CN104494037A - Dielectric lens processing method and dielectric lens prepared by utilizing same - Google Patents
Dielectric lens processing method and dielectric lens prepared by utilizing same Download PDFInfo
- Publication number
- CN104494037A CN104494037A CN201410712961.5A CN201410712961A CN104494037A CN 104494037 A CN104494037 A CN 104494037A CN 201410712961 A CN201410712961 A CN 201410712961A CN 104494037 A CN104494037 A CN 104494037A
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- China
- Prior art keywords
- lens
- molded portion
- injection molding
- processing method
- cavity
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/14467—Joining articles or parts of a single article
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q15/00—Devices for reflection, refraction, diffraction or polarisation of waves radiated from an antenna, e.g. quasi-optical devices
- H01Q15/02—Refracting or diffracting devices, e.g. lens, prism
- H01Q15/08—Refracting or diffracting devices, e.g. lens, prism formed of solid dielectric material
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Aerials With Secondary Devices (AREA)
Abstract
The invention discloses a dielectric lens processing method. The method comprises the following steps: dividing a dielectric lens into a first injection molding part and a second injection molding part, wherein the first injection molding part is positioned at the periphery of the lens and comprises an impedance matching branch knot, and a cavity is formed inside the first injection molding part, the second injection molding part can be positioned in the cavity of the first injection molding part and is matched with the first injection molding part; performing injection molding on the second injection molding part, adding the molded second injection molding part in a cavity which corresponds to an injection mold of the first injection molding part; and performing injection molding so as to fuse the dielectric surfaces of the two parts together, thus forming the dielectric lens wholly. The invention also discloses a dielectric lens prepared by utilizing the method and application thereof. According to the method disclosed by the invention, the dielectric lens with high consistency and low cost and without bubbles can be obtained, and the problem that the lens has bubbles so as to influence the performance due to non-uniform impedance matching branch knots in the conventional lens injection molding is solved.
Description
Technical field
The invention belongs to field of microwave communication, be specifically related to a kind of processing method of di-lens of electromagnetic horn, be applicable to medium electromagnetic horn.
Background technology
Di-lens forms primarily of lens body, impedance matching minor matters and boss.Wherein, lens body is uniform entity, and entirety is curved plate body structure, wherein curvature portion and relative planar section has the groove of multiple through plate body, thus forms multiple tooth from the teeth outwards, as impedance matching minor matters.Boss is arranged by two side planes that protrude from plate body and be parallel to each other.In general, impedance matching minor matters are coupling minor matters heterogeneous mainly, and namely the thickness of each tooth has difference.
Present stage, the di-lens of most of electromagnetic horn adopts polyethylene foamed or polythene material.The processing technology of expanded material is complicated, and the uniformity of product is difficult to control, and therefore the cost of product is very high, is not suitable for producing in enormous quantities.
Adopt the lens of polythene material generally to adopt the mode of machining or injection moulding to carry out lens processing, because poly material is softer, carrying out the machine added-time exists the larger problem of mismachining tolerance, and processing cost is higher; Common injection molding manner is adopted to add man-hour, owing to mating the nonuniformity of minor matters, when together with lens body during integrated injection molding, due to its arc mechanism, have the segment thickness of coupling minor matters comparatively large, its shrinkage factor is comparatively large, and its outer surface cooling velocity will be faster than central part.Therefore, along with the carrying out of cooling, the polyethylene limit contraction edge of central part to surface spreading, thus makes the phenomenon of central part generation insufficient fill, and then forms bubble, thus has a strong impact on the technical performance of lens.
Summary of the invention
For above defect or the Improvement requirement of prior art, the processing method that the invention provides a kind of di-lens and the product utilizing the method to prepare, separately inject by di-lens being divided into two parts and when rear portion injection moulding, the front portion that injection moulding completes is put into injection mold and carry out, thus can obtain that uniformity is good, cost is low, bubble-free di-lens, solve in current lens injection moulding because the uneven lens caused of impedance matching minor matters exist the problem of its performance of aeration.
For achieving the above object, according to one aspect of the present invention, a kind of processing method of di-lens is provided, its described di-lens is divided into be positioned at lens periphery comprise impedance matching minor matters and inner the first molded portion for cavity and described first molded portion cavity can be positioned at and the second molded portion matched, by the second molded portion is first carried out injection mo(u)lding, then the second molded portion after this is shaping is placed in cavity place corresponding to the injection mould of described first molded portion, injection mo(u)lding makes described two-part dielectric surface be fused together together again, thus the described di-lens of overall formation.
As improvement of the present invention, described in when there is the first molded portion injection moulding of internal cavities shrinkage factor keep basically identical.
As improvement of the present invention, described second molded portion comprises the boss of di-lens.
As improvement of the present invention, described second molded portion is the arc body structure similar with di-lens shape.
As improvement of the present invention, described second molded portion outer peripheral face mates with the inner peripheral surface of the first molded portion cavity, be able to mate in cavity corresponding to the mould that is placed in the first molded portion for this second molded portion outer peripheral face.
According to another aspect of the present invention, provide a kind of di-lens utilizing above-mentioned processing method to prepare.
According to another aspect of the invention, provide a kind of electromagnetic horn, it has above-mentioned di-lens.
In general, the above technical scheme conceived by the present invention compared with prior art, has following beneficial effect:
(1) di-lens is divided into two parts and successively carries out twice injection step by the present invention, namely there is internal cavities and comprise the first molded portion of peripheral impedance matching minor matters and be positioned at second molded portion at middle part, wherein the wall thickness of the first molded portion is roughly the same, thus can overcome traditional injection moulding shaping in the bubble that causes because impedance matching minor matters are uneven, the problems such as uniformity is bad.
(2) technique of the present invention reduces the processing cost of di-lens, and improve machining accuracy and the technical performance of di-lens, the di-lens of processing has the features such as uniformity is good, cost is low, bubble-free, excellent performance.
Accompanying drawing explanation
Fig. 1 is di-lens structural representation;
Fig. 2 is the structural representation according to the first molded portion in the processing method constructed by the embodiment of the present invention;
Fig. 3 is the structural representation according to the second molded portion in the processing method constructed by the embodiment of the present invention;
In all of the figs, identical Reference numeral is used for representing identical element or structure, and wherein: 1 is lens body, 2 is impedance matching minor matters, and 3 is boss.
Detailed description of the invention
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.In addition, if below in described each embodiment of the present invention involved technical characteristic do not form conflict each other and just can mutually combine.
As shown in Figure 1, di-lens comprises di-lens impedance matching minor matters 2 and di-lens main body 1, and is arranged on the boss on main body two sides.
According to the injection molding method of the di-lens constructed by the present embodiment, when injection mo(u)lding is carried out to above-mentioned di-lens, lens be divided into two parts and successively carry out injection moulding.
As shown in Figures 2 and 3, the part of two shown in Fig. 2 and Fig. 3 is divided into by di-lens to carry out injection molding, wherein a part is the di-lens outer peripheral portion comprising impedance matching minor matters, another part is the di-lens core comprising boss, be similar to and di-lens entirety is cut out a part from middle part, remaining part is as Part I, and the part cut out is as Part II.
Be cavity in the middle part of Part I, Part II is more uniform entity, and cavity Part II being placed in Part I can form described di-lens.
The concrete grammar of the preparation processing of di-lens is as follows: (1) as shown in Figure 3, by the medium of Part II by injection mo(u)lding, because its profile is more regular, the shrinkage factor after injection moulding is consistent, can not there is bubble in the inside of lens; (2) as shown in Figure 3, the medium processed in Fig. 3 is put into the mould of Part I, make it to being applied to cavity place, and and then injection mo(u)lding together with Part I, and extend the insulation in a mold of Fig. 2 medium, the dwell time makes the dielectric surface in Fig. 2 and Fig. 3 be fused together.
Di-lens main body 1 is uniform entity, and thickness comparatively di-lens entirety reduce a lot, when independent injection moulding, shrinkage factor is relatively uniform, can not there is bubble in inside.Although the profile of di-lens impedance matching minor matters is irregularity shape, basic one of the thickness of various piece, shrinkage factor during injection moulding is basically identical, also can not there is bubble.
When di-lens main body carries out injection moulding together with di-lens impedance matching minor matters, because di-lens main body is positioned at the inside of di-lens impedance matching minor matters, and internal temperature is lower, impedance matching minor matters can cool inside and outside simultaneously, amount of contraction is more even, thus solve the air bubble problem of lens interior existence, and processing cost is not significantly increased.
The di-lens adopting method of the present invention to prepare has the advantages such as cost is low, performance good, bubble-free, solves the air bubble problem existing for one piece injection moulding, batch application in microwave telecommunication devices.
Di-lens of the present invention is applicable in electromagnetic horn.
Those skilled in the art will readily understand; the foregoing is only preferred embodiment of the present invention; not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (7)
1. the processing method of a di-lens, it is characterized in that, its described di-lens is divided into be positioned at lens periphery comprise impedance matching minor matters and inner the first molded portion for cavity and described first molded portion cavity can be positioned at and the second molded portion matched, by the second molded portion is first carried out injection mo(u)lding, then the second molded portion after this is shaping is placed in empty cavity position place corresponding to the injection mould of described first molded portion, injection mo(u)lding makes described two-part dielectric surface be fused together together again, thus the described di-lens of overall formation.
2. processing method according to claim 1, wherein, described in when there is the first molded portion injection moulding of internal cavities shrinkage factor keep basically identical.
3. processing method according to claim 1 and 2, wherein, described second molded portion comprises the boss of di-lens.
4. the processing method according to any one of claim 1-3, wherein, described second molded portion is the arc body structure similar with di-lens shape.
5. the processing method according to any one of claim 1-4, wherein, described second molded portion outer peripheral face mates with the inner peripheral surface of the first molded portion cavity, be able to mate in cavity corresponding to the mould that is placed in the first molded portion for this second molded portion outer peripheral face.
6. the di-lens utilizing the processing method according to any one of claim 1-5 to prepare.
7. an electromagnetic horn, it has di-lens according to claim 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410712961.5A CN104494037A (en) | 2014-11-28 | 2014-11-28 | Dielectric lens processing method and dielectric lens prepared by utilizing same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410712961.5A CN104494037A (en) | 2014-11-28 | 2014-11-28 | Dielectric lens processing method and dielectric lens prepared by utilizing same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104494037A true CN104494037A (en) | 2015-04-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410712961.5A Pending CN104494037A (en) | 2014-11-28 | 2014-11-28 | Dielectric lens processing method and dielectric lens prepared by utilizing same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104494037A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111106429A (en) * | 2019-11-08 | 2020-05-05 | 京信通信技术(广州)有限公司 | Communication device, lens antenna, and ball lens |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5162806A (en) * | 1990-02-05 | 1992-11-10 | Raytheon Company | Planar antenna with lens for controlling beam widths from two portions thereof at different frequencies |
| JPH09174596A (en) * | 1995-12-28 | 1997-07-08 | Murata Mfg Co Ltd | Production of thick-walled resin molded product and the product |
| JPH11355035A (en) * | 1998-06-05 | 1999-12-24 | Mitsubishi Electric Corp | Dielectric having matching layer |
-
2014
- 2014-11-28 CN CN201410712961.5A patent/CN104494037A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5162806A (en) * | 1990-02-05 | 1992-11-10 | Raytheon Company | Planar antenna with lens for controlling beam widths from two portions thereof at different frequencies |
| JPH09174596A (en) * | 1995-12-28 | 1997-07-08 | Murata Mfg Co Ltd | Production of thick-walled resin molded product and the product |
| JPH11355035A (en) * | 1998-06-05 | 1999-12-24 | Mitsubishi Electric Corp | Dielectric having matching layer |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111106429A (en) * | 2019-11-08 | 2020-05-05 | 京信通信技术(广州)有限公司 | Communication device, lens antenna, and ball lens |
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Application publication date: 20150408 |
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