CN114204956A - Miniaturized multifrequency section communication all-in-one - Google Patents
Miniaturized multifrequency section communication all-in-one Download PDFInfo
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- CN114204956A CN114204956A CN202111492968.7A CN202111492968A CN114204956A CN 114204956 A CN114204956 A CN 114204956A CN 202111492968 A CN202111492968 A CN 202111492968A CN 114204956 A CN114204956 A CN 114204956A
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- local oscillator
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/40—Circuits
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
The invention discloses a miniaturized multi-band communication all-in-one machine, which comprises an upper shell and a lower shell which are connected in a matching way, wherein a control interface is arranged on the side wall of the upper shell, a control circuit board electrically connected with the control interface is arranged in the upper shell, a plurality of independent local oscillator signal cavities are arranged in the upper shell and used for arranging the local oscillator circuit board electrically connected with the control circuit board, an intermediate frequency circuit cavity and a power supply cavity are arranged in the lower shell, the intermediate frequency circuit cavity is used for arranging an intermediate frequency circuit, the power supply cavity is used for arranging a power supply circuit, the lower shell also comprises a radio frequency receiving channel and a radio frequency transmitting channel, a radio frequency receiving circuit is arranged in the radio frequency receiving channel, a radio frequency transmitting circuit is arranged in the radio frequency transmitting channel, and the radio frequency receiving circuit and the radio frequency transmitting circuit are electrically connected with the local oscillator circuit board. The miniaturized multi-band communication all-in-one machine realizes miniaturization, has simple and concise interface design, can perform multi-band communication operation, has higher integration, sensitive signal receiving and sending and high isolation.
Description
Technical Field
The invention belongs to the field of communication, and particularly relates to a miniaturized multi-band communication all-in-one machine.
Background
Most bulky, the weight of the structure body of current antenna communication is heavy, and it is inconvenient to carry the transportation, and the interface design of communication structure optimizes succinctly inadequately, and is too redundant, can't carry out the antenna signal operation on a plurality of frequency channels, and integrated integration degree is lower, and signal reception sensitivity is lower simultaneously.
Therefore, how to optimize the interface design of the antenna communication structure while achieving miniaturization of the antenna communication structure, and improve the degree of integration is a technical problem to be solved by those skilled in the art.
Disclosure of Invention
The invention mainly solves the technical problem of providing a miniaturized multi-band communication all-in-one machine, and solves the problems that a communication structure body in the prior art is large in size, too redundant in interface, low in integration degree and incapable of realizing multi-band communication.
In order to solve the technical problems, the technical scheme adopted by the invention is to provide a miniaturized multi-band communication all-in-one machine, which comprises an upper shell and a lower shell which are connected in a matching way from top to bottom, wherein a control interface is arranged on the side wall of the upper shell, a control circuit board electrically connected with the control interface is arranged in the upper shell, a plurality of independent local oscillation signal cavities are arranged in the upper shell, the local oscillation signal cavities are used for arranging the local oscillation circuit board electrically connected with the control circuit board, the lower shell is provided with an intermediate frequency circuit cavity and a power supply cavity, the intermediate frequency circuit cavity is used for arranging an intermediate frequency circuit, the power supply cavity is used for arranging a power supply circuit, the lower shell is also provided with a radio frequency receiving channel and a radio frequency transmitting channel, a radio frequency receiving circuit is arranged in the radio frequency receiving channel, a radio frequency transmitting circuit is arranged in the radio frequency transmitting channel, and the radio frequency receiving circuit and the radio frequency transmitting circuit are electrically connected with the local oscillation circuit board.
Preferably, the upper shell comprises a local oscillator cavity and a control cavity which are isolated from each other, a metal isolation plate is arranged between the local oscillator cavity and the control cavity, the local oscillator signal cavities are located in the local oscillator cavities, each local oscillator signal cavity is separated from the other local oscillator signal cavity by a metal isolation wall, the control circuit board is located in the control cavity, the lower shell is provided with an intermediate frequency cavity and a radio frequency cavity which are separated from each other, the intermediate frequency circuit cavity and the power supply cavity are located in the intermediate frequency cavity, and the radio frequency receiving channel and the radio frequency transmitting channel are located in the radio frequency cavity.
Preferably, the control circuit board and the local oscillator circuit board are electrically connected through a through interface, and the through interface penetrates through the metal isolation plate.
Preferably, the number of the local oscillator signal cavities is four, the number of the radio frequency receiving channels is one, the number of the radio frequency transmitting channels is three, the radio frequency cavity further comprises a power supply cavity, and a power supply circuit used for supplying power to the radio frequency receiving circuit and the radio frequency transmitting circuit is arranged in the power supply cavity.
Preferably, run through the interface and include metal connecting core and insulating layer, many metal connecting cores mutual independence and set up in line, and the metal connecting core is vertical to be passed the insulating layer, and insulating layer and metal connecting core are insulating each other.
Preferably, the inside of intermediate frequency cavity is provided with the detachable kickboard, and the metal division wall on the kickboard separates the kickboard for the intermediate frequency circuit chamber, offers the breach that is used for the intercommunication power supply chamber in the kickboard near one side in power supply chamber, and the position that the lateral wall of casing was pressed close to down to the metal division wall is provided with the joint hole, is provided with intermediate frequency output joint on the lateral wall of casing down, and intermediate frequency circuit connects intermediate frequency output joint through the joint hole electricity.
Preferably, the radio frequency receiving channel and the radio frequency transmitting channel are linear channels which are parallel to each other and have intervals, the radio frequency receiving channel is provided with a local oscillator receiving end and a radio frequency receiving end, the side wall of the lower shell is provided with a receiving connector, and the receiving connector is electrically connected with the radio frequency receiving end; the radio frequency transmitting channel is provided with a local oscillator receiving end and a radio frequency output end, an output end head is arranged on the side wall of the lower shell, the output end head is electrically connected with the radio frequency output end, and the local oscillator receiving end of the radio frequency receiving channel and the local oscillator receiving end of the radio frequency transmitting channel are used for receiving local oscillator signals.
Preferably, the radio frequency receiving channel and the radio frequency transmitting channel are provided with a frequency doubling region, a frequency mixing region, a filtering region, an amplifying region and an isolation region, and the side walls of the radio frequency receiving channel and the radio frequency transmitting channel are provided with power channel ports for electrically connecting with a power circuit.
Preferably, a plurality of vertical grooves and isolation gates are arranged on the radio frequency receiving channel and the radio frequency transmitting channel, the isolation gates are used for isolating the frequency doubling region, the frequency mixing region, the filtering region, the amplifying region and the isolation region, the vertical grooves are used for being embedded into the isolation gates, and circuit passing ports are formed in the bottoms of the isolation gates.
Preferably, the intermediate frequency cavity and the radio frequency cavity are separated by a metal isolation layer, an intermediate frequency connection cavity extends from the side wall of the radio frequency receiving channel, an intermediate frequency connection joint penetrating through the metal isolation layer is arranged in the intermediate frequency connection cavity, the intermediate frequency circuit and the radio frequency receiving circuit are electrically connected through the intermediate frequency connection joint, a baseband connection cavity extends from the side wall of the radio frequency transmitting channel, a baseband connection joint penetrating through the metal isolation layer is arranged in the baseband connection cavity, a baseband port is arranged on the side wall of the lower shell, and the baseband port is electrically connected with the radio frequency transmitting circuit through the baseband connection joint.
The invention has the beneficial effects that: the invention discloses a miniaturized multi-band communication all-in-one machine, which comprises an upper shell and a lower shell which are connected in a matching way, wherein a control interface is arranged on the side wall of the upper shell, a control circuit board electrically connected with the control interface is arranged in the upper shell, a plurality of independent local oscillator signal cavities are arranged in the upper shell and used for arranging the local oscillator circuit board electrically connected with the control circuit board, an intermediate frequency circuit cavity and a power supply cavity are arranged in the lower shell, the intermediate frequency circuit cavity is used for arranging an intermediate frequency circuit, the power supply cavity is used for arranging a power supply circuit, the lower shell also comprises a radio frequency receiving channel and a radio frequency transmitting channel, a radio frequency receiving circuit is arranged in the radio frequency receiving channel, a radio frequency transmitting circuit is arranged in the radio frequency transmitting channel, and the radio frequency receiving circuit and the radio frequency transmitting circuit are electrically connected with the local oscillator circuit board. The miniaturized multi-band communication all-in-one machine realizes miniaturization, has simple and concise interface design, can perform multi-band communication operation, has higher integration, sensitive signal receiving and sending and high isolation.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of a miniaturized multi-band communication all-in-one machine of the present invention;
FIG. 2 is an exploded schematic view of the embodiment of FIG. 1;
FIG. 3 is an exploded view of the upper housing of another embodiment of the miniaturized multi-band all-in-one machine for communication of the present invention;
FIG. 4 is a schematic view of the control chamber of the embodiment of FIG. 3;
FIG. 5 is an exploded view of the lower housing of another embodiment of the miniaturized multi-band all-in-one machine for communication of the present invention;
FIG. 6 is a further exploded view of the embodiment of FIG. 5;
FIG. 7 is a schematic view of the RF cavity of the embodiment of FIG. 5;
FIG. 8 is a schematic view of a pass-through interface in another embodiment of the miniaturized multi-band all-in-one machine of the present invention;
FIG. 9 is an exploded view of a local oscillator connector in another embodiment of the miniaturized multi-band communication all-in-one machine of the present invention;
FIG. 10 is a schematic structural diagram of a Ku band RF transmission channel in another embodiment of the miniaturized multiband integrated communication machine of the present invention;
FIG. 11 is an enlarged partial view of part A of the embodiment shown in FIG. 7;
FIG. 12 is a schematic view of a channel isolation cover plate in another embodiment of the miniaturized multi-band communication all-in-one machine of the present invention;
FIG. 13 is a schematic diagram of a control interface in another embodiment of the miniaturized multi-band communication all-in-one machine of the present invention.
Detailed Description
In order to facilitate an understanding of the invention, the invention is described in more detail below with reference to the accompanying drawings and specific examples. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It is to be noted that, unless defined otherwise, all 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. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
With reference to fig. 1-7, the miniaturized multi-band communication all-in-one machine comprises an upper casing 1 and a lower casing 2 which are connected in a vertical matching manner, so as to realize rapid assembly and disassembly, a control interface T1 is arranged on the side wall of the upper casing 1, a control circuit board (not shown) electrically connected with the control interface T1 is arranged inside the upper casing 1, a plurality of independent local oscillation signal cavities 3 are arranged in the upper casing 1, the local oscillation signal cavities 3 are used for arranging the local oscillation circuit board (not shown) electrically connected with the control circuit board, the lower casing 2 is provided with an intermediate frequency circuit cavity 4 and a power supply cavity 5, the intermediate frequency circuit cavity 4 is used for arranging an intermediate frequency circuit, the power supply cavity 5 is used for arranging a power supply circuit, the lower casing 2 is further provided with a radio frequency receiving channel 6 and a radio frequency transmitting channel 7, a radio frequency receiving circuit is arranged in the radio frequency receiving channel 6, a radio frequency transmitting circuit is arranged in the radio frequency transmitting channel 7, the radio frequency receiving circuit and the radio frequency transmitting circuit are electrically connected with the local oscillation circuit board, the layering arrangement mode not only realizes miniaturization, but also enhances the integration degree, and can work in multi-band communication.
Preferably, the miniaturized multi-band all-in-one communication machine has the size of 80 multiplied by 60 multiplied by 24mm3Small volume, light weight and meets the miniaturization requirement.
Preferably, go up casing 1 including the local oscillator cavity and the control cavity of mutual isolation, be provided with metal division board 11 between local oscillator cavity and the control cavity, the reinforcing isolation, a plurality of local oscillator signal chambeies 3 are located the local oscillator cavity, and separate by metal division wall 31 between each local oscillator signal chamber 3, further strengthen each other's isolation, make shielding performance good, control circuit board is located the control cavity, casing 2 has intermediate frequency cavity 21 and the radio frequency cavity 22 that form of mutual separation down, intermediate frequency circuit chamber 4 and power supply chamber 5 are located intermediate frequency cavity 21, radio frequency receiving channel 6 and radio frequency transmission channel 7 are located radio frequency cavity 22, space utilization is strengthened in the layering setting, the later stage of also being convenient for simultaneously is dismantled and is maintained.
The local oscillator cavity is divided into a plurality of independent local oscillator signal cavities 3 by the metal partition walls 31, so that energy radiation among the cavities is isolated, interference among signals is reduced, and electromagnetic compatibility is improved.
Preferably, the inside of the upper casing 1 is provided with the crystal oscillator 13, which corresponds to the crystal oscillator 13, the inside of the lower casing 2 is provided with a crystal oscillator cavity 26 for accommodating the crystal oscillator 13, specifically, the crystal oscillator 13 is arranged in the control cavity, the crystal oscillator cavity 26 is arranged in the intermediate frequency cavity 21, the shape of the crystal oscillator cavity 26 is matched with the shape of the crystal oscillator 13, the crystal oscillator cavity 26 is a groove, when the upper casing 1 and the lower casing 2 are connected in an up-down matching manner, a part of the crystal oscillator 13 is located in the control cavity, another part is located in the intermediate frequency cavity 21, it is avoided that one of the upper casing 1 and the lower casing 2 completely accommodates the crystal oscillator 13, the thickness of the whole casing is reduced, miniaturization is realized, and meanwhile, the arrangement also can be beneficial to rapid alignment of the upper casing 1 and the lower casing 2 with the crystal oscillator 13 as an alignment point when the upper casing and the lower casing 2 are connected in an up-down matching manner.
Preferably, the control circuit board and the local oscillator circuit board are electrically connected through a through interface 8, so that a reference source signal is input to the local oscillator circuit board and a control signal is input to the local oscillator circuit board, so that the local oscillator circuit board generates a local oscillator signal, and the through interface 8 penetrates through the metal isolation plate 11.
Preferably, the number of the local oscillator signal cavities 3 is four, the number of the radio frequency receiving channels 6 is one, the number of the radio frequency transmitting channels 7 is three, and the radio frequency cavity 22 further comprises a power supply cavity, wherein a power supply circuit for supplying power to the radio frequency receiving circuit and the radio frequency transmitting circuit is arranged in the power supply cavity.
Further preferred, local oscillator signal chamber 3 includes first chamber, second chamber, third chamber and fourth chamber, and the rectangle of first chamber for lacking the one corner, the second chamber is the L type, and first chamber and second chamber are adjacent, and the third chamber is the notch cuttype, and the fourth chamber is the notch cuttype complementary with the third chamber, and fourth chamber and third chamber are next-door neighbour, and third chamber and second chamber are next-door neighbour.
Preferably, referring to fig. 8 again, the penetration interface 8 includes a metal connecting core 81 and an insulating layer 82, the metal connecting cores 81 are independent from each other and are arranged in a row, the metal connecting core 81 vertically penetrates through the insulating layer 82, the insulating layer 82 is insulated from the metal connecting core 81, wiring is reduced, and the power supply circuit on the upper layer of the upper housing 1 and the power supply circuit on the lower layer of the upper housing 1 are directly communicated.
The penetration interfaces 8 are all arranged close to the metal partition wall 31, so that the circuit board can be placed conveniently, unnecessary holes of the circuit board are reduced, the arrangement of wires on the circuit board is facilitated, and the holes and the wires are simplified.
Preferably, a local oscillation connector B1 which penetrates through the metal isolation plate 11 and is electrically connected with the local oscillation circuit board is further arranged in the upper shell 1, the local oscillation circuit board is matched with the local oscillation signal cavity 3, a connection core connection hole which is electrically connected with the metal connection core 81 in a one-to-one correspondence manner is formed in the local oscillation circuit board, a connection hole which is electrically connected with the local oscillation connector B1 is formed in the local oscillation circuit board, and the position of the connection hole corresponds to the position of the local oscillation connector B1.
Preferably, the control circuit board is adapted to the control cavity, an interface hole electrically connected with a wiring terminal of the control interface T1 is formed in the control circuit board, a connection core connection hole electrically connected with the metal connection core 81 in a one-to-one correspondence is formed in the control circuit board, a via hole for the local oscillator connector B1 to pass through is formed in the control circuit board, the position of the via hole corresponds to the position of the local oscillator connector B1, a through hole for accommodating the crystal oscillator body 13 is further formed in the control circuit board, and the shape of the through hole is adapted to the shape of the crystal oscillator body 13 and the positions of the through hole correspond to each other.
Preferably, the local oscillator circuit board comprises a phase-locked area and an amplification area, the phase-locked area is provided with a phase-locked module, the amplification area is provided with a low-noise amplification module and a power supply module, the phase-locked module is electrically connected with the penetration interface and the low-noise amplification module, and the low-noise amplification module is electrically connected with the power supply module.
Preferably, the control circuit board comprises a reference source circuit area, a control area and an interface area, the interface area is provided with an interface module electrically connected with the control interface, the reference source circuit area is provided with a power module, a shunt module and an amplification module, the control area is provided with a single chip microcomputer, a control switch module and a voltage conversion module, the control switch module is electrically connected with the single chip microcomputer and the voltage conversion module, and the shunt module is electrically connected with the amplification module and the penetration interface.
Preferably, a plurality of mounting lugs a1 are arranged on the outer side of the upper shell 1 or/and the lower shell 2, and mounting holes are formed in the mounting lugs a1, so that the shells can be fastened or fixed by using the mounting holes, and can be lifted up by the mounting lugs, thereby facilitating the position movement of the shells.
Preferably, the inside of intermediate frequency cavity 21 is provided with detachable recess plate 10, metal barrier wall 101 on the recess plate 10 separates recess plate 10 for intermediate frequency circuit chamber 4, offer the breach 102 that is used for communicateing power supply chamber 5 in one side that recess plate 10 is close to power supply chamber 5, the position that metal barrier wall 101 pressed close to the lateral wall of casing 2 down is provided with joint hole K1, be provided with intermediate frequency output joint K2 on the lateral wall of casing 2 down, intermediate frequency circuit passes through joint hole K1 and electrically connects intermediate frequency output joint K2.
Preferably, the metal partition wall 101 extends in the if circuit chamber 4, and divides the if circuit chamber 4 into a plurality of cavity regions that are communicated with each other, each cavity region includes a first cavity region 41, a second cavity region 42, a third cavity region 43, a fourth cavity region 44 and a fifth cavity region 45, the arrangement form of the cavity regions enables the if circuit to be divided into the plurality of regions, so that the electromagnetic radiation influence between the regions is reduced, and the arrangement of the metal partition wall 101 isolates the energy radiation in the if circuit chamber 4 on the one hand, reduces the interference between signals, and improves the electromagnetic compatibility, and on the other hand, because the metal partition wall 101 is matched with the circuit board shape in the if circuit chamber 4, the metal partition wall can better cooperate with the circuit board, limit the displacement of the circuit board in the horizontal direction, and enhance the stability of the circuit board.
Preferably, the radio frequency receiving channel 6 and the radio frequency transmitting channel 7 are linear channels which are parallel to each other and have intervals, the radio frequency receiving channel 6 has a local oscillator receiving terminal 61 and a radio frequency receiving terminal 62, the local oscillator receiving terminal 61 is far away from the side wall of the lower shell 2 and is used for receiving local oscillator signals, the radio frequency receiving terminal 62 is close to the side wall of the lower shell 2, the side wall of the lower shell 2 is provided with a receiving connector T2, and the receiving connector T2 is electrically connected with the radio frequency receiving terminal 62; the radio frequency transmitting channel 7 is provided with a local oscillator receiving end 71 and a radio frequency output end 72, the local oscillator receiving end 72 is far away from the side wall of the lower shell 2 and is used for receiving local oscillator signals, the radio frequency output end 72 is close to the side wall of the lower shell 2, the side wall of the lower shell 2 is provided with an output end T3, the output end T3 is electrically connected with the radio frequency output end 72, the local oscillator receiving end 61 of the radio frequency receiving channel 6 and the local oscillator receiving end 71 of the radio frequency transmitting channel 7 are used for receiving the local oscillator signals, a receiving connector T2 and an output end T3 are respectively oppositely arranged on the two side walls of the lower shell 2 and are arranged in order, the connector classification is simple and clear, and convenience is provided for quick identification and use of the connectors.
Preferably, the intermediate frequency cavity 21 and the radio frequency cavity 22 are separated by a metal isolation layer 12, so as to enhance isolation.
Preferably, referring to fig. 9 again, a local oscillation connector B1 penetrating through the metal isolation layer 12 is disposed in the local oscillation receiving terminal 61, the local oscillation connector B1 includes a connector B11 and a connecting cap B12, the connector B11 includes a connecting inner core B111 and a connecting outer sleeve B112 sleeved on the connecting inner core B111, the connecting cap B12 is respectively sleeved on the top end and the bottom end of the connecting outer sleeve B112, the connecting cap B12 has an inner cavity, a connecting pin B13 for inserting the connecting inner core B111 is disposed in the inner cavity, and a connecting pin B13 is also disposed outside the connecting cap B12.
Further preferably, the outer surface of the connection core B111 is further sleeved with an insulating layer B14, and the insulating layer B14 insulates the connection core B111 from the connection outer sleeve B112, so as to prevent the connection core B111 from being conducted with devices other than the connection pin B13.
More preferably, the connecting outer sleeve B112 is provided with a vertical groove B1121.
Preferably, the radio frequency receiving channel 6 and the radio frequency transmitting channel 7 are provided with a frequency doubling region, a frequency mixing region, a filtering region, an amplifying region and an isolation region, and the side walls of the radio frequency receiving channel 6 and the radio frequency transmitting channel 7 are provided with a power channel port D1 for electrically connecting with a power circuit.
Further preferably, the rf receiving channel 6 is a Ka band rf receiving channel, and includes a frequency doubling region, a frequency mixing region, a filtering region, an amplifying region, and an isolation region arranged in sequence from the local oscillator receiving terminal 61 to the rf receiving terminal 62, a frequency doubling chip HMC578 arranged in the frequency doubling region, a frequency mixing chip HMC524 arranged in the frequency mixing region, a filtering chip SiMF30R25/1R8-7W2 arranged in the filtering region, a low noise amplifying chip CHA 9 and an amplifying chip CGY2128UH/C1 arranged in sequence in the amplifying region, an isolator WG2802a1 arranged in the isolation region, the amplifying chip CGY2128UH/C1 connected to the isolator WG2802a1 through a high impedance line, the isolator WG2802a1 connected to the receiving connector T206 2 through a high impedance line, and a power channel D1 arranged on a sidewall of the Ka band rf receiving channel for electrically connecting to a power circuit.
Preferably, referring to fig. 10 again, the radio frequency transmitting channel 7 includes a Ku-band radio frequency transmitting channel 73, a Ka-band radio frequency transmitting channel 74 and an X-band radio frequency transmitting channel 75, each radio frequency transmitting channel has a local oscillator receiving terminal 71 and a radio frequency output terminal 72, the local oscillator receiving terminal 71 of the Ku-band radio frequency transmitting channel 73 to the radio frequency output terminal 72 thereof includes an amplifying region P1, a mixing region P2, a filtering region P3, a secondary amplifying region P4 and an isolation region P5, a driving amplifying chip IPA-0414-21 is disposed in the amplifying region P1, a mixing chip NC 171C-912 is disposed in the mixing region P2, a filtering chip SiMF12R5/1-7D3 is disposed in the filtering region P3, a low noise amplifying chip CHA NC 3666 and a gain amplifying chip NC 6619-010 are disposed in the secondary amplifying region P4 in sequence, an isolator WG902a23 is disposed in the isolation region P5, the gain amplification chip NC6619C-010 is electrically connected with an isolator WG902A23 through a high-impedance line, the isolator WG902A23 is electrically connected with an output terminal T3 through a high-impedance line, a power supply channel port D1 used for being electrically connected with a power supply circuit is further formed in the side wall of the Ku frequency band radio frequency transmitting channel 73, and the channel structures of the Ka frequency band radio frequency transmitting channel, the X frequency band radio frequency transmitting channel and the Ka frequency band radio frequency receiving channel are similar to the channel structure of the Ku frequency band radio frequency transmitting channel, and are not described again.
Further preferably, the secondary amplification region P4 further includes a low noise amplification region P41 and a gain amplification region P42, the low noise amplification chip CHA3666 is provided in the low noise amplification region P41, and the gain amplification chip NC6619C-010 is provided in the gain amplification region P42.
Further preferably, the isolation region P5 is a square cavity extending laterally outward along the sidewall of the Ku-band rf transmission channel 73, and the isolator is disposed in the isolation region P5.
Preferably, the local oscillator receiving end of the Ka-band radio frequency transmitting channel to the radio frequency output end thereof comprises a frequency doubling region, a frequency mixing region, a filtering region, an amplifying region and an isolating region which are sequentially arranged, wherein a frequency doubling chip HMC576 is arranged in the frequency doubling region, a frequency mixing chip HMC524 is arranged in the frequency mixing region, a filtering chip SiMS25R6/1R6-4W2 is arranged in the filtering region, a low noise amplifying chip CHA2069 is arranged in the amplifying region, an isolator WG2602A3 is arranged in the isolating region, the isolator WG2602A3 is electrically connected with an output end T3 through a high impedance line, and a power channel port D1 for electrically connecting with a power circuit is further arranged on the side wall of the Ka-band radio frequency transmitting channel.
Preferably, the local oscillator receiving end of the X-band radio frequency transmitting channel to the radio frequency output end thereof comprises an amplifying region, a mixing region, a filtering region, a multi-stage amplifying region and an isolation region which are arranged in sequence, a driving amplification chip IPA-0414-21 is arranged in the amplification area, a frequency mixing chip HMC520 is arranged in the frequency mixing area, a filter chip SiMF8R2/R6-6E3 is arranged in the filter area, an amplifier, a driving amplification chip IPA-0414-21, a gain amplification chip NC6619C-010 and a power amplification chip WFD080120-P39-1 which are sequentially arranged are arranged in the multistage amplification region, an isolator WG902A12 is arranged in the isolation region, the power amplification chip WFD080120-P39-1 is electrically connected with the isolator WG902A12 through a high impedance line, the isolator WG902A12 is electrically connected with an output terminal T3 through a high impedance line, and a power supply channel port D1 used for being electrically connected with a power supply circuit is also formed in the side wall of the X-band radio frequency transmitting channel.
Preferably, the width of the high-resistance line is 0.74 mm.
Preferably, referring to fig. 11, the radio frequency receiving channel 6 and the radio frequency transmitting channel 7 are provided with a plurality of vertical grooves C1 and an isolation gate C2, the isolation gate C2 is used for isolating the frequency doubling region, the frequency mixing region, the filtering region, the amplifying region and the isolation region, the vertical groove C1 is used for the isolation gate C2 to be embedded, and the bottom of the isolation gate C2 is provided with a circuit through port C21.
Further preferably, the transverse width of the circuit passing opening C21 is adapted to the width of the circuit board passing through the circuit passing opening C21 and arranged in the radio frequency receiving channel 6 and the radio frequency transmitting channel 7, on one hand, the circuit can pass through the isolation gate C2 without affecting the normal operation of the circuit, on the other hand, the transverse width of the circuit passing opening C21 is adapted to the width of the circuit board, so that the circuit board can be prevented from swinging in the transverse direction, and meanwhile, the isolation gate C2 is embedded into the vertical groove C1 and can be prevented from moving in the vertical direction, so that the isolation gate C2 can firmly clamp the circuit board in the channel.
The isolation gate C2 isolates each region in the radio frequency receiving channel 6 and the radio frequency transmitting channel 7, so as to ensure the isolation between the regions and ensure that the regions do not influence each other.
Further preferably, the power supply passage port D1 is also provided with an isolation shutter C2.
Preferably, the side wall of the radio frequency receiving channel 6 extends out of the intermediate frequency connection cavity 23, an intermediate frequency connection joint Z1 penetrating through the metal isolation layer 11 is arranged in the intermediate frequency connection cavity 23, the intermediate frequency circuit and the radio frequency receiving circuit are electrically connected through the intermediate frequency connection joint Z1, the side wall of the radio frequency transmitting channel 7 extends out of the baseband connection cavity 24, a baseband connection joint J1 penetrating through the metal isolation layer 11 is arranged in the baseband connection cavity 24, the side wall of the lower housing 2 is provided with a baseband port T4, and the baseband port T4 is electrically connected with the radio frequency transmitting circuit through the baseband connection joint J1.
Preferably, the middle cavity 25 is disposed in the middle frequency cavity 21 and below the recess plate 10, the middle frequency connector Z1 and the baseband connector J1 penetrating through the metal isolation layer 11 are disposed to directly electrically connect the rf receiving circuit of the rf cavity 22 to the middle frequency circuit of the middle frequency cavity 21, and the rf transmitting circuit of the rf cavity 22 to the baseband port T4 for receiving baseband signals, so as to omit unnecessary wiring, reduce the space required by wiring, and be simple and efficient, thereby making the housing tend to be miniaturized.
Preferably, with reference to fig. 12, the radio frequency module further includes a channel isolation cover G1 for covering the radio frequency receiving channel 6 and the radio frequency transmitting channel 7, an upper isolation cover S1 for covering the intermediate frequency cavity 21, and a lower isolation cover S2 for covering the radio frequency cavity 22, where the arrangement of the above isolation covers enhances the shielding performance and radiation resistance of the housing, and shields the influence of external electromagnetic waves on the internal circuit and the outward radiation of electromagnetic waves generated inside.
Preferably, a shielding cover G2 for covering the upper case 1 is further included, and the shielding cover G2 shields the influence of external electromagnetic waves on the internal circuit and the outward radiation of electromagnetic waves generated inside.
Further preferably, the shape of the channel isolation cover plate G1 is matched with the shapes of the radio frequency receiving channel 6 and the radio frequency transmitting channel 7, so that the isolation between the channels is enhanced, and the influence of electromagnetic radiation between the channels is reduced.
Further preferably, the channel isolation cover plate G1 is divided into a radio frequency receiving cover plate G11 and a radio frequency transmitting cover plate G12, the radio frequency receiving cover plate G11 is a single cover plate, the radio frequency transmitting cover plate G12 comprises three Ku frequency band transmitting cover plates G121, Ka frequency band transmitting cover plates G122 and X frequency band transmitting cover plates G123 which are connected together, the three are connected into a whole, the cover plates are convenient to detach, and convenience is brought to later-stage inspection and maintenance.
Preferably, as shown in fig. 13, the control interface T1 has a terminal T11, the terminal T11 is electrically connected to the control circuit board, the control interface T1 further includes an external connection terminal T12 correspondingly connected to the terminal T11, and the external connection terminal T12 is perpendicular to the terminal T11, so as to reduce the occupied area of the control interface T1 in the horizontal direction and meet the miniaturization requirement.
Based on the embodiment, the invention discloses a miniaturized multi-band communication all-in-one machine, which comprises an upper shell and a lower shell which are connected in an up-and-down matching mode, wherein a control interface is arranged on the side wall of the upper shell, a control circuit board electrically connected with the control interface is arranged in the upper shell, a plurality of independent local oscillator signal cavities are formed in the upper shell, the local oscillator signal cavities are used for arranging the local oscillator circuit board electrically connected with the control circuit board, the lower shell is provided with an intermediate frequency circuit cavity and a power supply cavity, the intermediate frequency circuit cavity is used for arranging an intermediate frequency circuit, the power supply cavity is used for arranging a power supply circuit, the lower shell is further provided with a radio frequency receiving channel and a radio frequency transmitting channel, a radio frequency receiving circuit is arranged in the radio frequency receiving channel, a radio frequency transmitting circuit is arranged in the radio frequency transmitting channel, and the radio frequency receiving circuit and the radio frequency transmitting circuit are electrically connected with the local oscillator circuit board. The miniaturized multi-band communication all-in-one machine realizes miniaturization, has simple and concise interface design, can perform multi-band communication operation, has higher integration, sensitive signal receiving and sending and high isolation.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent structural changes made by using the contents of the present specification and the drawings, or applied directly or indirectly to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. A miniaturized multi-band communication all-in-one machine is characterized by comprising an upper shell and a lower shell which are connected in a vertical matching way, the side wall of the upper shell is provided with a control interface, the interior of the upper shell is provided with a control circuit board which is electrically connected with the control interface, the upper shell is internally provided with a plurality of independent local oscillator signal cavities which are used for arranging a local oscillator circuit board electrically connected with the control circuit board, the lower shell is provided with an intermediate frequency circuit cavity and a power supply cavity, the intermediate frequency circuit cavity is used for arranging an intermediate frequency circuit, the power supply cavity is used for arranging a power supply circuit, the lower shell is also provided with a radio frequency receiving channel and a radio frequency transmitting channel, the radio frequency receiving channel is internally provided with a radio frequency receiving circuit, the radio frequency transmitting channel is internally provided with a radio frequency transmitting circuit, and the radio frequency receiving circuit and the radio frequency transmitting circuit are electrically connected with the local oscillator circuit board.
2. The all-in-one miniaturized multiband communication machine according to claim 1, wherein the upper housing comprises a local oscillator cavity and a control cavity isolated from each other, a metal isolation plate is disposed between the local oscillator cavity and the control cavity, a plurality of local oscillator signal cavities are located in the local oscillator cavity, each local oscillator signal cavity is separated by a metal isolation wall, and the control circuit board is located in the control cavity; the lower shell is provided with an intermediate frequency cavity and a radio frequency cavity which are separated from each other, the intermediate frequency circuit cavity and the power supply cavity are located in the intermediate frequency cavity, and the radio frequency receiving channel and the radio frequency transmitting channel are located in the radio frequency cavity.
3. The all-in-one miniaturized multiband communication machine according to claim 2, wherein the control circuit board and the local oscillator circuit board are electrically connected through a through interface, and the through interface penetrates through the metal isolation plate.
4. The all-in-one miniaturized multiband communication machine according to claim 3, wherein the number of the local oscillator signal cavities is four, the number of the radio frequency receiving channels is one, the number of the radio frequency transmitting channels is three, the radio frequency cavity further comprises a power supply cavity, and a power supply circuit for supplying power to the radio frequency receiving circuit and the radio frequency transmitting circuit is arranged in the power supply cavity.
5. The miniaturized multiband communication all-in-one machine according to claim 4, wherein the penetration interface comprises metal connection cores and an insulating layer, the metal connection cores are independent from each other and arranged in a column, the metal connection cores vertically penetrate through the insulating layer, and the insulating layer and the metal connection cores are insulated from each other.
6. The miniaturized multiband communication all-in-one machine according to claim 5, wherein a detachable recess plate is arranged inside the intermediate frequency cavity, the recess plate is divided into the intermediate frequency circuit cavity by a metal partition wall on the recess plate, a notch for communicating the power supply cavity is formed in one side of the recess plate close to the power supply cavity, a connector hole is formed in a position, close to the side wall of the lower shell, of the metal partition wall, a intermediate frequency output connector is arranged on the side wall of the lower shell, and the intermediate frequency circuit is electrically connected with the intermediate frequency output connector through the connector hole.
7. The all-in-one miniaturized multiband communication machine according to claim 6, wherein the RF receiving channel and the RF transmitting channel are linear channels parallel to each other and spaced apart from each other, the RF receiving channel has a local oscillator receiving terminal and an RF receiving terminal, a receiving connector is disposed on a side wall of the lower housing, and the receiving connector is electrically connected to the RF receiving terminal; the radio frequency transmitting channel is provided with a local oscillator receiving end and a radio frequency output end, the side wall of the lower shell is provided with an output end head, the output end head is electrically connected with the radio frequency output end, and the local oscillator receiving end of the radio frequency receiving channel and the local oscillator receiving end of the radio frequency transmitting channel are used for receiving local oscillator signals.
8. The miniaturized multiband communication all-in-one machine according to claim 7, wherein a frequency doubling region, a frequency mixing region, a filtering region, an amplifying region and an isolation region are arranged in the radio frequency receiving channel and the radio frequency transmitting channel, and power channel ports for electrically connecting with the power circuit are formed in side walls of the radio frequency receiving channel and the radio frequency transmitting channel.
9. The miniaturized multiband communication all-in-one machine according to claim 8, wherein a plurality of vertical grooves and isolation gates are arranged on the radio frequency receiving channel and the radio frequency transmitting channel, the isolation gates are used for isolating the frequency doubling region, the frequency mixing region, the filtering region, the amplifying region and the isolation region, the vertical grooves are used for being embedded into the isolation gates, and circuit passing ports are formed in the bottoms of the isolation gates.
10. The miniaturized multiband communication all-in-one machine according to claim 9, wherein the intermediate frequency cavity and the radio frequency cavity are separated by a metal isolation layer, an intermediate frequency connection cavity extends from a side wall of the radio frequency receiving channel, an intermediate frequency connection joint penetrating through the metal isolation layer is arranged in the intermediate frequency connection cavity, the intermediate frequency circuit and the radio frequency receiving circuit are electrically connected through the intermediate frequency connection joint, a baseband connection cavity extends from a side wall of the radio frequency transmitting channel, a baseband connection joint penetrating through the metal isolation layer is arranged in the baseband connection cavity, a baseband port is arranged on a side wall of the lower housing, and the baseband port is electrically connected with the radio frequency transmitting circuit through the baseband connection joint.
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Cited By (1)
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| CN114204956B (en) | 2023-06-16 |
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