CN215771567U - Small antenna tuner and transceiver - Google Patents
Small antenna tuner and transceiver Download PDFInfo
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- CN215771567U CN215771567U CN202121811876.6U CN202121811876U CN215771567U CN 215771567 U CN215771567 U CN 215771567U CN 202121811876 U CN202121811876 U CN 202121811876U CN 215771567 U CN215771567 U CN 215771567U
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Abstract
The utility model relates to the field of communication equipment, which comprises a small antenna tuner and a transceiver, wherein the small antenna tuner comprises a shell, a radio frequency control board, a network circuit board and a capacitance circuit board; the network circuit board is provided with an inductor; also includes a metal separator; the metal partition plate is arranged in the shell and connected with the shell to divide the shell into two cavities; the two cavities are a first cavity and a second cavity; the radio frequency control board is arranged in the first cavity; the network circuit board and the capacitor circuit board are respectively arranged on two side faces of the metal partition board, are respectively arranged in the first cavity and the second cavity, and conduct self heat to the shell through the metal partition board. The utility model overcomes the key problems of electromagnetic interference and heat dissipation in the miniaturization of the antenna tuner, improves the reliability of the antenna tuner, and enables the antenna tuner to adapt to the installation environment with small space and poor heat dissipation condition.
Description
Technical Field
The present invention relates to the field of communication devices, and more particularly, to a compact antenna tuner and transceiver.
Background
An antenna tuner, referred to as an antenna tuner, is used between the transmitter and the antenna. During tuning, the microprocessor controls the analog-to-digital converter to quantize sampling parameters provided by the detection circuit into digital signals, then the digital signals are read into the memory, and the state change of the matching network is controlled after the processing, so that impedance matching is realized. An antenna tuner is an impedance matching network that connects a transmitter to an antenna and enables impedance matching between the transmitter and the antenna, thereby maximizing the radiated power of the antenna at any frequency. The radio station is widely applied to ground, vehicle-mounted, ship-based and aviation short-wave radio stations.
The existing antenna tuner has large volume and weight and needs to be matched with a transceiver for use, and the two devices usually have independent installation spaces and are connected through cables, so that the airborne requirements cannot be met gradually. However, the application environment of the antenna tuner has poor heat dissipation conditions, and cannot provide forced heat dissipation by external force, and the antenna tuner needs to be cooled by natural convection and heat conduction during operation, so that the reduced volume means that the element pitch in the antenna tuner is reduced, and is not favorable for heat dissipation and electromagnetic isolation. The technical problem of reducing the installation space of the antenna tuner and ensuring the operation reliability of the antenna tuner needs to be solved urgently.
SUMMERY OF THE UTILITY MODEL
The present invention is directed to overcome at least one of the above-mentioned disadvantages of the prior art, and to provide a small antenna tuner and a transceiver embedded therein, which are used to reduce the installation space of the antenna tuner and ensure the reliability of heat dissipation and electromagnetic shielding.
The technical scheme adopted by the utility model comprises the following steps:
a small-sized antenna tuner comprises a shell, a radio frequency control board, a network circuit board and a capacitance circuit board; also includes a metal separator; the metal partition plate is arranged in the shell and connected with the shell to divide the shell into two cavities; the two cavities are a first cavity and a second cavity; the radio frequency control board is arranged in the first cavity; the network circuit board and the capacitor circuit board are respectively arranged on two side faces of the metal partition plate and are respectively arranged in the first cavity and the second cavity.
The metal partition board is used as a separation boundary line to divide the interior of the shell of the small antenna tuner into two relatively independent cavities, so that the electromagnetic interference between elements of the two cavities is reduced. The radio frequency control board, the network circuit board and the capacitor circuit board are sequentially distributed in the shell, the network circuit board and the capacitor circuit board with large operation heat are respectively arranged on two side faces of the metal partition board, the heat can be conducted to the shell through the metal partition board and then dissipated outwards, and the natural convection heat dissipation mode that the network circuit board and the capacitor circuit board emit heat to the surrounding air is combined, so that the heat dissipation efficiency of elements with high operation heat is effectively improved, and the phenomenon that local temperature is too high during operation is avoided. On the other hand, the radio frequency cables among the circuit boards are concise in connection and short in distance due to the distribution sequence of the radio frequency control board, the network circuit board and the capacitance circuit board, and the weight of the cables is reduced. The utility model overcomes the key problems of electromagnetic interference and heat dissipation in the miniaturization of the antenna tuner by the technical means of arranging the metal partition plate and reasonably arranging the elements, improves the reliability of the antenna tuner, enables the antenna tuner to adapt to the installation environment with small space and poor heat dissipation condition, and further enables the antenna tuner to effectively adapt to the installation of a carrier.
Further, a layer of heat conduction spacer is arranged between the network circuit board and the metal partition plate; the heat conducting spacer is made of composite heat conducting material.
The network circuit board integrates a plurality of inductors and other elements with larger operation heat, and the heating value is higher compared with a radio frequency control board and a capacitance circuit board, so that a heat conduction spacer made of composite heat conduction materials is additionally arranged between the network circuit board and the metal partition board. The edge of the heat conduction spacer can be connected with the shell, and the network circuit board conducts heat through the metal partition plate and the heat conduction spacer; the edge of the heat conduction spacer can also be arranged not to be connected with the shell, the heat conduction spacer is suspended in the first cavity and is fixed with the network circuit board through the clamping of the metal partition plate, and the heat of the network circuit board is conducted to the metal partition plate from the heat conduction spacer.
Further, the heat dissipation structure also comprises a heat dissipation framework; the heat dissipation framework is connected with the network circuit board; the inductor of the network circuit board is a winding inductor; and the winding of the winding inductor is wound on the heat dissipation framework.
The winding is the main source that generates heat of wire winding inductor, connects winding and casing through the heat dissipation skeleton, can effectively improve wire winding inductor's radiating efficiency to make the winding accomodate in first cavity regularly.
Further, the heat dissipation framework is cylindrical, and the cylinder wall is provided with a hollow part; one end face of the heat dissipation framework is connected with the network circuit board, and the other end face of the heat dissipation framework is attached to the side face, opposite to the network circuit board, of the shell.
The cylindrical heat dissipation framework penetrates through the first cavity, so that the winding wound on the cylindrical heat dissipation framework has the maximum dispersion degree, the winding is in close contact with the outer wall of the heat dissipation framework, the heat conductivity is improved, and the space between the metal partition plate and the side face of the shell is fully utilized.
Further, the side surface of the shell opposite to the network circuit board is divided into a first area and a second area in half; the first region is provided with a mounting groove which is sunken into the first cavity; the second area is provided with a hollow part; the radio frequency control board is arranged in the mounting groove.
The independent mounting groove of the radio frequency control board is further divided in the first cavity, so that the radio frequency control board, the network circuit board and the capacitor circuit board are provided with relatively independent mounting spaces, the electromagnetic interference among elements is reduced, and the electromagnetic shielding isolation effect in the shell is improved. The cross sectional area of radio frequency control panel compares in the cross sectional area of network circuit board and electric capacity circuit board less, still exists the part that can set up the fretwork behind the casing side sets up the mounting groove, and the fretwork is used for enlarging the heat radiating area of natural convection, improves the radiating efficiency.
Further, the inductor of the network circuit board is distributed on a part of the network circuit board, which is opposite to the second area and close to the bottom of the first cavity.
By adjusting the arrangement of elements on the network circuit board, the inductor with larger operation heat is distributed at the position opposite to the second area and close to the hollow part of the second area, so that a superior natural heat dissipation channel is formed. On the other hand, the inductor, which includes windings and/or a heat dissipating skeleton, is heavy and should be located near the bottom of the housing to keep the center of gravity of the housing balanced.
Further, be equipped with heat conduction silica gel between the network circuit board with the metal partition, and/or, the capacitance circuit board with be equipped with heat conduction silica gel between the metal partition.
The heat conduction silica gel has the advantages of large heat conductivity, stable property and certain viscosity, is arranged between the circuit board and the metal partition plate to improve the fit degree of the circuit board and the metal partition plate, and enhances heat conduction.
Further, the heat conduction spacer is provided with a hollow part.
Furthermore, positioning holes are formed in four corners of the network circuit board and the capacitor circuit board.
The technical scheme adopted by the utility model also comprises the following steps:
a transceiver having an embedded antenna tuner; the antenna tuner is a compact antenna tuner as described above.
The antenna tuner is installed inside the body of the transceiver, and because the volume of the transceiver is limited, a heat dissipation means such as a heat dissipation fan for forcing convection cannot be used, the volume of the antenna tuner needs to be adapted to the volume of the transceiver, and the antenna tuner has excellent heat dissipation performance. After the antenna tuner is installed in the body of the transceiver, the installation positions of the two devices do not need to be reserved independently, and the transceiver and the antenna tuner are integrated into a complete communication module for adjusting the antenna power amplifier.
Compared with the prior art, the utility model has the beneficial effects that:
(1) the technical means of arranging the metal partition plate and reasonably arranging the elements overcomes the key problems of electromagnetic interference and heat dissipation in the miniaturization of the antenna tuner, improves the reliability of the antenna tuner, and enables the antenna tuner to adapt to the installation environment with small space and poor heat dissipation condition;
(2) the heat conduction efficiency of the main heating element and the shell is improved by the heat dissipation framework and the multiple heat conduction materials between the circuit board and the metal partition plate;
(3) the radio frequency control board, the network circuit board and the capacitor circuit board are provided with relatively independent installation spaces, electromagnetic interference among elements is reduced, and the electromagnetic shielding isolation effect in the shell is improved.
Drawings
Fig. 1 is an external view of a housing according to an embodiment of the present invention.
Fig. 2 is an exploded view of an embodiment of the present invention.
Fig. 3 is a schematic diagram of the heat transfer for operation of an embodiment of the present invention.
Fig. 4 is an enlarged view of a portion a in fig. 3.
Fig. 5 is a schematic diagram of the internal structure of a transceiver according to an embodiment of the present invention.
Reference numerals: a housing 1 of the compact antenna tuner; a metal separator 11; a radio frequency control board 2; a network circuit board 3; an inductor 31; a capacitive circuit board 4; a heat conductive spacer 5; a heat dissipation framework 6; a mounting groove 7; and (7) heat-conducting silica gel 8.
Detailed Description
The drawings are only for purposes of illustration and are not to be construed as limiting the utility model. For a better understanding of the following embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
Example 1
As shown in fig. 1 to 4, the present embodiment provides a small antenna tuner, which includes a housing 1, a radio frequency control board 2, a network circuit board 3, and a capacitor circuit board 4; the network circuit board 3 is provided with an inductor 31; also includes a metal separator 11; the metal partition plate 11 is arranged in the shell 1 and connected with the shell 1, and divides the shell 1 into two cavities; the two cavities are a first cavity and a second cavity; the radio frequency control board 2 is arranged in the first cavity; the network circuit board 3 and the capacitor circuit board 4 are respectively arranged on two side surfaces of the metal partition plate 11, are respectively arranged in the first cavity and the second cavity, and conduct self heat to the shell 1 through the metal partition plate 11.
The main function of the capacitive circuit board 4 is to provide capacitive network tuning parameters when the antenna tuner is in operation, on which a plurality of capacitors are integrated; the network circuit board 3 has the main function of providing inductive network tuning parameters when the antenna tuner works, and an inductor is arranged on the inductive network tuning parameters; the radio frequency control board 2 mainly functions to complete processing of detection signals and control of harmonic parameters of the network circuit board 3 and the capacitor circuit board 4. The metal partition 11 is used as a partition line to divide the interior of the housing 1 of the small antenna tuner into two relatively independent cavities, thereby reducing electromagnetic interference between elements of the two cavities. Radio frequency control panel 2, network circuit board 3 and capacitor circuit board 4 distribute in proper order in casing 1, the great network circuit board 3 of operation heat and capacitor circuit board 4 locate the both sides face of metal partition 11 respectively, heat accessible metal partition 11 conducts to casing 1 and then outside heat dissipation, combine network circuit board 3 and capacitor circuit board 4 self to the natural convection heat dissipation mode of surrounding air heat dissipation, effectively improve the radiating efficiency of the higher component of operation heat, avoid producing the too high phenomenon of local temperature during the operation. On the other hand, the radio frequency cables between the circuit boards are simple in connection and short in distance due to the distribution sequence of the radio frequency control board 2, the network circuit board 3 and the capacitance circuit board 4, and the weight of the cables is reduced. The utility model overcomes the key problems of electromagnetic interference and heat dissipation in the miniaturization of the antenna tuner by the technical means of arranging the metal partition plate 11 and reasonably arranging elements, improves the reliability of the antenna tuner, enables the antenna tuner to adapt to the installation environment with small space and poor heat dissipation condition, and further enables the antenna tuner to effectively adapt to the installation of a carrier.
Preferably, in the present embodiment, a layer of heat conducting spacer 5 is disposed between the network circuit board 3 and the metal partition 11; the thermally conductive spacer 5 is made of a composite thermally conductive material.
The network circuit board 3 integrates a plurality of components with large operation heat, such as the inductor 31, and the like, and the heat productivity is higher compared with the radio frequency control board 2 and the capacitance circuit board 4, so that a heat conduction spacer 5 made of composite heat conduction material is additionally arranged between the network circuit board 3 and the metal partition board 11. The edge of the heat-conducting spacer 5 can be arranged to be connected with the housing 1, and the network circuit board 3 conducts heat simultaneously through the metal partition 11 and the heat-conducting spacer 5; the edge of the heat-conducting spacer 5 can also be arranged not to be connected with the shell 1, and is suspended in the first cavity, and the heat of the network circuit board 3 is conducted from the heat-conducting spacer 5 to the metal spacer 11 through the clamping fixation of the metal spacer 11 and the network circuit board 3.
Specifically, the heat conducting spacer 5 of the present embodiment is made of a composite ceramic material, and has high heat conductivity, excellent high temperature resistance, excellent mechanical properties, and relatively light weight.
Preferably, in the present embodiment, the heat dissipation frame 6 is further included; the heat dissipation framework 6 is connected with the network circuit board 3; inductor 31 is a wound inductor; the winding of the wire-wound inductor 31 is wound on the heat-dissipating bobbin 6.
The winding is the main source of generating heat of wire winding inductor 31, connects winding and casing 1 through heat dissipation skeleton 6, can effectively improve wire winding inductor 31's radiating efficiency to make the winding accomodate in first cavity regularly.
Specifically, the heat dissipation framework 6 of the present embodiment is cylindrical, and the cylinder wall is provided with a hollow part; one end face of the heat dissipation framework 6 is connected with the network circuit board 3, and the other end face is attached to the side face of the shell opposite to the network circuit board 3.
The cylindrical heat dissipation framework 6 penetrates through the first cavity, so that the winding wound on the cylindrical heat dissipation framework has the maximum dispersion degree, the winding is in close contact with the outer wall of the heat dissipation framework 6, the heat conductivity is improved, and the space between the metal partition plate 11 and the side face of the shell 1 is fully utilized.
It should be noted that, in other embodiments, because the size of the inductor 31 is small, it is not necessary to provide the heat dissipation framework 6 with an excessively long length, and the operation heat of the winding is conducted to the heat dissipation framework 6 for natural convection, so that the heat dissipation efficiency of the inductor 31 can be improved as well. The shape of the heat dissipation framework 6 and whether the heat dissipation framework 6 is hollowed out are not limited in other embodiments, and can be adjusted according to implementation requirements.
Preferably, in the present embodiment, the side of the housing 1 opposite to the network circuit board 3 is divided in half into a first area and a second area; the first area is provided with a mounting groove 7 which is sunken into the first cavity; the second area is provided with hollows; the radio frequency control board 2 is arranged in the mounting groove 7.
An independent mounting groove 7 of the radio frequency control board 2 is further divided in the first cavity, so that the radio frequency control board 2, the network circuit board 3 and the capacitor circuit board 4 are provided with relatively independent mounting spaces, electromagnetic interference among elements is reduced, and the electromagnetic shielding isolation effect in the shell 1 is improved. The cross sectional area of the radio frequency control board 2 is smaller than that of the network circuit board 3 and the capacitor circuit board 4, and a hollowed part still exists after the side surface of the shell 1 is provided with the mounting groove 7, and the hollowed part is used for enlarging the heat dissipation area of natural convection and improving the heat dissipation efficiency.
Preferably, in the present embodiment, the inductor 31 is distributed on a portion of the network circuit board opposite to the second area and near to the bottom of the housing 1.
By adjusting the arrangement of the elements on the network circuit board 3, the inductor 31 with large operation heat is distributed at the position opposite to the second area and close to the hollow of the second area, so as to form a superior natural heat dissipation channel. On the other hand, the inductor 31, which includes the winding and/or the heat-dissipating skeleton 6, is heavy and should be disposed near the bottom of the housing 1 to keep the center of gravity of the housing 1 balanced.
Preferably, in this embodiment, a heat conductive silicone gel 8 is disposed between the network circuit board 3 and the metal partition 11, and/or a heat conductive silicone gel 8 is disposed between the capacitor circuit board 4 and the metal partition 11.
The heat conductivity of the heat conduction silica gel 8 is large, the property is stable, certain viscosity is achieved, the fit degree of the circuit board and the metal partition plate 11 is improved between the circuit board and the metal partition plate 11, and heat conduction is enhanced.
Preferably, in the present embodiment, the heat conducting spacer 5 is provided with hollows.
Preferably, in the present embodiment, positioning holes are provided at four corners of the network circuit board 3 and the capacitor circuit board 4.
As shown in fig. 3 and 4, the operating heat of the circuit board is conducted to the metal partition 11 and the filling layer (the heat-conducting silica gel 8 and the heat-conducting spacer 5) and then conducted to the housing 1, and the housing 1 discharges the heat to the outside through natural convection; the operation heat of part of the components is radiated to the air in the shell 1, is brought to the shell 1, the metal partition plate 11 and the filling layer by the air, and then is discharged to the outside through the shell 1 by natural convection.
The shell 1 and the metal partition plate 11 of the embodiment are made of aluminum alloy, and have a good electromagnetic isolation effect; meanwhile, the aluminum alloy is light in weight, the light heat conduction material is selected, multiple hollow parts are additionally arranged, and the cable is simplified, so that the overall weight of the antenna tuner is greatly reduced, and the antenna tuner is suitable for installation environments such as airplane cabins and the like which have severe requirements on importance.
As shown in fig. 5, the present embodiment also provides a transceiver in which an antenna tuner is embedded, the antenna tuner being a small antenna tuner as described above.
The antenna tuner is installed inside the body of the transceiver, and because the volume of the transceiver is limited, a heat dissipation means such as a heat dissipation fan for forcing convection cannot be used, the volume of the antenna tuner needs to be adapted to the volume of the transceiver, and the antenna tuner has excellent heat dissipation performance. After the antenna tuner is installed in the body of the transceiver, the installation positions of the two devices do not need to be reserved independently, and the transceiver and the antenna tuner are integrated into a complete communication module for adjusting the antenna power amplifier.
It should be understood that the above-mentioned embodiments of the present invention are only examples for clearly illustrating the technical solutions of the present invention, and are not intended to limit the specific embodiments of the present invention. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention claims should be included in the protection scope of the present invention claims.
Claims (10)
1. A small-sized antenna tuner comprises a shell, a radio frequency control board, a network circuit board and a capacitance circuit board; it is characterized in that the preparation method is characterized in that,
also includes a metal separator;
the metal partition plate is arranged in the shell and connected with the shell to divide the shell into two cavities;
the two cavities are a first cavity and a second cavity;
the radio frequency control board is arranged in the first cavity;
the network circuit board and the capacitor circuit board are respectively arranged on two side faces of the metal partition plate and are respectively arranged in the first cavity and the second cavity.
2. The compact antenna tuner of claim 1,
a layer of heat-conducting spacer is arranged between the network circuit board and the metal partition plate;
the heat conducting spacer is made of composite heat conducting material.
3. The compact antenna tuner of claim 1,
the heat dissipation framework is also included;
the heat dissipation framework is connected with the network circuit board;
the inductor of the network circuit board is a winding inductor;
and the winding of the winding inductor is wound on the heat dissipation framework.
4. A compact antenna tuner as claimed in claim 3,
the heat dissipation framework is cylindrical, and the cylinder wall is provided with a hollow part;
one end face of the heat dissipation framework is connected with the network circuit board, and the other end face of the heat dissipation framework is attached to the side face of the shell opposite to the network circuit board.
5. The compact antenna tuner of claim 1,
the side surface of the shell opposite to the network circuit board is divided into a first area and a second area in half;
the first region is provided with a mounting groove which is sunken into the first cavity;
the second area is provided with a hollow part;
the radio frequency control board is arranged in the mounting groove.
6. A compact antenna tuner as claimed in claim 5,
and the inductor of the network circuit board is distributed on the part of the network circuit board, which is opposite to the second area and is close to the bottom of the first cavity.
7. The compact antenna tuner of claim 1,
the network circuit board with be equipped with heat conduction silica gel between the metal partition, and/or, the capacitance circuit board with be equipped with heat conduction silica gel between the metal partition.
8. A compact antenna tuner as claimed in claim 2,
the heat conduction spacer is provided with a hollow part.
9. A compact antenna tuner as claimed in any one of claims 1 to 8,
and positioning holes are formed at four corners of the network circuit board and the capacitor circuit board.
10. A transceiver, characterized in that,
an embedded antenna tuner;
the antenna tuner is a compact antenna tuner as claimed in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121811876.6U CN215771567U (en) | 2021-08-04 | 2021-08-04 | Small antenna tuner and transceiver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121811876.6U CN215771567U (en) | 2021-08-04 | 2021-08-04 | Small antenna tuner and transceiver |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215771567U true CN215771567U (en) | 2022-02-08 |
Family
ID=80072251
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121811876.6U Active CN215771567U (en) | 2021-08-04 | 2021-08-04 | Small antenna tuner and transceiver |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215771567U (en) |
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2021
- 2021-08-04 CN CN202121811876.6U patent/CN215771567U/en active Active
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