CN117650402B - Radio frequency module combination applied to variable-pitch phased array antenna - Google Patents
Radio frequency module combination applied to variable-pitch phased array antenna Download PDFInfo
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- CN117650402B CN117650402B CN202410115003.3A CN202410115003A CN117650402B CN 117650402 B CN117650402 B CN 117650402B CN 202410115003 A CN202410115003 A CN 202410115003A CN 117650402 B CN117650402 B CN 117650402B
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- 238000004804 winding Methods 0.000 claims abstract description 7
- 239000004020 conductor Substances 0.000 claims description 31
- 238000006073 displacement reaction Methods 0.000 claims description 11
- 230000000087 stabilizing effect Effects 0.000 claims description 8
- 239000012212 insulator Substances 0.000 claims description 7
- 238000000034 method Methods 0.000 abstract description 12
- 230000000694 effects Effects 0.000 abstract description 4
- 230000008054 signal transmission Effects 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 5
- 238000005452 bending Methods 0.000 description 3
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000012795 verification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
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Abstract
The invention relates to a radio frequency module combination applied to a variable-pitch phased array antenna, which comprises a frame, wherein the frame is provided with a bottom plate, the bottom plate is provided with a plurality of variable-pitch modules and a lower baffle, the frame is provided with an upper baffle, the upper baffle and the lower baffle form a wire accommodating space, the plurality of variable-pitch modules are all provided with radio frequency joints, a plurality of radio frequency wire harnesses are wound to form a plurality of coils, the coils are arranged in the wire accommodating space, one ends of the plurality of radio frequency wire harnesses are respectively connected with the bottom plate, the other ends of the plurality of radio frequency wire harnesses are respectively and movably connected with the radio frequency joints, and the coils move in the wire accommodating space in a telescopic manner along with the action of the variable-pitch modules; the coil is formed by winding the radio frequency wire harness, and the auxiliary effects of the baffle and the lower baffle are added, so that the radio frequency wire harness can normally work in the telescopic process of the variable-pitch module and in a telescopic state, and is not mutually wound, the connection of long-distance signal transmission can be realized, the good and stable electrical performance under high frequency can be ensured, and the service life of tens of thousands times can be met.
Description
Technical Field
The invention relates to the technical field of antennas, in particular to a radio frequency module combination applied to a variable-distance phased array antenna.
Background
The traditional antenna receiving unit is in a fixed position, namely the receiving unit works at a certain fixed position, the position of the receiving unit cannot be changed once being fixed, along with the development of the market, a more flexible working mode is needed, and a variable-distance phased array antenna is generated, but how to work and even install a radio frequency module combination with the variable-distance phased array antenna under the condition of variable distance is the primary problem.
At present, the radio frequency module combination applied to the variable-spacing antenna module has fewer use scenes and cannot meet 10000 times of long-life requirements, meanwhile, the traditional SMP connector is in direct insertion connection, namely the SMP-J connector and the SMP-K connector are directly inserted, and the SMP-K connector is only suitable for static use after insertion due to the fact that an elastic contact piece of the SMP-K connector is in elastic contact with a shell of the SMP-J connector, and when the SMP-J connector is repeatedly subjected to external force (rotation or dragging), the risk of poor contact exists, so that signal transmission is unstable and even is interrupted; meanwhile, when the space-changing antenna module is in the space-changing process, pulling and bending can occur when the radio-frequency wire harness is improperly placed, and the stability of electric performance transmission cannot be guaranteed.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a radio frequency module combination applied to a variable-distance phased array antenna.
In order to solve the problems in the background art, the invention is realized by the following technical scheme:
The utility model provides a be applied to variable pitch phased array antenna's radio frequency module combination, includes the frame, the frame is equipped with the bottom plate, the bottom plate is equipped with a plurality of displacement modules and lower baffle, the frame is equipped with the overhead gage, the overhead gage with lower baffle forms holds the line space, and a plurality of the displacement module all is equipped with the radio frequency and connects, and a plurality of radio frequency pencil forms a plurality of coils after all winding, and a plurality of the coil is located hold the line space, a plurality of radio frequency pencil one end respectively with the bottom plate is connected, a plurality of the radio frequency pencil other end respectively with radio frequency connects swing joint, a plurality of the coil is along with the action of displacement module is in hold the flexible removal in the line space.
Further, the bottom plate upper end is equipped with the lead screw, the lead screw includes the motor, the lead screw both sides are equipped with the slide rail, lead screw and slide rail all are equipped with a plurality of sliders, the displacement module corresponds respectively to be located the slider upper end, motor drive the lead screw action, lead screw control is a plurality of the flexible displacement action of displacement module.
Further, the line containing space comprises an upper line containing space and a lower line containing space; the upper baffle comprises an upper right baffle and an upper left baffle, an upper line containing space is formed between the upper right baffle and the upper left baffle, the lower baffle comprises a lower right baffle and a lower left baffle, a lower line containing space is formed between the lower right baffle and the lower left baffle, the coil is arranged in the upper line containing space along the upper edge, and the coil is arranged in the lower line containing space along the lower edge.
Further, the radio frequency wire harness comprises a radio frequency cable, wherein an SMP connector A and an SMP connector B are respectively arranged at two ends of the radio frequency cable, and the SMP connector A is arranged at the upper end of the bottom plate and fixedly connected with the lower left baffle through a wire clamp; and the SMP connector B is movably connected with the radio frequency connector.
Further, the mode of the winding of the radio frequency wire harness is as follows:
the SMP connector A is arranged at the upper end of the bottom plate and is fixedly connected with the lower left baffle through a wire clamp;
Winding the radio frequency cable to form the coils, wherein the number of turns of the coils is more than or equal to 2, and the coils are not mutually wound to form transverse dislocation, namely the transverse center-to-center spacing between the coils is more than or equal to 30mm;
And movably connecting the SMP connector B with the radio frequency connector.
Further, the device also comprises a longitudinal dislocation area, wherein the longitudinal dislocation area comprises a first longitudinal dislocation area, a second longitudinal dislocation area and a third longitudinal dislocation area; the first longitudinal dislocation area is formed between the SMP connector B and the upper left baffle; the longitudinal space between the coils forms the second longitudinal dislocation area; a third longitudinal displacement zone is formed between the SMP connector a and the lower left baffle.
Further, the first longitudinal dislocation area is less than or equal to 15mm, and the second longitudinal dislocation area and the third longitudinal dislocation area are both less than or equal to 20mm.
Further, the radio frequency cable comprises a multi-core inner conductor, an insulator is wrapped outside the multi-core inner conductor, an inner shielding layer is wrapped outside the insulator, a middle stabilizing layer is wrapped outside the inner shielding layer, an outer conductor is wrapped outside the middle stabilizing layer, a sheath is wrapped outside the outer conductor, and the multi-core inner conductor is a 7-core inner conductor formed by twisting 7 inner conductors.
Further, the SMP connector B comprises a shell and a plug, wherein the end part of the plug is provided with an arc structure, and the inner periphery of the shell is provided with threads; the radio frequency connector periphery all is equipped with the screw thread, be equipped with in the radio frequency connector with circular arc structure complex circular arc groove, the plug inserts in the radio frequency connector, just circular arc structure is located in the circular arc groove, the plug with the radio frequency connector passes through the screw thread that the shell inner periphery set up with the screw thread cooperation that the radio frequency connector periphery set up is connected.
Further, after the SMP connector B is connected with the radio frequency connector, the distance-changing module acts to drive the coil to follow, and the SMP connector B can rotate around the axis of the radio frequency connector.
Compared with the prior art, the invention has the following beneficial technical effects:
1. The structure is simple and convenient, the operability is strong, and the method is suitable for occasions of the variable-pitch phased array antenna;
2. The SMP connector B can rotate and not drop, meanwhile, the radio frequency wire harness is wound to form a coil, and the auxiliary effects of the baffle plate and the lower baffle plate are added, so that the radio frequency wire harness can normally work in the telescopic state of the variable-pitch module and in a telescopic state, and is not mutually wound, the connection of long-distance signal transmission can be realized, the good and stable electrical performance under high frequency can be ensured, and the service life of tens of thousands of times can be met;
3. The longitudinal dislocation area is arranged, so that the space arrangement of the radio frequency wire harness can be facilitated, sufficient space is reserved for reasonable movement of the radio frequency wire harness, the radio frequency cable moves in the wire accommodating space in a certain track in the movement process of the radio frequency wire harness, and the service life requirement of the radio frequency wire harness after multiple movements is ensured;
4. The inner conductor is formed by twisting a plurality of inner conductors, and the multi-core characteristic of the inner conductor can well release stress in the repeated bending process, so that the inner conductor has better stress bearing capacity and longer service life than that of a single-core cable; meanwhile, the radio frequency cable comprises the middle stabilizing layer, has good wrapping property on the inner shielding layer of the radio frequency cable, and can ensure that the structure of the cable shielding layer is kept stable in the process of repeatedly changing the distance of the radio frequency cable, thereby further realizing the stable electrical performance requirement;
5. Because the radio frequency cable can be driven to swing in the repeated pitch-changing work, the radio frequency cable further drives the joint part of the SMP connector B to rotate along with the radio frequency cable, the risk that the opposite-plug engagement part is possibly worn down is caused by repeated rotation, and then the risk of poor contact is possibly caused, the end part of the plug is provided with an arc structure, the contact area is increased, the good contact life of a product in the repeated rotation process is ensured, and the service life can reach 10000 times through test verification.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a diagram of an RF harness setup connection in accordance with the present invention;
FIG. 3 is a block diagram of a radio frequency harness coil in accordance with the present invention;
FIG. 4 is a schematic diagram of the SMP connector B in accordance with the present invention;
FIG. 5 is a schematic view of the RF connector of the present invention;
FIG. 6 is a schematic diagram of the connection of SMP connector B to a radio frequency connector in accordance with the present invention;
Fig. 7 is a schematic diagram of the structure of the multi-core inner conductor in the present invention.
The drawings are marked:
100. A frame; 101. a bottom plate; 102. a lower baffle; 1021. a lower right baffle; 1022. a lower left baffle; 103. an upper baffle; 1031. an upper right baffle; 1032. an upper left baffle; 104. an upper line accommodating space; 105. a lower line accommodating space; 106. a first longitudinal dislocation region; 107. a second longitudinal dislocation region; 108. a third longitudinal dislocation region; 200. a variable-pitch module; 201. a radio frequency connector; 2011. an arc groove; 300. a radio frequency harness; 3001. a coil; 301. a radio frequency cable; 3011. a multi-core inner conductor; 3012. an insulator; 3013. an inner shielding layer; 3014. an intermediate stabilization layer; 3015. an outer conductor; 3016. a sheath; 302. SMP connector a; 303. SMP connector B; 3031. a housing; 3032. a plug; 3033. a circular arc structure; 304. and (5) a wire clamp.
Detailed Description
As shown in fig. 1-7, a radio frequency module combination applied to a variable-pitch phased array antenna comprises a frame 100, wherein the frame 100 is provided with a bottom plate 101, the bottom plate 101 is provided with a plurality of variable-pitch modules 200 and a lower baffle plate 102, the frame 100 is provided with an upper baffle plate 103, the upper baffle plate 103 and the lower baffle plate 102 form a wire containing space, the variable-pitch modules 200 are respectively provided with a radio frequency connector 201, a plurality of radio frequency wire harnesses 300 are wound to form a plurality of coils 3001, the coils 3001 are arranged in the wire containing space, one ends of the radio frequency wire harnesses 300 are respectively connected with the bottom plate 101, the other ends of the radio frequency wire harnesses 300 are respectively movably connected with the radio frequency connector 201, and the coils 3001 move in the wire containing space in a telescopic manner along with the action of the variable-pitch modules 200.
The upper end of the bottom plate 101 is provided with a screw rod, the screw rod comprises a motor, two sides of the screw rod are provided with sliding rails, the screw rod and the sliding rails are respectively provided with a plurality of sliding blocks, the variable-pitch modules 200 are respectively correspondingly arranged at the upper ends of the sliding blocks, the motor drives the screw rod to act, and the screw rod controls the telescopic variable-pitch action of the plurality of variable-pitch modules 200.
The line containing space comprises an upper line containing space 104 and a lower line containing space 105; the upper baffle 103 includes an upper right baffle 1031 and an upper left baffle 1032, an upper line containing space 104 is formed between the upper right baffle 1031 and the upper left baffle 1032, the lower baffle 102 includes a lower right baffle 1021 and a lower left baffle 1022, a lower line containing space 105 is formed between the lower right baffle 1021 and the lower left baffle 1022, an upper edge of the coil 3001 is arranged in the upper line containing space 104, and a lower edge of the coil 3001 is arranged in the lower line containing space 105.
The radio-frequency wire harness 300 comprises a radio-frequency cable 301, wherein SMP connectors A302 and SMP connectors B303 are respectively arranged at two ends of the radio-frequency cable 301, and the SMP connectors A302 are arranged at the upper end of the bottom plate 101 and fixedly connected with a lower left baffle 1022 through wire clamps 304; SMP connector B303 is movably connected to rf connector 201.
The radio frequency harness 300 is wound in the following manner:
the SMP connector A302 is arranged at the upper end of the bottom plate 101 and is fixedly connected with the lower left baffle 1022 through the wire clamp 304;
Winding the radio frequency cable 301 to form coils 3001, wherein the number of turns of the coils 3001 is more than or equal to 2, and in order to ensure that the coils 3001 are not mutually wound to form transverse dislocation, namely the transverse center-to-center distance between the coils 3001 is more than or equal to 30mm;
SMP connector B303 is movably connected to rf connector 201.
The device also comprises a longitudinal dislocation zone, wherein the longitudinal dislocation zone comprises a first longitudinal dislocation zone 106, a second longitudinal dislocation zone 107 and a third longitudinal dislocation zone 108; a first longitudinal displacement zone 106 is formed between SMP connector B303 and the upper left baffle 1032; the longitudinal spacing between the coils 3001 forms a second longitudinal misalignment region 107; the third longitudinal displacement zone 108 is formed between the SMP connector a302 and the lower left baffle 1022.
The arrangement of the longitudinal dislocation area can facilitate the spatial arrangement of the radio frequency wire harness 300, also reserves sufficient space for reasonable movement of the radio frequency wire harness 300, ensures that the radio frequency wire harness 300 moves in the wire accommodating space in a certain track in the movement process, and ensures the service life requirement after multiple movements.
The first longitudinal dislocation area 106 is less than or equal to 15mm, and the second longitudinal dislocation area 107 and the third longitudinal dislocation area 108 are both less than or equal to 20mm.
The radio frequency cable 301 comprises a multi-core inner conductor 3011, an insulator 3012 is wrapped outside the multi-core inner conductor 3011, an inner shielding layer 3013 is wrapped outside the insulator 3012, an intermediate stabilizing layer 3014 is wrapped outside the inner shielding layer 3013, an outer conductor 3015 is wrapped outside the intermediate stabilizing layer 3014, a sheath 3016 is wrapped outside the outer conductor 3015, and the multi-core inner conductor 3011 is a 7-core inner conductor formed by twisting 7 inner conductors.
The multi-core inner conductor 3011 is formed by twisting a plurality of inner conductors, and has the characteristics of multiple cores, stress can be well released in the repeated bending process, and the multi-core inner conductor 3011 has better stress bearing capacity and longer service life than that of a single-core cable; meanwhile, the radio frequency cable 301 contains the middle stabilizing layer 3014, so that the inner shielding layer 3013 of the radio frequency cable 301 has good wrapping property, and the structure of the inner shielding layer 3013 can be kept stable in the repeated pitch-changing process of the radio frequency cable 301, so that the stable electrical performance requirement is further realized.
The SMP connector B303 includes a housing 3031 and a plug 3032, an arc structure 3033 is provided at an end of the plug 3032, and threads are provided on an inner periphery of the housing 3031; the periphery of the radio frequency connector 201 is provided with threads, the radio frequency connector 201 is internally provided with an arc groove 2011 matched with the arc structure 3033, the plug 3032 is inserted into the radio frequency connector 201, the arc structure 3033 is positioned in the arc groove 2011, and the plug 3032 is connected with the radio frequency connector 201 through threads arranged on the inner periphery of the shell 3031 and threads arranged on the outer periphery of the radio frequency connector 201 in a matched mode.
Because the radio frequency cable 301 can be driven to swing in repeated pitch-changing work, the radio frequency cable 301 further drives the joint part of the SMP connector B303 to rotate along with the radio frequency cable, the risk that the butt-joint meshing part is possibly worn down under repeated rotation, and then the risk of poor contact can be possibly caused, the end part of the plug 3032 is provided with an arc structure 3033, the contact area is increased, the good contact life of a product in the repeated rotation process is ensured, and the service life can reach 10000 times through test verification.
After the SMP connector B303 is connected to the rf connector 201, the pitch-varying module 200 operates to drive the coil 3001 to follow up, and the SMP connector B303 can rotate about the axis of the rf connector 201.
The SMP connector B303 can rotate and not drop, and meanwhile, the radio frequency wire harness 300 is wound to form the coil 3001, and the auxiliary effects of the baffle 103 and the lower baffle 102 ensure that the radio frequency wire harness 300 can normally work in the telescoping process of the variable-pitch module 200 in a telescoping state, and is not mutually wound, so that the connection of long-distance signal transmission can be realized, good and stable electrical performance under high frequency can be ensured, and the service life of tens of thousands of times can be met.
Claims (6)
1. The radio frequency module combination applied to the variable-pitch phased array antenna is characterized by comprising a frame (100), wherein the frame (100) is provided with a bottom plate (101), the bottom plate (101) is provided with a plurality of variable-pitch modules (200) and a lower baffle (102), the frame (100) is provided with an upper baffle (103), the upper baffle (103) and the lower baffle (102) form a wire containing space, a plurality of variable-pitch modules (200) are respectively provided with a radio frequency connector (201), a plurality of radio frequency wire harnesses (300) are wound to form a plurality of coils (3001), a plurality of coils (3001) are arranged in the wire containing space, one ends of the radio frequency wire harnesses (300) are respectively connected with the bottom plate (101), the other ends of the radio frequency wire harnesses (300) are respectively movably connected with the radio frequency connector (201), and the coils (3001) move in the wire containing space in a telescopic manner along with the action of the variable-pitch modules (200);
The wire containing space comprises an upper wire containing space (104) and a lower wire containing space (105); the upper baffle plate (103) comprises an upper right baffle plate (1031) and an upper left baffle plate (1032), an upper line containing space (104) is formed between the upper right baffle plate (1031) and the upper left baffle plate (1032), the lower baffle plate (102) comprises a lower right baffle plate (1021) and a lower left baffle plate (1022), a lower line containing space (105) is formed between the lower right baffle plate (1021) and the lower left baffle plate (1022), the upper edge of the coil (3001) is arranged in the upper line containing space (104), and the lower edge of the coil (3001) is arranged in the lower line containing space (105);
The radio frequency wire harness (300) comprises a radio frequency cable (301), wherein SMP connectors A (302) and SMP connectors B (303) are respectively arranged at two ends of the radio frequency cable (301), and the SMP connectors A (302) are arranged at the upper end of the bottom plate (101) and fixedly connected with the lower left baffle plate (1022) through wire clamps (304); the SMP connector B (303) is movably connected with the radio frequency connector (201);
The mode of the winding of the radio frequency wire harness (300) is as follows:
An SMP connector A (302) is arranged at the upper end of the bottom plate (101) and is fixedly connected with the lower left baffle plate (1022) through a wire clamp (304);
Winding the radio frequency cable (301) to form the coil (3001), wherein the number of turns of the coil (3001) is more than or equal to 2, and in order to ensure that the coils (3001) are not mutually wound, transverse dislocation is formed, namely, the transverse center-to-center distance between the coils (3001) is more than or equal to 30mm;
movably connecting an SMP connector B (303) with the radio frequency connector (201);
The SMP connector B (303) comprises a shell (3031) and a plug (3032), wherein an arc structure (3033) is arranged at the end part of the plug (3032), and threads are arranged on the inner periphery of the shell (3031); the radio frequency connector is characterized in that threads are arranged on the periphery of the radio frequency connector (201), an arc groove (2011) matched with the arc structure (3033) is formed in the radio frequency connector (201), a plug (3032) is inserted into the radio frequency connector (201), the arc structure (3033) is located in the arc groove (2011), and the plug (3032) is connected with the radio frequency connector (201) through threads formed in the inner periphery of the shell (3031) and threads formed in the periphery of the radio frequency connector (201) in a matched mode.
2. The radio frequency module combination applied to the variable-pitch phased array antenna according to claim 1, wherein a screw is arranged at the upper end of the base plate (101), the screw comprises a motor, sliding rails are arranged on two sides of the screw, a plurality of sliding blocks are arranged on the screw and the sliding rails, the variable-pitch modules (200) are correspondingly arranged at the upper ends of the sliding blocks respectively, the motor drives the screw to act, and the screw controls a plurality of variable-pitch modules (200) to stretch and change pitch.
3. The radio frequency module combination for a variable-pitch phased array antenna of claim 1, further comprising a longitudinal misalignment region, the longitudinal misalignment region comprising a first longitudinal misalignment region (106), a second longitudinal misalignment region (107), and a third longitudinal misalignment region (108); -the first longitudinal misalignment zone (106) is formed between the SMP connector B (303) and the upper left baffle (1032); -the longitudinal spacing between the coils (3001) forms the second longitudinal displacement zone (107); a third longitudinal displacement zone (108) is formed between the SMP connector A (302) and the lower left baffle (1022).
4. A radio frequency module combination for use in a variable pitch phased array antenna as claimed in claim 3, wherein the first longitudinal misalignment region (106) is less than or equal to 15mm, and the second longitudinal misalignment region (107) and the third longitudinal misalignment region (108) are each less than or equal to 20mm.
5. The radio frequency module combination applied to the variable-pitch phased array antenna according to claim 1, wherein the radio frequency cable (301) comprises a multi-core inner conductor (3011), an insulator (3012) is wrapped outside the multi-core inner conductor (3011), an inner shielding layer (3013) is wrapped outside the insulator (3012), an intermediate stabilizing layer (3014) is wrapped outside the inner shielding layer (3013), an outer conductor (3015) is wrapped outside the intermediate stabilizing layer (3014), a sheath (3016) is wrapped outside the outer conductor (3015), and the multi-core inner conductor (3011) is a 7-core inner conductor formed by twisting 7 inner conductors.
6. The radio frequency module combination applied to a variable-pitch phased array antenna according to claim 1, wherein after the SMP connector B (303) is connected with the radio frequency connector (201), the coil (3001) is driven to follow by the action of the variable-pitch module (200), and the SMP connector B (303) can rotate around the axis of the radio frequency connector (201).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410115003.3A CN117650402B (en) | 2024-01-29 | 2024-01-29 | Radio frequency module combination applied to variable-pitch phased array antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410115003.3A CN117650402B (en) | 2024-01-29 | 2024-01-29 | Radio frequency module combination applied to variable-pitch phased array antenna |
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| CN117650402A CN117650402A (en) | 2024-03-05 |
| CN117650402B true CN117650402B (en) | 2024-04-26 |
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| CN202410115003.3A Active CN117650402B (en) | 2024-01-29 | 2024-01-29 | Radio frequency module combination applied to variable-pitch phased array antenna |
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| Publication number | Publication date |
|---|---|
| CN117650402A (en) | 2024-03-05 |
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