CN107040233A - Electronic equipment and its power splitter - Google Patents
Electronic equipment and its power splitter Download PDFInfo
- Publication number
- CN107040233A CN107040233A CN201710335960.7A CN201710335960A CN107040233A CN 107040233 A CN107040233 A CN 107040233A CN 201710335960 A CN201710335960 A CN 201710335960A CN 107040233 A CN107040233 A CN 107040233A
- Authority
- CN
- China
- Prior art keywords
- pin
- inductor
- electrically connected
- power divider
- capacitor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000003990 capacitor Substances 0.000 claims abstract description 32
- 238000003466 welding Methods 0.000 claims abstract description 10
- 239000003822 epoxy resin Substances 0.000 claims description 7
- 229920000647 polyepoxide Polymers 0.000 claims description 7
- 229910000859 α-Fe Inorganic materials 0.000 claims description 4
- 229920001342 Bakelite® Polymers 0.000 claims description 3
- 239000004637 bakelite Substances 0.000 claims description 3
- 239000004593 Epoxy Substances 0.000 claims description 2
- 238000002360 preparation method Methods 0.000 claims 1
- 238000003780 insertion Methods 0.000 abstract description 9
- 230000037431 insertion Effects 0.000 abstract description 9
- 239000000463 material Substances 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H7/00—Multiple-port networks comprising only passive electrical elements as network components
- H03H7/48—Networks for connecting several sources or loads, working on the same frequency or frequency band, to a common load or source
Landscapes
- Coils Or Transformers For Communication (AREA)
- Details Of Connecting Devices For Male And Female Coupling (AREA)
Abstract
The present invention relates to a kind of electronic equipment and its power splitter.A kind of power splitter includes housing, pin, capacitor, resistor and inductor；Housing has a closure inner chamber；Capacitor, inductor and resistor are located at interior intracavitary；Pin includes three pins.Three pins are used separately as input and two output ends.Inductor includes magnetic core, the first inductance and the second inductance；First inductance and the second inductance are wrapped on magnetic core；First inductance is connected with input pin and an output pin respectively；Second inductance distinguishes input pin and in addition an output pin connection.Capacitor is connected with input pin and reference ground pin respectively；Resistor is connected with two output pins respectively；Pin is welded on housing by spot welding mode.Above-mentioned power splitter, pin is welded on housing by spot welding mode, so as to realize the insertion loss of reduction power splitter.
Description
Technical Field
The present invention relates to the field of electronic information technologies, and in particular, to an electronic device and a power divider thereof.
Background
The power divider is a device which divides one path of input signal energy into two paths or multiple paths of energy with equal or unequal outputs. Or, the multiple signal energies are combined into one path to be output, which may also be referred to as a combiner. The traditional power divider adopts a winding type power divider. Therefore, the conventional power divider has high insertion loss, which is not favorable for signal transmission.
Disclosure of Invention
Accordingly, there is a need for a power divider with reduced insertion loss and an electronic device.
A power divider comprises a shell, pins, a capacitor, a resistor and an inductor; the shell is provided with a closed inner cavity; the capacitor, the inductor and the resistor are disposed within the internal cavity; the pins comprise a first pin, a second pin and a third pin; the first pin is used as an input end of the power divider; the second pin and the third pin are respectively used as two output ends of the power divider; the inductor comprises a magnetic core, a first inductance and a second inductance; the first inductor and the second inductor are wound on the magnetic core; one end of the first inductor is electrically connected with the first pin, and the other end of the first inductor is electrically connected with the second pin; one end of the second inductor is electrically connected with the first pin, and the other end of the second inductor is electrically connected with the third pin; one end of the capacitor is electrically connected with the first pin, and the other end of the capacitor is used for being connected with a reference ground end; one end of the resistor is electrically connected with the second pin, and the other end of the resistor is electrically connected with the third pin; the pins are welded on the shell in a spot welding mode; one end of the pin extends out of the shell and is used for being connected with external equipment.
In one embodiment, the device further comprises a fixed pin; the fixed pins are welded on the shell in a spot welding mode; one end of the fixing pin extends out of the shell and is used for fixing the power divider.
In one embodiment, the start terminal of the first inductor is electrically connected to the first pin; the end of the first inductor is electrically connected with the second pin; the starting end of the second inductor is electrically connected with the third pin; the end of the second inductor is electrically connected with the first pin.
In one embodiment, the start terminal of the first inductor is electrically connected to the first pin; the end of the first inductor is electrically connected with the second pin; the starting end of the second inductor is electrically connected with the first pin; and the end of the second inductor is electrically connected with the third pin.
In one embodiment, the material further comprises epoxy resin; the epoxy resin is filled in the inner cavity of the shell to fix the capacitor, the inductor and the resistor.
In one embodiment, the core is a ferrite core.
In one embodiment, the capacitor is made of COG.
In one embodiment, the housing is made of bakelite.
In one embodiment, the pins further comprise a fourth pin; the fourth pin is used for being connected with an external reference ground end; one end of the capacitor is electrically connected with the first pin, and the other end of the capacitor is electrically connected with the fourth pin.
An electronic device includes a first circuit module and a second circuit module; the power divider further comprises the power divider in any one of the embodiments; the input end of the power divider is used for receiving signal input; two output ends of the power divider are respectively connected with the first circuit module and the second circuit module to distribute the input signal power to the first circuit module and the second circuit module.
In the power divider, the inner cavity of the shell is provided with the capacitor, the inductor and the resistor. The power divider realizes power distribution through a capacitor, a resistor and an inductor. And the power divider realizes the input and output of signals through pins. The pins are welded on the shell in a spot welding mode, so that the insertion loss of the power divider is reduced.
Drawings
Fig. 1 is a schematic diagram of an internal structure of a power divider in an embodiment;
fig. 2 is a schematic external structural diagram of a power divider in an embodiment.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As shown in fig. 1, a power divider 10 includes a housing 100, pins, a capacitor 300, a resistor 500, and an inductor 400. The housing 100 has a closed interior 101. Capacitor 300, inductor 400, and resistor 500 are disposed within interior cavity 101.
The pins include a first pin 201, a second pin 203, and a third pin 205. The first pin 201 serves as an input terminal of the power divider 10, and is used for receiving a signal input. The second pin 203 and the third pin 205 serve as two output terminals of the power divider 10 for outputting signals. When an input signal is input from the first pin 201, the power is distributed in the power divider 10, and then the input signal is output from the second pin 203 and the third pin 205, respectively. In this embodiment, the pins further include a fourth pin 207. The fourth pin 207 is for connection to an external reference ground.
Inductor 400 includes a magnetic core, a first inductance, and a second inductance (not shown). The first inductor and the second inductor are wound on the magnetic core. One end of the first inductor is electrically connected to the first pin 201, and the other end is electrically connected to the second pin 203. One end of the second inductor is electrically connected to the first pin 201, and the other end is electrically connected to the third pin 205.
One end of the capacitor 300 is electrically connected to the first pin 201, and the other end is electrically connected to the fourth pin 207. The end of the capacitor 300 connected to the first pin 201 is further connected to the first inductor and the second inductor in the inductor 400. One end of the resistor 500 is electrically connected to the second pin 203, and the other end is electrically connected to the third pin 205. The first pin 201, the second pin 203, the third pin 205 and the fourth pin 207 are welded to the housing 200 by spot welding. The first pin 201, the second pin 203, the third pin 205 and the fourth pin 207 respectively have one end extending out of the housing 100 for connecting with an external device for inputting and outputting signals.
The power divider 10, the inductor 400 in the inner cavity 101 of the housing 100, the capacitor 300 and the resistor 500 form a structural circuit of the power divider 10, so as to implement power distribution of the power divider 10. The first pin 201, the second pin 203, the third pin 205 and the fourth pin 207 of the power divider 10 are assembled on the housing 100 by spot welding. The insertion loss of the power divider 10 is reduced compared to the conventional wire-wound type.
In this embodiment, the core of the inductor 400 is made of ferrite. The ferrite core provides low loss in inductor 400, thereby further reducing the insertion loss of power divider 10. Meanwhile, the line-to-line capacitance of the inductor 400 can be determined by the twisted wire, and the insertion loss of the power divider 10 can be further reduced by controlling the line-to-line capacitance of the inductor 400. The inductance in inductor 400 is the enameled copper wire inductance. The enameled copper wire inductor is made of a material which can resist high temperature of 180 ℃, so that the requirement of high temperature resistance of the power divider 10 is met. The magnetic core is made of a material with a good temperature coefficient under the condition of ensuring low loss, so that the power divider 10 can work at high and low working temperatures.
In the present embodiment, the start terminal of the first inductor in the inductor 400 is electrically connected to the first pin 201, and the end terminal of the first inductor is electrically connected to the second pin 203. The start terminal of the second inductor in the inductor 400 is electrically connected to the third pin 205, and the end terminal of the second inductor is electrically connected to the first pin 201. Therefore, the inductance in inductor 400 is differential mode inductance. The signals output in the second pin 203 and the third pin 205 are in opposite phase.
In other embodiments, the beginning terminal of the first inductor of the inductor 400 is electrically connected to the first pin 201, and the ending terminal of the first inductor is electrically connected to the second pin 203. The start terminal of the second inductor in the inductor 400 is electrically connected to the first pin 201, and the end terminal of the second inductor is electrically connected to the third pin 205. Thus, the inductance in inductor 400 is the common mode inductance. The phase of the signals output from the second pin 203 and the third pin 205 are the same.
The connection method of the first inductor and the second inductor in the inductor 400 is not limited to the connection method described in the above embodiment. In other embodiments, the connection manner of the first inductance and the second inductance in the inductor 400 further includes other connection manners that make the inductance in the inductor 400 be common mode inductance or differential mode inductance, so that the phases of the output signals of the second pin 203 and the third pin 205 are the same or opposite.
The power divider 10 further includes a fixing pin to fix the power divider 10. In the present embodiment, the fixing pins include a pin 601 and a pin 603. The pins 601 and 603 are respectively disposed at two symmetrical ends of the housing 100 to achieve balanced fixation of the power divider 10. The pins 601 and 603 are welded to the housing 100 by spot welding, and one end of each of the two pins protrudes out of the housing 100 to fix the power divider 10. Therefore, the insertion loss of the power divider 10 can be further reduced. In other embodiments, the number and the positions of the fixing pins for fixing the power divider 10 may be set according to practical situations.
The power divider 10 further includes an epoxy 700 and a plurality of connecting wires connected between devices in the power divider 10 and between the devices and the pins. The connecting wires in the power divider 10 are made of materials with high temperature resistance up to 180 ℃, so that the requirement of high temperature resistance of the power divider 10 is met. The epoxy resin 700 is filled in the cavity 101 of the housing 100 to fix the devices and the plurality of connection lines in the cavity 101. In the present embodiment, the epoxy resin 700 is a two-component epoxy resin. The two-component epoxy resin has good fluidity and small stress, so that the inductor 400, the capacitor 300, the resistor 500 and a plurality of connecting wires inside the power divider 10 form a whole with the housing 100, and therefore, the vibration resistance and the shock resistance of the power divider 10 can be improved.
The capacitor 300 employs a capacitor having a low loss property, so that the insertion loss of the power divider 10 can be further reduced. In the present embodiment, the capacitor 300 is a COG (chip on glass) capacitor. The resistor 500 is a precision resistor with good temperature performance. The housing 100 is made of a high temperature resistant bakelite. Therefore, the whole power divider 10 has better high temperature resistance.
The invention also provides electronic equipment. An electronic device includes a first circuit module and a second circuit module, and further includes the power divider 10 according to any of the embodiments. As shown in fig. 2, the input 2011 of the power divider 10 is configured to receive a signal input. Two output terminals of the power divider 10, i.e., the output terminal 2033 and the output terminal 2055, are connected to the first circuit block and the second circuit block, respectively. The power divider 10 distributes the input signal power to the first circuit block and the second circuit block.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A power divider comprises a shell, pins, a capacitor, a resistor and an inductor; it is characterized in that the preparation method is characterized in that,
the shell is provided with a closed inner cavity; the capacitor, the inductor and the resistor are disposed within the internal cavity;
the pins comprise a first pin, a second pin and a third pin; the first pin is used as an input end of the power divider; the second pin and the third pin are respectively used as two output ends of the power divider;
the inductor comprises a magnetic core, a first inductance and a second inductance; the first inductor and the second inductor are wound on the magnetic core; one end of the first inductor is electrically connected with the first pin, and the other end of the first inductor is electrically connected with the second pin; one end of the second inductor is electrically connected with the first pin, and the other end of the second inductor is electrically connected with the third pin;
one end of the capacitor is electrically connected with the first pin, and the other end of the capacitor is used for being connected with a reference ground end;
one end of the resistor is electrically connected with the second pin, and the other end of the resistor is electrically connected with the third pin; wherein,
the pins are welded on the shell in a spot welding mode; one end of the pin extends out of the shell and is used for being connected with external equipment.
2. The power divider of claim 1, further comprising a fixed pin; the fixed pins are welded on the shell in a spot welding mode; one end of the fixing pin extends out of the shell and is used for fixing the power divider.
3. The power divider of claim 1, wherein a start terminal of the first inductor is electrically connected to the first pin; the end of the first inductor is electrically connected with the second pin; the starting end of the second inductor is electrically connected with the third pin; the end of the second inductor is electrically connected with the first pin.
4. The power divider of claim 1, wherein a start terminal of the first inductor is electrically connected to the first pin; the end of the first inductor is electrically connected with the second pin; the starting end of the second inductor is electrically connected with the first pin; and the end of the second inductor is electrically connected with the third pin.
5. The power divider of claim 1, further comprising an epoxy; the epoxy resin is filled in the inner cavity of the shell to fix the capacitor, the inductor and the resistor.
6. The power divider of claim 1, wherein the magnetic core is a ferrite core.
7. The power divider of claim 1, wherein the capacitor is a COG capacitor.
8. The power divider of claim 1, wherein the housing is a bakelite housing.
9. The power divider of claim 1, wherein the pins further comprise a fourth pin; the fourth pin is used for being connected with an external reference ground end; one end of the capacitor is electrically connected with the first pin, and the other end of the capacitor is electrically connected with the fourth pin.
10. An electronic device includes a first circuit module and a second circuit module; characterized by further comprising the power divider of any one of claims 1-9; the input end of the power divider is used for receiving signal input; two output ends of the power divider are respectively connected with the first circuit module and the second circuit module to distribute the input signal power to the first circuit module and the second circuit module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710335960.7A CN107040233B (en) | 2017-05-12 | 2017-05-12 | Electronic equipment and power divider thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710335960.7A CN107040233B (en) | 2017-05-12 | 2017-05-12 | Electronic equipment and power divider thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107040233A true CN107040233A (en) | 2017-08-11 |
| CN107040233B CN107040233B (en) | 2024-06-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710335960.7A Active CN107040233B (en) | 2017-05-12 | 2017-05-12 | Electronic equipment and power divider thereof |
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| Country | Link |
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| CN (1) | CN107040233B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109037869A (en) * | 2018-07-11 | 2018-12-18 | 深圳振华富电子有限公司 | High-temperature adaptability power splitter |
| CN109067380A (en) * | 2018-07-11 | 2018-12-21 | 深圳振华富电子有限公司 | Antivibration dynamic formula power splitter |
| CN109066040A (en) * | 2018-07-11 | 2018-12-21 | 深圳振华富电子有限公司 | Low insertion loss formula power splitter |
| CN109103557A (en) * | 2018-07-11 | 2018-12-28 | 深圳振华富电子有限公司 | Three road power splitters |
| CN113224492A (en) * | 2021-04-19 | 2021-08-06 | 中国电子科技集团公司第二十九研究所 | Ultra-wideband power divider chip based on mutual inductance coupling |
| CN113257547A (en) * | 2021-05-31 | 2021-08-13 | 深圳振华富电子有限公司 | Radio frequency pulse transformer |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109037869A (en) * | 2018-07-11 | 2018-12-18 | 深圳振华富电子有限公司 | High-temperature adaptability power splitter |
| CN109067380A (en) * | 2018-07-11 | 2018-12-21 | 深圳振华富电子有限公司 | Antivibration dynamic formula power splitter |
| CN109066040A (en) * | 2018-07-11 | 2018-12-21 | 深圳振华富电子有限公司 | Low insertion loss formula power splitter |
| CN109103557A (en) * | 2018-07-11 | 2018-12-28 | 深圳振华富电子有限公司 | Three road power splitters |
| CN109066040B (en) * | 2018-07-11 | 2024-06-14 | 深圳振华富电子有限公司 | Low insertion loss type power divider |
| CN109067380B (en) * | 2018-07-11 | 2024-06-21 | 深圳振华富电子有限公司 | Vibration-resistant power divider |
| CN113224492A (en) * | 2021-04-19 | 2021-08-06 | 中国电子科技集团公司第二十九研究所 | Ultra-wideband power divider chip based on mutual inductance coupling |
| CN113224492B (en) * | 2021-04-19 | 2021-12-28 | 中国电子科技集团公司第二十九研究所 | Ultra-wideband power divider chip based on mutual inductance coupling |
| CN113257547A (en) * | 2021-05-31 | 2021-08-13 | 深圳振华富电子有限公司 | Radio frequency pulse transformer |
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|---|---|
| CN107040233B (en) | 2024-06-21 |
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