15 is a graph showing S21 curves when the length, width and height of the magnetic material of the electromagnetic radiation suppressing device according to the embodiment of the present invention are 60 mils, 60 mils and 60 mils, respectively;
fig. 16 is a graph showing S11 curves when the length, width and height of the magnetic material of the electromagnetic radiation suppressing device according to the embodiment of the present invention are 20 mil, 60 mil and 60 mil, respectively;
fig. 17 is a graph showing S21 curves when the length, width, and height of the magnetic material of the electromagnetic radiation suppressing device according to the embodiment of the present invention are 20 mils, 60 mils, and 60 mils, respectively.
The members denoted by reference numerals in the drawings:
1-a conductor; 2-a magnetic body; 21-a first surface; 22-a second surface; 3-circuit board.
Detailed Description
In order to make the technical solution of the present invention better understood by those skilled in the art, the present invention will be described in detail with reference to the accompanying drawings and the detailed description. The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and the specific embodiments, but not to be construed as limiting the invention.
The use of "first," "second," and similar terms in the description herein do not denote any order, quantity, or importance, but rather the terms are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that the element preceding the word covers the element listed after the word, and does not exclude the possibility that other elements are also covered. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.
In the present invention, when it is described that a specific device is located between a first device and a second device, an intervening device may or may not be present between the specific device and the first device or the second device. When a particular device is described as being coupled to other devices, that particular device may be directly coupled to the other devices without intervening devices or may be directly coupled to the other devices with intervening devices.
All terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs unless specifically defined otherwise. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate.
An embodiment of the utility model provides an electromagnetic radiation suppression device, as shown in fig. 1, electromagnetic radiation suppression device includes conductor 1 and magnetic substance 2. The magnetic body 2 has a first surface 21 for attaching to the circuit board 3, the conductor 1 penetrates through the magnetic body 2, and two ends of the conductor 1 extend in the direction of the circuit board 3 after penetrating through the magnetic body 2, and are attached to the circuit board 3, so that the magnetic body 2 suppresses electromagnetic radiation of a specific frequency band generated by a circuit connected to the conductor 1.
It can be understood that the conductor 1 may be a wire, and the magnetic body 2 may be connected to the circuit of the circuit board 3 through the wire penetrating therethrough, and when the circuit is powered on, the magnetic body 2 can suppress high-frequency radiation generated in the circuit, thereby avoiding problems such as electromagnetic compatibility.
Specifically, two ends of the conductor 1 may penetrate through the same side surface or different side surfaces of the magnetic body 2, the conductor 1 shown in fig. 1 penetrates through two opposite side surfaces of the magnetic body 2, and the conductor 1 may also penetrate through the magnetic body 2 repeatedly and then penetrate through the surface of the magnetic body 2, so that the conductor 1 can be in full contact with the magnetic body 2, the oscillation effect of a specific frequency in a high-frequency signal is increased, and the oscillation fully achieves a better filtering effect.
The utility model discloses a first surface 21 of 2 laminating circuit boards 3 of magnetic substance, and conductor 1 wears to establish attached circuit board 3 behind the magnetic substance 2, after the circuit circular telegram of conductor 1 access, the electromagnetic radiation that the circuit produced can be suppressed to magnetic substance 2, realize better filtering effect, can avoid causing electromagnetic compatibility scheduling problem effectively, and the specific frequency channel that can restrain along with the change of the size of magnetic substance 2 also changes thereupon, thereby also can make things pointed to the specific frequency channel among the suppression high frequency circuit through the size of adjustment magnetic substance 2. In addition, magnetic substance 2 has better technical effect than the components and parts that can restrain high frequency radiation among the prior art, for example, compare in common mode inductance, this magnetic substance 2 does not have extra coil, consequently can avoid producing very high inductance, compare in the filters of high insertion loss such as magnetic bead, electric capacity, inductance, the integrality of assurance high frequency information that this magnetic substance 2 can be better, and the structure of conductor 1 and magnetic substance 2 is comparatively simple, be more convenient for set up this electromagnetic radiation suppression device at the source of high frequency signal and carry out filtering and electromagnetic radiation's suppression.
In some embodiments, the conductors 1 extend out of the opposite ends of the magnetic body 2, i.e., the opposite ends of the conductors 1 are spaced apart, so that a user can easily insert the conductors 1 into the circuit.
In some embodiments, two ends of the conductor 1 extend to the circuit board 3 in a manner of being attached to end faces of two opposite ends of the magnetic body 2, so as to increase a contact area between the conductor 1 and the magnetic body 2. As shown in fig. 1, the conductor 1 is attached to the magnetic body 2 and then extends to the circuit board 3, and the contact area between the conductor 1 and the magnetic body 2 is increased, so that the oscillation effect of a specific frequency in a high-frequency signal is increased, and the oscillation fully achieves a better filtering effect.
In some embodiments, the magnetic body 2 is made of sendust or ferrite magnetic material. The sendust or ferrite has high permeability, high magnetic saturation, high magnetic loss, and the like, and absorbs a magnetic field component in a high-frequency signal to suppress high-frequency radiation of a characteristic frequency in the high-frequency signal.
In some embodiments, as shown in fig. 1, the magnetic body 2 is in the shape of a cube, the conductor 1 is inserted through the middle of the magnetic body 2, and the embedded portion of the conductor 1 in the magnetic body 2 is parallel to the board surface on which the circuit board 3 is located. The first surface 21 of the magnetic body 2 is attached to the circuit board 3, and the conductor 1 is arranged on the second surface 22 and the third surface of the magnetic body 2 adjacent to the first surface 21 in a penetrating manner, wherein the second surface 22 and the third surface are arranged oppositely.
In some embodiments, as shown in fig. 2 and 3, the magnetic body 2 has a cubic shape, the first surface 21 of the magnetic body 2 has a length of 30 mils and a width of 22 mils, and the second surface 22 of the magnetic body 2 adjacent to the first surface 21 has a length of 30 mils and a width of 24 mils, and the conductor 1 penetrates through the second surface 22 of the magnetic body 2 and penetrates out through a third surface opposite to the second surface 22 to suppress electromagnetic radiation having an electromagnetic wave frequency of 4 gigahertz.
It is understood that in the case where the length, width, and height of the magnetic body 2 through which the conductor 1 is inserted are 20 mils, 30 mils, and 24 mils, respectively, the magnetic body 2 can suppress electromagnetic radiation of an electromagnetic wave frequency of 4 gigahertz in a high-frequency signal. Referring to fig. 2 and 3, the S11 graph in fig. 2 in which the length, width, and height of the magnetic body 2 are set to 20 mils, 30 mils, and 24 mils, respectively, and the S21 graph in fig. 3 in which the length, width, and height of the magnetic body 2 are set to 20 mils, 30 mils, and 24 mils, respectively, show that the magnetic body 2 having the length, width, and height of 20 mils, 30 mils, and 24 mils, respectively, can effectively suppress electromagnetic radiation having an electromagnetic wave frequency of 4 gigahertz, as shown by the experimental data shown in fig. 2 and 3.
It should be noted that, as will be appreciated by those skilled in the art based on the common general knowledge, the S11 graph reflects the input reflection coefficient, i.e., the ratio of the reflected power to the incident power, and the abscissa of the graph is frequency in gigahertz (GHz) and the ordinate is S parameter in decibels (dB), where S parameter refers to the ratio of the reflected power to the incident power. The graph of S21 reflects the forward transmission coefficient, i.e., the ratio of transmitted power to incident power, plotted on the abscissa as frequency and on the ordinate as S parameter, where S parameter refers to the ratio of transmitted power to incident power. In particular, the above-mentioned S parameters are all called scattering parameters, and the S parameters can describe the frequency domain characteristics of the transmission channel.
In some embodiments, as shown in fig. 4 and 5, the magnetic body 2 has a cubic shape, the first surface 21 of the magnetic body 2 has a length of 143 mils and a width of 3 mils, and the second surface 22 of the magnetic body 2 adjacent to the first surface 21 has a length of 143 mils and a width of 3 mils, and the conductor 1 penetrates the second surface 22 of the magnetic body 2 and penetrates out of a third surface opposite to the second surface 22 to suppress electromagnetic radiation having an electromagnetic wave frequency of 4.6 gigahertz.
It is understood that, in the case where the length, width, and height of the magnetic body 2 through which the conductor 1 is inserted are 3 mils, 143 mils, and 3 mils, respectively, the magnetic body 2 can suppress electromagnetic radiation of an electromagnetic wave frequency of 4.6 gigahertz in a high-frequency signal. With reference to fig. 4 and 5, the S11 plots for the case where the length, width, and height of the magnetic body 2 were set to 3 mils, 143 mils, and 3 mils, respectively, as shown in fig. 4, and S21 plots for the case where the length, width, and height of the magnetic body 2 were set to 3 mils, 143 mils, and 3 mils, respectively, as shown in the experimental data shown in fig. 4 and 5, respectively, indicate that the magnetic body 2 having the length, width, and height of 3 mils, respectively, is capable of effectively suppressing electromagnetic radiation having an electromagnetic wave frequency of 4.6 gigahertz.
In some embodiments, as shown in fig. 6 and 7, the magnetic body 2 has a cubic shape, the first surface 21 of the magnetic body 2 has a length of 30 mils and a width of 22 mils, and the second surface 22 of the magnetic body 2 adjacent to the first surface 21 has a length of 30 mils and a width of 36 mils, and the conductor 1 penetrates the second surface 22 of the magnetic body 2 and penetrates out of a third surface opposite to the second surface 22 to suppress electromagnetic radiation having an electromagnetic wave frequency of 3.78 gigahertz.
It is understood that in the case where the length, width, and height of the magnetic body 2 through which the conductor 1 is inserted are 22 mils, 30 mils, and 36 mils, respectively, the magnetic body 2 can suppress electromagnetic radiation of an electromagnetic wave frequency of 3.78 gigahertz in a high-frequency signal. Referring to fig. 6 and 7, the S11 plots for the case where the length, width, and height of magnetic body 2 were set to 22 mils, 30 mils, and 36 mils, respectively, as shown in fig. 6 and 7, and the S21 plots for the case where the length, width, and height of magnetic body 2 were set to 22 mils, 30 mils, and 36 mils, respectively, as shown in the experimental data shown in fig. 6 and 7, respectively, it was possible to show that magnetic body 2 having the length, width, and height of 22 mils, 30 mils, and 36 mils, respectively, was able to effectively suppress electromagnetic radiation having an electromagnetic wave frequency of 3.78 gigahertz, as shown in the above-.
In some embodiments, as shown in fig. 8 and 9, magnetic body 2 has a cubic shape, first surface 21 of magnetic body 2 has a length of 44 mils and a width of 30 mils, and second surface 22 of magnetic body 2 adjacent to first surface 21 has a length of 36 mils and a width of 30 mils, and conductor 1 penetrates second surface 22 of magnetic body 2 and exits through a third surface opposite to second surface 22 to suppress electromagnetic radiation having an electromagnetic wave frequency of 2.9 gigahertz.
It is understood that in the case where the length, width, and height of the magnetic body 2 through which the conductor 1 is pierced are 44 mils, 30 mils, and 36 mils, respectively, the magnetic body 2 can suppress electromagnetic radiation of an electromagnetic wave frequency of 2.9 gigahertz in a high-frequency signal. Referring to fig. 8 and 9, the S11 graph for magnetic body 2 of fig. 8 for setting the length, width and height of 44 mil, 30 mil and 36 mil, respectively, and the S21 graph for magnetic body 2 of fig. 9 for setting the length, width and height of 44 mil, 30 mil and 36 mil, respectively, show that magnetic body 2 of 44 mil, 30 mil and 36 mil, respectively, can effectively suppress electromagnetic radiation having an electromagnetic wave frequency of 2.9 gigahertz, as shown by the experimental data shown in fig. 8 and 9.
In some embodiments, as shown in fig. 10 and 11, magnetic body 2 has a cubic shape, first surface 21 of magnetic body 2 has a length of 66 mils and a width of 30 mils, and second surface 22 of magnetic body 2 adjacent to first surface 21 has a length of 36 mils and a width of 30 mils, and conductor 1 penetrates through second surface 22 of magnetic body 2 and exits through a third surface opposite to second surface 22 to suppress electromagnetic radiation having an electromagnetic wave frequency of 2.76 gigahertz.
It is understood that, in the case where the length, width, and height of the magnetic body 2 through which the conductor 1 is inserted are 66 mils, 30 mils, and 36 mils, respectively, the magnetic body 2 can suppress electromagnetic radiation of an electromagnetic wave frequency of 2.76 gigahertz in a high-frequency signal. Referring to fig. 10 and 11, the S11 plots for the case where the length, width, and height of magnetic body 2 are set to 66 mils, 30 mils, and 36 mils, respectively, as shown in fig. 10 and fig. 11, and the S21 plots for the case where the length, width, and height of magnetic body 2 are set to 66 mils, 30 mils, and 36 mils, respectively, as shown in the experimental data shown in fig. 10 and fig. 11, respectively, it can be shown that magnetic body 2 having the length, width, and height of 66 mils, 30 mils, and 36 mils, respectively, can effectively suppress electromagnetic radiation having an electromagnetic wave frequency of 2.76 gigahertz.
In some embodiments, as shown in fig. 12 and 13, the magnetic body 2 has a cubic shape, the first surface 21 of the magnetic body 2 has a length of 60 mils and a width of 20 mils, and the second surface 22 of the magnetic body 2 adjacent to the first surface 21 has a length of 60 mils and a width of 12 mils, and the conductor 1 penetrates the second surface 22 of the magnetic body 2 and penetrates out of a third surface opposite to the second surface 22 to suppress electromagnetic radiation having an electromagnetic wave frequency of 4.8 ghz.
It is understood that in the case where the length, width, and height of the magnetic body 2 through which the conductor 1 is pierced are 20 mils, 60 mils, and 12 mils, respectively, the magnetic body 2 can suppress electromagnetic radiation of an electromagnetic wave frequency of 4.8 gigahertz in a high-frequency signal. With reference to fig. 12 and 13, the S11 graph in fig. 12 in which the length, width, and height of the magnetic body 2 are set to 20 mils, 60 mils, and 12 mils, respectively, and the S21 graph in fig. 13 in which the length, width, and height of the magnetic body 2 are set to 20 mils, 60 mils, and 12 mils, respectively, show that the magnetic body 2 having the length, width, and height of 20 mils, 60 mils, and 12 mils, respectively, can effectively suppress electromagnetic radiation having an electromagnetic wave frequency of 4.8 ghz, as shown by the experimental data shown in fig. 12 and 13.
In some embodiments, as shown in fig. 14 and 15, the magnetic body 2 has a cubic shape, the first surface 21 of the magnetic body 2 has a length of 60 mils and a width of 60 mils, and the second surface 22 of the magnetic body 2 adjacent to the first surface 21 has a length of 60 mils and a width of 60 mils, and the conductor 1 penetrates through the second surface 22 of the magnetic body 2 and penetrates out through a third surface opposite to the second surface 22 to suppress electromagnetic radiation having an electromagnetic wave frequency of 2.38 gigahertz.
It is understood that, in the case where the length, width, and height of the magnetic body 2 through which the conductor 1 is pierced are 60 mils, and 60 mils, respectively, the magnetic body 2 can suppress electromagnetic radiation of an electromagnetic wave frequency of 2.38 gigahertz in a high-frequency signal. With reference to fig. 14 and 15, the S11 plots for the magnetic body 2 of fig. 14 when the length, width and height were set to 60 mils, 60 mils and 60 mils, respectively, and the S21 plots for the magnetic body 2 of fig. 15 when the length, width and height were set to 60 mils, 60 mils and 60 mils, respectively, show that the magnetic body 2 of 60 mils, 60 mils and 60 mils, respectively, can effectively suppress electromagnetic radiation having an electromagnetic wave frequency of 2.38 gigahertz, as shown by the experimental data shown in fig. 14 and 15.
In some embodiments, as shown in fig. 16 and 17, the magnetic body 2 has a cubic shape, the first surface 21 of the magnetic body 2 has a length of 60 mils and a width of 20 mils, and the second surface 22 of the magnetic body 2 adjacent to the first surface 21 has a length of 60 mils and a width of 60 mils, and the conductor 1 penetrates the second surface 22 of the magnetic body 2 and penetrates out of a third surface opposite to the second surface 22 to suppress electromagnetic radiation having an electromagnetic wave frequency of 5.1 gigahertz.
It is understood that in the case where the length, width, and height of the magnetic body 2 through which the conductor 1 is inserted are 20 mils, 60 mils, and 60 mils, respectively, the magnetic body 2 can suppress electromagnetic radiation of an electromagnetic wave frequency of 5.1 gigahertz in a high-frequency signal. With reference to fig. 16 and 17, the S11 plots for the magnetic body 2 of fig. 16 set to have a length, a width, and a height of 20 mils, 60 mils, and 60 mils, respectively, and the S21 plots for the magnetic body 2 of fig. 17 set to have a length, a width, and a height of 20 mils, 60 mils, and 60 mils, respectively, show that the magnetic body 2 of 20 mils, 60 mils, and 60 mils, respectively, can effectively suppress electromagnetic radiation having an electromagnetic wave frequency of 5.1 gigahertz, as shown by the experimental data shown in fig. 16 and 17.
The embodiment of the utility model provides an electronic components is still provided, and electronic components includes circuit board 3, still includes foretell electromagnetic radiation suppression device, and electromagnetic radiation suppression device establishes ties to circuit board 3's circuit on. The electronic component adopting the electromagnetic radiation suppression device can suppress specific frequency bands in the high-frequency circuit in a targeted manner, achieves a good filtering effect, and effectively avoids the problems of electromagnetic compatibility and the like.
Moreover, although exemplary embodiments have been described herein, the scope thereof includes any and all embodiments based on the present invention with equivalent elements, modifications, omissions, combinations (e.g., of various embodiments across), adaptations or variations. The elements of the claims are to be interpreted broadly based on the language employed in the claims and not limited to examples described in the present specification or during the prosecution of the application, which examples are to be construed as non-exclusive. It is intended, therefore, that the specification and examples be considered as exemplary only, with a true scope and spirit being indicated by the following claims and their full scope of equivalents.
The above description is intended to be illustrative and not restrictive. For example, the above-described examples (or one or more versions thereof) may be used in combination with each other. For example, other embodiments may be used by those of ordinary skill in the art upon reading the above description. Additionally, in the foregoing detailed description, various features may be grouped together to streamline the disclosure. This should not be interpreted as an intention that a disclosed feature not claimed is essential to any claim. Rather, inventive subject matter may lie in less than all features of a particular disclosed embodiment. Thus, the following claims are hereby incorporated into the detailed description as examples or embodiments, with each claim standing on its own as a separate embodiment, and it is contemplated that these embodiments may be combined with each other in various combinations or permutations. The scope of the invention should be determined with reference to the appended claims, along with the full scope of equivalents to which such claims are entitled.
The above embodiments are only exemplary embodiments of the present invention, and are not intended to limit the present invention, and the protection scope of the present invention is defined by the claims. Various modifications and equivalents of the invention can be made by those skilled in the art within the spirit and scope of the invention, and such modifications and equivalents should also be considered as falling within the scope of the invention.
Claims (10)
1. An electromagnetic radiation suppression apparatus, comprising:
a conductor;
the magnetic substance, it has the first surface that is used for laminating to the circuit board, the conductor is worn to establish the magnetic substance, just the both ends of conductor are worn out behind the magnetic substance the direction of circuit board extends, and with the circuit board is attached, so that the magnetic substance restraines the electromagnetic radiation of the specific frequency channel that the circuit that the conductor accessed produced.
2. The electromagnetic radiation suppression device of claim 1, wherein said conductors extend out of opposite ends of said magnetic body.
3. The electromagnetic radiation suppression device of claim 2, wherein both ends of the conductor extend to the circuit board in a manner of being attached to end faces of the opposite ends of the magnetic body to increase a contact area between the conductor and the magnetic body.
4. The electromagnetic radiation suppression device of claim 3, wherein said magnetic body is made of sendust or ferrite magnetic material.
5. The apparatus according to claim 4, wherein said magnetic body has a cubic shape, said conductor is inserted through the middle of said magnetic body, and an embedded portion of said conductor in said magnetic body is parallel to a board surface on which said circuit board is located.
6. The apparatus according to claim 5, wherein the first surface of the magnetic body has a length of 30 mils and a width of 22 mils, and a second surface of the magnetic body adjacent to the first surface has a length of 30 mils and a width of 24 mils, and the conductor penetrates through the second surface of the magnetic body and penetrates out through a third surface opposite to the second surface to suppress electromagnetic radiation having an electromagnetic wave frequency of 4 gigahertz.
7. The electromagnetic radiation suppression device of claim 5, wherein a first surface of said magnetic body has a length of 143 mils and a width of 3 mils, and a second surface of said magnetic body adjacent to said first surface has a length of 143 mils and a width of 3 mils, said conductor penetrating through said second surface of said magnetic body and penetrating out through a third surface opposite said second surface to suppress electromagnetic radiation having an electromagnetic wave frequency of 4.6 gigahertz; or
The first surface of the magnetic body has a length of 30 mils and a width of 22 mils, and the second surface of the magnetic body adjacent to the first surface has a length of 30 mils and a width of 36 mils, and the conductor penetrates through the second surface of the magnetic body and penetrates out through a third surface opposite to the second surface to suppress electromagnetic radiation having an electromagnetic wave frequency of 3.78 gigahertz.
8. The electromagnetic radiation suppression device of claim 5, wherein a first surface of said magnetic body has a length of 44 mils and a width of 30 mils, and a second surface of said magnetic body adjacent to said first surface has a length of 36 mils and a width of 30 mils, said conductor penetrating through said second surface of said magnetic body and penetrating out through a third surface opposite said second surface to suppress electromagnetic radiation having an electromagnetic wave frequency of 2.9 gigahertz; or
The first surface of the magnetic body has a length of 66 mils and a width of 30 mils, and the second surface of the magnetic body adjacent to the first surface has a length of 36 mils and a width of 30 mils, and the conductor penetrates through the second surface of the magnetic body and exits through a third surface opposite the second surface to suppress electromagnetic radiation at an electromagnetic wave frequency of 2.76 gigahertz.
9. The electromagnetic radiation suppression device of claim 5, wherein a first surface of said magnetic body has a length of 60 mils and a width of 20 mils, and a second surface of said magnetic body adjacent to said first surface has a length of 60 mils and a width of 12 mils, said conductor penetrating through said second surface of said magnetic body and penetrating out through a third surface opposite said second surface to suppress electromagnetic radiation having an electromagnetic wave frequency of 4.8 gigahertz; or
A first surface of the magnetic body has a length of 60 mils and a width of 60 mils, and a second surface of the magnetic body adjacent to the first surface has a length of 60 mils and a width of 60 mils, the conductor penetrating through the second surface of the magnetic body and penetrating out of a third surface opposite the second surface to suppress electromagnetic radiation at an electromagnetic wave frequency of 2.38 gigahertz; or
The first surface of the magnetic body has a length of 60 mils and a width of 20 mils, and a second surface of the magnetic body adjacent to the first surface has a length of 60 mils and a width of 60 mils, and the conductor penetrates through the second surface of the magnetic body and penetrates out through a third surface opposite to the second surface to suppress electromagnetic radiation at an electromagnetic wave frequency of 5.1 gigahertz.
10. An electronic component comprising a circuit board, wherein the electronic component further comprises the electromagnetic radiation suppression device of any one of claims 1-9, the electromagnetic radiation suppression device being connected in series to a circuit of the circuit board.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202022581590.5U CN213462857U (en) | 2020-11-10 | 2020-11-10 | Electromagnetic radiation suppression device and electronic component |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022581590.5U CN213462857U (en) | 2020-11-10 | 2020-11-10 | Electromagnetic radiation suppression device and electronic component |
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| CN213462857U true CN213462857U (en) | 2021-06-15 |
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| CN202022581590.5U Active CN213462857U (en) | 2020-11-10 | 2020-11-10 | Electromagnetic radiation suppression device and electronic component |
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