CN108777352B - Dual-polarized microstrip patch oscillator assembly - Google Patents
Dual-polarized microstrip patch oscillator assembly Download PDFInfo
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- CN108777352B CN108777352B CN201810427044.0A CN201810427044A CN108777352B CN 108777352 B CN108777352 B CN 108777352B CN 201810427044 A CN201810427044 A CN 201810427044A CN 108777352 B CN108777352 B CN 108777352B
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- 230000009977 dual effect Effects 0.000 claims abstract description 32
- 230000010287 polarization Effects 0.000 claims abstract description 28
- 239000002184 metal Substances 0.000 claims abstract description 17
- 230000003071 parasitic effect Effects 0.000 claims abstract description 16
- 230000005540 biological transmission Effects 0.000 claims abstract description 12
- 230000008878 coupling Effects 0.000 claims abstract description 11
- 238000010168 coupling process Methods 0.000 claims abstract description 11
- 238000005859 coupling reaction Methods 0.000 claims abstract description 11
- 239000000523 sample Substances 0.000 claims abstract description 11
- 239000000758 substrate Substances 0.000 claims abstract description 11
- 238000009826 distribution Methods 0.000 claims abstract description 4
- 238000009434 installation Methods 0.000 claims abstract description 4
- 239000012634 fragment Substances 0.000 claims description 4
- 238000003825 pressing Methods 0.000 claims description 4
- 239000004020 conductor Substances 0.000 claims description 3
- 239000011810 insulating material Substances 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 description 6
- 238000003466 welding Methods 0.000 description 4
- 238000005388 cross polarization Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001413 cellular effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000010295 mobile communication Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
- H01Q1/38—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q19/00—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic
- H01Q19/10—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces
- H01Q19/106—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces using two or more intersecting plane surfaces, e.g. corner reflector antennas
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- Waveguide Aerials (AREA)
Abstract
The utility model provides a dual polarization microstrip paster oscillator subassembly, including dual polarization feed connecting cable, feed PCB base plate and two transmission cable, still include the oscillator support, paste on one of them side of oscillator support and be equipped with the reflecting plate, four feed pieces of interval distribution on the oscillator support, one of them one end of feed piece runs through the oscillator support in proper order, reflecting plate and feed PCB base plate and with dual polarization feed connecting cable both ends installation's metal probe coupling is connected, all cover on every feed piece one side of keeping away from the oscillator support has the insulating piece, support on the insulating piece has the oscillator piece, be provided with two at least archs on the oscillator support, support the parasitic patch on the arch, form the air medium layer between parasitic patch and the oscillator piece so that the conducted signal. According to the invention, air is used as a medium substrate, and a parasitic patch is added above the main patch, and a mode of coupling and feeding by a metal probe is designed, so that the problem of narrow impedance bandwidth of the microstrip antenna, particularly the dual-polarized microstrip antenna, is solved.
Description
Technical Field
The present invention relates to the field of communications devices, and in particular, to an antenna element.
Background
Microstrip patch antennas are a basic and important type of antenna. Unlike half-wave oscillators, microstrip patch antennas rely on the electric field between their two side edges and the underlying floor to radiate, essentially a two-element slot array. Unlike the former, the height of the patch from ground must be close to a quarter wavelength, but can be much smaller than the operating wavelength, thus providing the natural advantage of a low profile. In addition, the microstrip patch antenna has the advantages of wide suitable frequency range, realization of various dual polarization, low cost, easy production and the like, and has been widely applied in the engineering field. However, microstrip patches are typical resonant antennas, with very high Q and narrow bandwidth. Therefore, the application range is relatively narrow.
The antenna element is an element on the antenna, has the functions of guiding and amplifying electromagnetic waves, and enables electromagnetic signals received by the antenna to be stronger, and the bandwidth of the antenna is mainly determined by the antenna element.
Disclosure of Invention
The invention aims to solve the problem that the bandwidth of an antenna is relatively narrow due to a vibrator structure in the existing microstrip patch antenna, and provides a dual-polarized microstrip patch vibrator assembly.
The invention solves the technical problems, and adopts the following technical scheme:
the utility model provides a dual polarization microstrip paster oscillator subassembly, including dual polarization feed connecting cable, feed PCB base plate and two transmission cables, dual polarization feed connecting cable passes through cable buckle joint on one of them side of feed PCB base plate, two transmission cables are connected with the anodal feed point and the negative pole in the dual polarization feed connecting cable respectively and feed the point, still include the oscillator support of making by insulating material, paste on one of them side of oscillator support and be equipped with the reflecting plate, one side that the feed PCB base plate kept away from dual polarization feed connecting cable is pasted and is established on the reflecting plate, four feed pieces of interval distribution on the oscillator support, one of them one end of feed piece runs through oscillator support in proper order, reflecting plate and feed PCB base plate and with the metal probe coupling connection of dual polarization feed connecting cable both ends installation, all cover the insulating piece on one side that every feed piece kept away from the oscillator support, support has the oscillator piece on the insulating piece, be provided with two at least archs on the oscillator support, the arch runs through the oscillator piece, support has parasitic patch on the one end that the oscillator piece was kept away from to the arch, form the air dielectric layer in order to conduct signal between parasitic patch and the oscillator piece.
The feeding sheet is made of metal conductive materials, and the surface of the feeding sheet is tinned.
The transmission cable is buckled on the feed PCB substrate through a cable pressing sheet.
The oscillator support is provided with a connecting channel for penetrating the feed end of the feed piece, and the projection of the tail end of the connecting channel coincides with the feed end of the dual-polarized feed connecting cable.
The oscillator support be close to one side of reflecting plate be provided with two at least first buckles, first buckle runs through reflecting plate and feed PCB base plate in proper order, with reflecting plate and feed PCB base plate lock joint on the oscillator support, be provided with four second buckles on the opposite side of oscillator support, the second buckle runs through feed piece, insulating piece and oscillator piece in proper order and lock joint three on the oscillator support, is provided with the third buckle on the one end that the oscillator piece was kept away from to the arch and will parasitize the paster lock joint on the arch.
The cable buckle fix on oscillator support, the one end of cable buckle card cable runs through reflecting plate and feed PCB base plate in proper order.
The oscillator support be close to the one end of feed piece on be provided with a plurality of elastic bulge, compress tightly the feed piece top through the elastic force of elastic bulge and establish on the oscillator piece, be provided with a plurality of shell fragments on the one end that the oscillator support is close to the reflecting plate, compress tightly the reflecting plate top through the elastic force of shell fragment and establish on the feed PCB base plate.
Eight elastic protrusions are arranged, four elastic sheets are arranged, and the end face of the elastic sheet is higher than the assembling face of the vibrator bracket.
The protrusions are four.
The beneficial effects of the invention are as follows: according to the invention, air is used as a medium substrate, a parasitic patch is added above the main patch, and a metal probe coupling feed mode is designed, so that the problem of narrow impedance bandwidth of the microstrip antenna, particularly the dual-polarized microstrip antenna, is solved, and the whole vibrator assembly can be assembled without adding any fasteners such as screws, rivets and the like. In order to solve the smooth laminating problem of feed piece and oscillator piece, the oscillator support sets up eight elasticity bump (see C departments) in feed piece assembling surface bottom, withstands the feed piece in order to laminate the oscillator piece. In order to solve the problem of smooth lamination of the reflecting plate and the feed PCB, the vibrator bracket bottom is provided with four elastic sheets (E) with an assembling surface (F) of the vibrator bracket at the high position of the end surface of the elastic sheet, the bottom buckling position of the vibrator bracket buckles the feed PCB, and the four elastic sheets of the vibrator bracket continuously apply upward pressure to the reflecting plate, so that the feed PCB is tightly attached to the reflecting plate. The metal feeding sheet is adopted to carry out coupling feeding on the main patch, and the impedance bandwidth of the vibrator is expanded by optimizing the size of the metal feeding sheet; the metal feed piece replaces the core wire of the coaxial cable, and the coaxial cable is only welded with the feed piece and the feed PCB on the back surface of the reflecting plate, and is not required to pass through the front surface of the reflecting plate to be welded with the main patch.
Drawings
Fig. 1 is a schematic diagram of the overall structure of the present invention.
Fig. 2 is a schematic view of the back side of fig. 1 according to the present invention.
Fig. 3 is an exploded view of the present invention.
Fig. 4 is a schematic structural view of the vibrator support of the present invention.
Fig. 5 is a schematic view of the back side of fig. 4 according to the present invention.
The graphic indicia: 1. parasitic patch, 2, oscillator piece, 3, reflecting plate, 4, oscillator support, 401, protruding, 402, third buckle, 403, second buckle, 404, cable buckle, 405, first buckle, 5, feed PCB base plate, 6, dual polarization feed connecting cable, 7, cable preforming, 8, transmission cable, 9, feed piece, 10, insulating piece.
Detailed Description
The specific embodiments shown in the drawings are as follows:
the utility model provides a dual polarization microstrip paster oscillator subassembly, including dual polarization feed connecting cable 6, feed PCB base plate 5 and two transmission cables 8, dual polarization feed connecting cable 6 passes through cable buckle 404 joint on one of them side of feed PCB base plate 5, two transmission cables 8 are connected with the positive polarization feed point and the negative polarization feed point in the dual polarization feed connecting cable 6 respectively, still include the oscillator support 4 of being made by insulating material, paste on one of them side of oscillator support 4 and be equipped with reflector plate 3, the one side subsides of feed PCB base plate 5 keeping away from dual polarization feed connecting cable 6 are established on reflector plate 3, four feed pieces 9 of interval distribution on the oscillator support 4, one of them one end of feed piece 9 runs through oscillator support 4 in proper order, reflector plate 3 and feed PCB base plate 5 and with the metal probe coupling connection of dual polarization feed connecting cable 6 both ends installation, just so accomplish on the feed PCB base plate alone with the four ways of dual polarization, the metal probe of a top loading horizontal metal piece is connected to every way feed end for coupling feed to main paster. Four probes link as an organic wholely through the plastic spare, have further simplified the assembly process, all cover on the one side that the oscillator support was kept away from to every feed piece has insulating piece 10, supports on the insulating piece 10 has oscillator piece 2, is provided with four archs 401 on the oscillator support 4, and arch 401 runs through oscillator piece 2, and protruding 401 keeps away from on the one end of oscillator piece 2 and supports has parasitic paster 1, forms the air medium layer in order to conduct signal between parasitic paster 1 and the oscillator piece 2.
The feeding sheet 9 is made of metal conductive materials, and the surface of the feeding sheet 9 is tinned.
The transmission cable 8 is buckled on the feed PCB substrate 5 through the cable pressing sheet 7, so that welding spots are prevented from being pulled during assembly through the cable pressing sheet in the process of connecting the antenna feed network by welding the transmission cable.
The vibrator support 4 is provided with a connecting channel for penetrating the feed end of the feed piece, such as a hole A in fig. 4, and the projection of the tail end of the connecting channel coincides with the feed end of the dual-polarized feed connecting cable.
8 first buckles 405 are arranged on one side of the oscillator support 4, which is close to the reflecting plate 3, the first buckles 405 sequentially penetrate through the reflecting plate 3 and the feed PCB substrate 5, the reflecting plate 3 and the feed PCB substrate 5 are buckled on the oscillator support 4, four pairs of second buckles 403 are arranged on the other side of the oscillator support 4, each pair of second buckles sequentially penetrate through the same feed piece 9, the insulating piece 10 and the oscillator piece 2 and are buckled on the oscillator support 4, and a third buckle 402 is arranged at one end, far away from the oscillator piece 2, of the boss 401 to buckle the parasitic patch on the boss 401.
The cable buckle 404 is fixed on the oscillator support 4, and one end of the cable buckle 404, which is clamped with the cable, sequentially penetrates through the reflecting plate 3 and the feed PCB substrate 5.
Eight elastic bulges are arranged at one end, close to the feed piece, of the oscillator support 4, the feed piece is tightly pressed on the oscillator piece 2 through elastic acting force of the elastic bulges, four elastic pieces are arranged at one end, close to the reflecting plate 3, of the oscillator support 4, the reflecting plate is tightly pressed on the feed PCB substrate 5 through elastic acting force of the elastic pieces, and the end faces of the elastic pieces are higher than the assembling face of the oscillator support.
The first buckle 405, the second buckle 403 and the third buckle 402 of the through holes can be directly fixed, so that hidden dangers that the connection reliability and the passive intermodulation performance are seriously affected by screw fixation, direct welding feeding on a main patch and the like are eliminated.
The bandwidth is widened by selecting a dielectric substrate material with low dielectric constant and thicker, an additional parasitic patch, two-point feeding, capacitive coupling feeding and the like. By these measures, the bandwidth can be widened to 25% or even wider, which greatly expands the application field of the microstrip patch antenna. For example, in the GSM800/900M frequency band of cellular mobile communication, if a conventional cross vibrator or four vibrator array scheme is adopted, the height can reach more than 70-80mm, the feeding is more complex, and the assembly process is more. If the microstrip patch antenna after the vibrator assembly is adopted in the application, the height can be reduced by at least 50%, the weight is reduced by at least 30%, the assembly process is simplified by 25%, and the cost is reduced by 35%.
In a broadband dual-polarized microstrip patch antenna covering the GSM800/900M frequency band, in order to widen the bandwidth, improve the gain and the cross polarization ratio, air is adopted as a medium substrate in a local oscillator subassembly, a parasitic patch is added above a main patch, and a mode of coupling and feeding by a metal probe is designed, the microstrip antenna, in particular to a dual-polarized microstrip antenna, has the advantages that the problem of narrow impedance bandwidth is solved, the impedance bandwidth of the oscillator completely covers the GSM800/900M frequency band (VSWR is less than or equal to 1.3), and the gain of the oscillator is improved and the cross polarization is reduced by optimizing the sizes of the main patch, the parasitic patch and the feeding position. In addition, for convenient assembly and production, four-way feeding of two polarizations is independently realized on a PCB, and each feeding end is connected with a metal probe of which the top is loaded with a horizontal metal sheet and used for coupling and feeding to the main patch. The four probes are connected into a whole through the plastic part, so that the assembly process is further simplified, and hidden dangers that the connection reliability and the passive intermodulation performance are seriously affected by screw fixation, direct welding feeding on the main patch and the like are eliminated. Through the technical measures, the invention simultaneously realizes good electrical performance index and better economical efficiency of the mobile base station antenna, and has important application value.
The implementation process comprises the following steps:
as shown in fig. 3/fig. 4, during assembly, 4 feeding pieces are inserted into four groups of holes shown in the position of the vibrator support a, meanwhile, round holes at two ends of each feeding piece are required to be inserted into a buckling position of the vibrator support B, each feeding piece is made of a metal material with good conduction, and the surface is plated with tin.
The buckling positions (8 positions) at the B part shown in the oscillator support of fig. 4 are respectively buckled into 4 insulating sheets, so that the feed sheet and the oscillator sheet are prevented from being conducted.
The oscillator piece is buckled into the buckling position (B position) of the middle layer of the oscillator bracket, and the buckling position corresponds to the oscillator piece hole position.
The parasitic patch is buckled in the top buckle of the oscillator bracket.
And buckling the buckling position (D position) of the bottom layer of the assembled vibrator bracket into the corresponding hole of the reflecting plate.
And buckling the feed PCB into the buckling position of the oscillator bracket (D).
The two feed points of positive and negative polarization are respectively connected by a feed connection cable.
The technical scheme and the embodiment of the invention are not limited, and the technical scheme and the embodiment which are equivalent or have the same effect as those of the technical scheme and the embodiment of the invention are all within the protection scope of the invention.
Claims (9)
1. The utility model provides a dual polarization microstrip paster oscillator subassembly, includes dual polarization feed connecting cable, feed PCB base plate and two transmission cable, and dual polarization feed connecting cable passes through cable buckle joint on one of them side of feed PCB base plate, and two transmission cable are connected its characterized in that with the anodal in the dual polarization feed connecting cable feed point and negative pole change feed point respectively: still include the oscillator support of making by insulating material, paste on one of them side of oscillator support and be equipped with the reflecting plate, one side subsides of dual polarization feed connecting cable are established on the reflecting plate in the subsides of feed PCB base plate, four feeding pieces of interval distribution on the oscillator support, one of them one end of feeding piece runs through the oscillator support in proper order, reflecting plate and feed PCB base plate and with dual polarization feed connecting cable both ends installation's metal probe coupling is connected, all cover the insulating piece on one side of every feeding piece keeping away from the oscillator support, support has the oscillator piece on the insulating piece, be provided with two at least archs on the oscillator support, the arch runs through the oscillator piece, it has parasitic paster to support on the one end that the oscillator piece was kept away from to the arch, form the air medium layer so that the conducted signal between parasitic paster and the oscillator piece.
2. The dual polarized microstrip patch element assembly of claim 1, wherein: the feeding sheet is made of metal conductive materials, and the surface of the feeding sheet is tinned.
3. The dual polarized microstrip patch element assembly of claim 1, wherein: the transmission cable is buckled on the feed PCB substrate through a cable pressing sheet.
4. The dual polarized microstrip patch element assembly of claim 1, wherein: the oscillator support is provided with a connecting channel for penetrating the feed end of the feed piece, and the projection of the tail end of the connecting channel coincides with the feed end of the dual-polarized feed connecting cable.
5. The dual polarized microstrip patch element assembly of claim 1, wherein: the oscillator support be close to one side of reflecting plate be provided with two at least first buckles, first buckle runs through reflecting plate and feed PCB base plate in proper order, with reflecting plate and feed PCB base plate lock joint on the oscillator support, be provided with four second buckles on the opposite side of oscillator support, the second buckle runs through feed piece, insulating piece and oscillator piece in proper order and lock joint three on the oscillator support, is provided with the third buckle on the one end that the oscillator piece was kept away from to the arch and will parasitize the paster lock joint on the arch.
6. The dual polarized microstrip patch element assembly of claim 1, wherein: the cable buckle fix on oscillator support, the one end of cable buckle card cable runs through reflecting plate and feed PCB base plate in proper order.
7. The dual polarized microstrip patch element assembly of claim 1, wherein: the oscillator support be close to the one end of feed piece on be provided with a plurality of elastic bulge, compress tightly the feed piece top through the elastic force of elastic bulge and establish on the oscillator piece, be provided with a plurality of shell fragments on the one end that the oscillator support is close to the reflecting plate, compress tightly the reflecting plate top through the elastic force of shell fragment and establish on the feed PCB base plate.
8. The dual polarized microstrip patch element assembly of claim 7, wherein: the elastic protrusions are eight, the elastic sheets are four, and the end faces of the elastic sheets are higher than the assembling face of the vibrator bracket.
9. The dual polarized microstrip patch element assembly of claim 1, wherein: the protrusions are four.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810427044.0A CN108777352B (en) | 2018-05-07 | 2018-05-07 | Dual-polarized microstrip patch oscillator assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810427044.0A CN108777352B (en) | 2018-05-07 | 2018-05-07 | Dual-polarized microstrip patch oscillator assembly |
Publications (2)
| Publication Number | Publication Date |
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| CN108777352A CN108777352A (en) | 2018-11-09 |
| CN108777352B true CN108777352B (en) | 2024-04-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810427044.0A Active CN108777352B (en) | 2018-05-07 | 2018-05-07 | Dual-polarized microstrip patch oscillator assembly |
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| CN (1) | CN108777352B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109755721B (en) * | 2019-01-22 | 2021-03-05 | 中信科移动通信技术有限公司 | Microstrip radiating element and array antenna |
| CN109725205B (en) * | 2019-01-31 | 2024-07-09 | 广东通宇通讯股份有限公司 | Debugging frock that antenna performance test used |
| WO2021000192A1 (en) * | 2019-06-30 | 2021-01-07 | 瑞声声学科技(深圳)有限公司 | Lightweight antenna vibrator unit, lightweight array antenna, and method for assembling antenna unit |
| WO2021000190A1 (en) * | 2019-06-30 | 2021-01-07 | 瑞声声学科技(深圳)有限公司 | Antenna oscillator unit, base-station array antenna, and assembly method therefor |
| CN112510339B (en) * | 2020-12-22 | 2021-10-15 | 华南理工大学 | High-selectivity gain dual-polarized filtering patch antenna |
| CN116995411A (en) * | 2022-04-24 | 2023-11-03 | 华为技术有限公司 | Antenna, communication equipment and base station |
| CN117525848B (en) * | 2023-12-26 | 2024-06-21 | 南通大学 | Antenna element for 5G communication base station |
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| Publication number | Publication date |
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| CN108777352A (en) | 2018-11-09 |
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