CN105633525A - Multilayered balun - Google Patents
Multilayered balun Download PDFInfo
- Publication number
- CN105633525A CN105633525A CN201511003125.0A CN201511003125A CN105633525A CN 105633525 A CN105633525 A CN 105633525A CN 201511003125 A CN201511003125 A CN 201511003125A CN 105633525 A CN105633525 A CN 105633525A
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- CN
- China
- Prior art keywords
- coupling line
- hole
- parts
- upper strata
- screen layer
- Prior art date
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- Pending
Links
- 230000008878 coupling Effects 0.000 claims abstract description 50
- 238000010168 coupling process Methods 0.000 claims abstract description 50
- 238000005859 coupling reaction Methods 0.000 claims abstract description 50
- 229910052751 metal Inorganic materials 0.000 claims abstract description 38
- 239000002184 metal Substances 0.000 claims abstract description 38
- 230000011218 segmentation Effects 0.000 claims description 10
- 239000004800 polyvinyl chloride Substances 0.000 claims description 9
- 229920000915 polyvinyl chloride Polymers 0.000 claims description 9
- 150000003839 salts Chemical class 0.000 claims description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 6
- 239000006230 acetylene black Substances 0.000 claims description 6
- 229920003023 plastic Polymers 0.000 claims description 6
- 239000004033 plastic Substances 0.000 claims description 6
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims description 3
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 3
- AGXUVMPSUKZYDT-UHFFFAOYSA-L barium(2+);octadecanoate Chemical compound [Ba+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O AGXUVMPSUKZYDT-UHFFFAOYSA-L 0.000 claims description 3
- 229910052791 calcium Inorganic materials 0.000 claims description 3
- 239000011575 calcium Substances 0.000 claims description 3
- 235000010215 titanium dioxide Nutrition 0.000 claims description 3
- 230000010354 integration Effects 0.000 abstract 1
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 4
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 3
- HSFWRNGVRCDJHI-UHFFFAOYSA-N alpha-acetylene Natural products C#C HSFWRNGVRCDJHI-UHFFFAOYSA-N 0.000 description 3
- 239000006229 carbon black Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 125000002534 ethynyl group Chemical group [H]C#C* 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000197 pyrolysis Methods 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 2
- WSLDOOZREJYCGB-UHFFFAOYSA-N 1,2-Dichloroethane Chemical compound ClCCCl WSLDOOZREJYCGB-UHFFFAOYSA-N 0.000 description 1
- 239000005997 Calcium carbide Substances 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 238000012662 bulk polymerization Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- JHIVVAPYMSGYDF-UHFFFAOYSA-N cyclohexanone Chemical compound O=C1CCCCC1 JHIVVAPYMSGYDF-UHFFFAOYSA-N 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000005469 granulation Methods 0.000 description 1
- 230000003179 granulation Effects 0.000 description 1
- 229920001519 homopolymer Polymers 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000003999 initiator Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000010363 phase shift Effects 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- CLZWAWBPWVRRGI-UHFFFAOYSA-N tert-butyl 2-[2-[2-[2-[bis[2-[(2-methylpropan-2-yl)oxy]-2-oxoethyl]amino]-5-bromophenoxy]ethoxy]-4-methyl-n-[2-[(2-methylpropan-2-yl)oxy]-2-oxoethyl]anilino]acetate Chemical compound CC1=CC=C(N(CC(=O)OC(C)(C)C)CC(=O)OC(C)(C)C)C(OCCOC=2C(=CC=C(Br)C=2)N(CC(=O)OC(C)(C)C)CC(=O)OC(C)(C)C)=C1 CLZWAWBPWVRRGI-UHFFFAOYSA-N 0.000 description 1
- 238000001149 thermolysis Methods 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P5/00—Coupling devices of the waveguide type
- H01P5/08—Coupling devices of the waveguide type for linking dissimilar lines or devices
- H01P5/10—Coupling devices of the waveguide type for linking dissimilar lines or devices for coupling balanced lines or devices with unbalanced lines or devices
Landscapes
- Laminated Bodies (AREA)
Abstract
The invention provides a multilayered balun. The multilayered balun comprises a top layer metal ground, a bottom layer metal ground, a metal shielding layer, an upper coupling line, a wire connecting through hole, and a lower coupling line, wherein a window is formed in the metal shielding layer; the upper coupling line is positioned between the top layer metal ground and the metal shielding layer; one end of the upper coupling line is connected to the top layer metal ground through an upper grounding through hole; one end of the wire connecting through hole is connected to the other end of the upper coupling line; the wire connecting through hole passes through the window; the lower coupling line is positioned between the bottom layer metal ground and the metal shielding layer; one end of the lower coupling line is connected to the bottom layer metal ground through a lower grounding through hole; and the other end of the lower coupling line is connected to the other end of the wire connecting through hole. By adoption of the multilayered balun provided by the invention, the volume of the balun can be effectively reduced, and the integration of the balun and other circuit elements can be facilitated.
Description
Technical field
The present invention relates to microwave regime, in particular to a kind of multilayer Balun.
Background technology
In RF application, Ba Lun purposes is very extensive, and the place that any needs carry out equilibrating to uneven conversion all needs to use, such as phase-shift detection device, single sideband modulation device, balanced mixer and antenna etc. The Ba Lun of microstrip line construction, especially Marchand Ba Lun, because its model analysis is simple, the advantage such as be convenient to be coupled with coaxial line and be widely applied.
Marchand Ba Lun is made up of two sections of identical coupling lines, and the length of every section of coupling line is the quarter wave at mid-frequency place. Owing to Coupled Line Length of Band and the centre wavelength of Marchand Ba Lun is in same magnitude, therefore, its length is very long. If being produced in a plane by Marchand Ba Lun, then its volume is bigger.
Summary of the invention
The present invention proposes a kind of multilayer Balun, solves prior art mini-bus human relations volume excessive, is unfavorable in the problem that other circuit element is integrated.
The technical scheme of the present invention is achieved in that
A kind of multilayer Balun, with comprising top-level metallic with underlying metal ground; Metal screen layer, described metal screen layer has window; Upper strata coupling line, described upper strata coupling line described top-level metallic and described metal screen layer between, and described upper strata coupling line one end by upper grounding through hole be connected to described top-level metallic ground; Wire connects through hole, and one end of described wire connection through hole is connected to the other end of described upper strata coupling line, and described wire connects through hole through described window; And lower floor's coupling line, described lower floor coupling line described underlying metal and described metal screen layer between, one end of described lower floor coupling line is connected to described underlying metal ground by lower grounding through hole, and the other end of described lower floor coupling line is connected to the other end of described wire connection through hole;
Described metal screen layer is conductive plastics, comprises following component and weight part: polyvinyl chloride 100 parts, three salt 3 parts, two salt 1.5 parts, barium stearate 1.5 parts, ACR4012 part, CPE8 part, active light calcium 8 parts, titanium white 5 parts, 1 part, OP wax, acetylene black 8 parts.
Can selection of land, described upper strata coupling line and described lower floor coupling line be symmetric about described metal screen layer.
Can selection of land, described upper strata coupling line comprise the first segmentation and two-section, described first segmentation and described two-section are distributed on different media layer, and arranged vertically.
Can selection of land, described lower floor coupling line comprise the first segmentation and two-section, described first segmentation and described two-section are distributed on different media layer, and arranged vertically.
Can selection of land, described upper strata coupling line and described lower floor coupling line be width limit stripline.
Can selection of land, described upper strata coupling line and described lower floor coupling line employing meandering line structure.
The invention has the beneficial effects as follows the volume that can effectively reduce Ba Lun, be convenient to Ba Lun and other circuit element integrated.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, it is briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the perspective view of an a kind of multilayer Balun embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is only the present invention's part embodiment, instead of whole embodiments. Based on the embodiment in the present invention, those of ordinary skill in the art, not making other embodiments all obtained under creative work prerequisite, belong to the scope of protection of the invention.
Fig. 1 is the perspective view of an a kind of multilayer Balun embodiment of the present invention. As shown in Figure 1, multilayer Balun 1 comprises top-level metallic ground 21, underlying metal ground 22 and metal screen layer 3. Metal screen layer 3 has window 32, window 32 connects through hole 31 through wire. Multilayer Balun 1 also comprises upper strata coupling line 4 and lower floor's coupling line 5, and coupling line 4 in upper strata is between top-level metallic ground 21 and metal screen layer 3, and lower floor's coupling line 5 is between underlying metal ground 21 and metal screen layer 3. One end of upper strata coupling line 4 and lower floor's coupling line 5 connects through hole 31 by wire and connects to get up, and the other end of upper strata coupling line 4 is connected to top-level metallic ground 21 by through hole 43, and the other end of lower floor's coupling line 5 is connected to underlying metal ground 22 by through hole 53. In the embodiment shown in fig. 1, upper strata coupling line 4 comprises the first segmentation 41 and two-section 42, and described first segmentation 41 and two-section 42 are distributed on different media layer, and arranged vertically. Equally, lower floor's coupling line 5 comprises the first segmentation 51 and two-section 52, and described first segmentation 51 and two-section 52 are distributed on different media layer, and arranged vertically.
Described metal screen layer is conductive plastics, comprises following component and weight part: polyvinyl chloride 100 parts, three salt 3 parts, two salt 1.5 parts, barium stearate 1.5 parts, ACR4012 part, CPE8 part, active light calcium 8 parts, titanium white 5 parts, 1 part, OP wax, acetylene black 8 parts.
By adding acetylene black, obtain a kind of conductive plastics, then carry out conductivity evaluation, thus complete the present invention. The production technological process of conductive plastics of the present invention as shown in Figure 1, step 10: by each component according to certain ratio, good with electronic balance weighing; Step 20: the raw material weighed up carries out mixing in clean two roller mills; Step 30: the polyvinyl chloride mixed, rolls on plastics rolling press; Step 40: the plastic sheet that will have rolled, puts into tablets press and carries out granulation; In order to injecting or extrude use.
Polyvinyl chloride
The thermoplastic resin being polymerized under initiator effect by vinylchlorid. It it is the homopolymer of vinylchlorid. Ryuron and vinyl chloride copolymer are referred to as vinyl chloride resin. PVC has good mechanical property, about tensile strength 60MPa, shock strength 5��10kJ/m2; There are excellent dielectric properties; But the stability of light and heat is poor; PVC is very hard, and solvability is also very poor, can only be dissolved in the minority solvents such as pimelinketone, ethylene dichloride and tetrahydrofuran (THF), and organic and mineral acid, alkali, salt is all stable, and chemical stability reduces with the rising of use temperature.
In order to reach the conductivity of the present invention, the polyvinyl chloride that the present invention adopts is become by mass polymerization.
Preferably, described polyvinyl chloride, its molecular weight is 100,000, and shock strength is 8kJ/m2��
Acetylene black
Shawinigan black is the acetylene decomposing the refining purity more than 99% obtained by manufacture gas when calcium carbide route or petroleum naphtha (raw gasline) pyrolysis, the carbon black obtained after continuous pyrolysis. After Reaktionsofen inside is warming up to acetylene decomposition starting temperature more than 800 DEG C, imports acetylene and start to carry out thermolysis. Because being thermopositive reaction, reaction can carry out automatically. In order to obtain stable quality, temperature of reaction should remain on about 1800 DEG C. In-furnace temperature controls by Reaktionsofen urceolus water-cooling jacket.
Shawinigan black has following characteristic compared with other carbon black: light weight proportion is little; The big adsorptivity of specific surface area is strong; Chemical property is stablized; Good surface activity, electroconductibility height; High purity, ash content and volatile matter are low. Contrast powdery acetylene black, dustless carbon black have volume little be convenient to transport, the little advantages such as improving environment for use, mobility and good dispersity that is beneficial to of dust pollution.
In an embodiment, coupling line adopts wide limit stripline to make.
In another embodiment, coupling line is bent broken line form.
In multilayer Balun 1, coupling line 4 and 5 in completely symmetrical about metal screen layer 3, can make to export like this and has good amplitude, phase performance. Further, metal screen layer 3 also plays isolation and is coupled up and down the effect of line, to prevent the harassing of signal.
Utilize the multilayer Balun that the present invention proposes, the volume of Ba Lun can be effectively reduced, be convenient to Ba Lun and other circuit element integrated.
The foregoing is only the better embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment of doing, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (3)
1. a multilayer Balun, it is characterised in that, comprising:
Top-level metallic ground and underlying metal ground;
Metal screen layer, described metal screen layer has window;
Upper strata coupling line, described upper strata coupling line described top-level metallic and described metal screen layer between, and described upper strata coupling line one end by upper grounding through hole be connected to described top-level metallic ground;
Wire connects through hole, and one end of described wire connection through hole is connected to the other end of described upper strata coupling line, and described wire connects through hole through described window; And
Lower floor's coupling line, described lower floor coupling line described underlying metal and described metal screen layer between, one end of described lower floor coupling line is connected to described underlying metal ground by lower grounding through hole, and the other end of described lower floor coupling line is connected to the other end of described wire connection through hole;
Described metal screen layer is conductive plastics, comprises following component and weight part: polyvinyl chloride 100 parts, three salt 3 parts, two salt 1.5 parts, barium stearate 1.5 parts, ACR4012 part, CPE8 part, active light calcium 8 parts, titanium white 5 parts, 1 part, OP wax, acetylene black 8 parts.
2. multilayer Balun as claimed in claim 1, it is characterised in that, described upper strata coupling line and described lower floor coupling line are symmetric about described metal screen layer.
3. multilayer Balun as claimed in claim 1, it is characterised in that, described upper strata coupling line comprises the first segmentation and two-section, and described first segmentation and described two-section are distributed on different media layer, and arranged vertically.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511003125.0A CN105633525A (en) | 2015-12-28 | 2015-12-28 | Multilayered balun |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511003125.0A CN105633525A (en) | 2015-12-28 | 2015-12-28 | Multilayered balun |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105633525A true CN105633525A (en) | 2016-06-01 |
Family
ID=56048222
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201511003125.0A Pending CN105633525A (en) | 2015-12-28 | 2015-12-28 | Multilayered balun |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105633525A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110140255A (en) * | 2016-12-28 | 2019-08-16 | 雷声公司 | Interacted system and preparation method thereof for multi-layer RF circuit |
| CN110165351A (en) * | 2019-03-19 | 2019-08-23 | 西安电子科技大学 | A kind of transition structure of manifold type wideband microband to medium integrated waveguide |
| WO2019228102A1 (en) * | 2018-05-30 | 2019-12-05 | 罗森伯格技术（昆山）有限公司 | Compact filter |
| CN116566329A (en) * | 2022-01-27 | 2023-08-08 | 锐石创芯(深圳)科技股份有限公司 | Balun, radio frequency front end chip and radio frequency front end module |
| WO2023216666A1 (en) * | 2022-05-09 | 2023-11-16 | 华为技术有限公司 | Balun and differential amplifier |
-
2015
- 2015-12-28 CN CN201511003125.0A patent/CN105633525A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110140255A (en) * | 2016-12-28 | 2019-08-16 | 雷声公司 | Interacted system and preparation method thereof for multi-layer RF circuit |
| CN110140255B (en) * | 2016-12-28 | 2021-08-24 | 雷声公司 | Interconnection system for multilayer radio frequency circuit and manufacturing method thereof |
| WO2019228102A1 (en) * | 2018-05-30 | 2019-12-05 | 罗森伯格技术（昆山）有限公司 | Compact filter |
| CN110556616A (en) * | 2018-05-30 | 2019-12-10 | 罗森伯格技术（昆山）有限公司 | Miniaturized filter |
| CN110556616B (en) * | 2018-05-30 | 2021-10-15 | 罗森伯格技术有限公司 | Miniaturized filter |
| CN110165351A (en) * | 2019-03-19 | 2019-08-23 | 西安电子科技大学 | A kind of transition structure of manifold type wideband microband to medium integrated waveguide |
| CN110165351B (en) * | 2019-03-19 | 2020-11-10 | 西安电子科技大学 | Transition structure from coupling type broadband microstrip to dielectric integrated waveguide |
| CN116566329A (en) * | 2022-01-27 | 2023-08-08 | 锐石创芯(深圳)科技股份有限公司 | Balun, radio frequency front end chip and radio frequency front end module |
| WO2023216666A1 (en) * | 2022-05-09 | 2023-11-16 | 华为技术有限公司 | Balun and differential amplifier |
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Application publication date: 20160601 |
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