CN109585992B - Strip transmission line applied to L and S wave bands - Google Patents
Strip transmission line applied to L and S wave bands Download PDFInfo
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- CN109585992B CN109585992B CN201811425422.8A CN201811425422A CN109585992B CN 109585992 B CN109585992 B CN 109585992B CN 201811425422 A CN201811425422 A CN 201811425422A CN 109585992 B CN109585992 B CN 109585992B
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P3/00—Waveguides; Transmission lines of the waveguide type
- H01P3/02—Waveguides; Transmission lines of the waveguide type with two longitudinal conductors
- H01P3/08—Microstrips; Strip lines
- H01P3/088—Stacked transmission lines
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Abstract
The invention discloses a strip transmission line applied to L and S wave bands, which is characterized in that: contain metal casing, bottom metal level, medium basic unit, top layer metal level and metallization through-hole, the medium basic unit is fixed at the metal casing inboard, and the bottom metal level is fixed at medium basic unit downside, and the top layer metal level is fixed at medium basic unit upside, and a plurality of metallization through-holes set up in the middle of the medium basic unit and metallization through-hole both ends are connected with bottom metal level and top layer metal level respectively. The invention has simple structure, lower cost, convenient circuit design and debugging, easier processing and assembly, good electromagnetic wave transmission characteristic and lower circuit loss in L wave band and S wave band. The problems of high processing precision requirement, high cost or complex structure in the traditional scheme and the literature scheme are solved.
Description
Technical Field
The present invention relates to a strip transmission line, and more particularly, to a strip transmission line applied to L and S bands.
Background
Transmission lines are the basis for designing microwave components, and the types of transmission lines are various, such as strip lines, waveguides, coaxial lines, microstrip lines, and the like. For microwave components of L-wave guide and S-wave band, coaxial line and microstrip line are not suitable due to their own characteristics, and strip line and wave guide are used more often.
The conventional stripline is composed of an upper ground plate, a lower ground plate and a thin conductor strip. There are two main implementations at present: one is a stripline circuit formed by pasting two layers of printed circuit boards that have been etched. Because the common printed circuit board is thin and the dielectric constant is several times higher than that of air, the conductor strip is very thin, so that the stripline circuit has very high requirement on processing precision and is not beneficial to mass production. If the conductor strip is widened by increasing the thickness of the printed circuit board, the cost of the printed circuit board is high and is not paid; in another common strip circuit form, the upper and lower ground plates of the strip circuit are realized by a metal shell and a metal cover plate which are manufactured by a die-casting process, and the thin conductor strip is manufactured by a metal strip. In order to ensure that the metal strip is positioned in the middle of the cavity formed by the metal shell and the cover plate, the stripline circuit in the form needs to ensure good electromagnetic wave transmission characteristics by adding some additional structural plastic pieces, so that the stripline circuit in the form is troublesome to assemble and low in efficiency.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a strip transmission line applied to L and S wave bands, which is easy to process and low in transmission loss.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
a strip transmission line for L and S bands, comprising: contain metal casing, bottom metal level, medium basic unit, top layer metal level and metallization through-hole, the medium basic unit is fixed at the metal casing inboard, and the bottom metal level is fixed at medium basic unit downside, and the top layer metal level is fixed at medium basic unit upside, and a plurality of metallization through-holes set up in the middle of the medium basic unit and metallization through-hole both ends are connected with bottom metal level and top layer metal level respectively.
Furthermore, a channel is respectively arranged in the middle of the side walls at two sides in the metal shell, and the edges at two sides of the medium base layer are clamped in the channel and fixed.
Furthermore, the metalized through holes are arranged in two rows in the middle of the medium base layer.
Furthermore, one row of the metalized through holes are arranged along the edge of one side of the bottom metal layer and the edge of one side of the top metal layer, namely the circle centers of the metalized through holes are positioned on the edge lines of the bottom metal layer and the top metal layer, and the other row of the metalized through holes are arranged along the edge of the other side of the bottom metal layer and the edge of the other side of the top metal layer.
Furthermore, each row of the metalized through holes are arranged at equal intervals, and the interval between every two adjacent metalized through holes is not more than a quarter wavelength of the central frequency point.
Furthermore, two rows of the metallized through holes are symmetrically arranged on the medium base layer.
Furthermore, two rows of the metallized through holes are arranged on the medium base layer in a staggered mode from left to right, and one metallized through hole in the first row is located on a perpendicular bisector of a connecting line of circle centers of two adjacent metallized through holes in the second row.
Furthermore, the medium base layer is made of Roges 5880 plates, and the bottom metal layer, the top metal layer and the metalized through holes are made of copper materials.
Compared with the prior art, the invention has the following advantages and effects: the invention has the advantages of simple structure, low cost, convenient circuit design and debugging, easier processing and assembly, good electromagnetic wave transmission characteristic and low circuit loss in L wave band and S wave band. The problems of high processing precision requirement, high cost or complex structure in the traditional scheme and the literature scheme are solved.
Drawings
Fig. 1 is a schematic diagram of a strip transmission line of the present invention applied to L and S bands.
Fig. 2 is a disassembled view of the internal structure of a strip transmission line applied to L and S bands according to the present invention.
Detailed Description
The present invention is further illustrated by the following examples, which are illustrative of the present invention and are not to be construed as being limited thereto.
Example 1:
as shown in fig. 1 and 2, the strip transmission line applied to L and S bands of the present invention includes a metal case 1, a bottom metal layer 2, a dielectric base layer 3, a top metal layer 4 and metalized through holes 5, wherein the dielectric base layer 3 is fixed inside the metal case 1, the bottom metal layer 2 is fixed on the lower side of the dielectric base layer 3, the top metal layer 4 is fixed on the upper side of the dielectric base layer 3, a plurality of metalized through holes 5 are disposed in the middle of the dielectric base layer 3, and two ends of each metalized through hole 5 are respectively connected to the bottom metal layer 2 and the top metal layer 4.
The middle of the side walls at two sides in the metal shell 1 is respectively provided with a channel 6, and the edges at two sides of the medium base layer 3 are clamped in the channels 6 and fixed.
The metallized through holes 5 are arranged in two rows in the middle of the dielectric substrate 3. One row of the metallized through holes 5 are arranged along the edge of one side of the bottom metal layer 2 and the top metal layer 4, namely, the circle center of the metallized through holes 5 is positioned on the edge line of the bottom metal layer 2 and the top metal layer 4, and the other row of the metallized through holes 5 is arranged along the edge of the other side of the bottom metal layer 2 and the top metal layer 4. The design of the conductor strip can ensure that the electromagnetic wave characteristic of the strip transmission line is very close to that of the traditional strip transmission line, and the strip transmission line has good electromagnetic wave transmission characteristic and lower insertion loss.
Every row of the metallized through holes 5 are arranged at equal intervals, and the interval between every two adjacent metallized through holes 5 is not more than one-quarter wavelength of the central frequency point. And two rows of metallized through holes 5 are arranged on the dielectric substrate 3 in bilateral symmetry. The medium base layer is made of Roges 5880 plates, and the bottom metal layer, the top metal layer and the metalized through holes are made of copper materials.
Example 2:
the utility model provides a be applied to strip transmission line of L and S wave band, contain metal casing 1, bottom metal level 2, medium basic unit 3, top layer metal level 4 and metallization through-hole 5, medium basic unit 3 is fixed at metal casing 1 inboard, bottom metal level 2 is fixed at 3 downside of medium basic unit, top layer metal level 4 is fixed at 3 upsides of medium basic unit, a plurality of metallization through-holes 5 set up in the middle of medium basic unit 3 and metallization through-hole 5 both ends are connected with bottom metal level 2 and top layer metal level 4 respectively.
The middle of the side walls at two sides in the metal shell 1 is respectively provided with a channel 6, and the edges at two sides of the medium base layer 3 are clamped in the channels 6 and fixed.
The metallized through holes 5 are arranged in two rows in the middle of the dielectric substrate 3. One row of the metallized through holes 5 are arranged along the edge of one side of the bottom metal layer 2 and the top metal layer 4, namely, the circle center of the metallized through holes 5 is positioned on the edge line of the bottom metal layer 2 and the top metal layer 4, and the other row of the metallized through holes 5 is arranged along the edge of the other side of the bottom metal layer 2 and the top metal layer 4. The design of the conductor strip can ensure that the electromagnetic wave characteristic of the strip transmission line is very close to that of the traditional strip transmission line, and the strip transmission line has good electromagnetic wave transmission characteristic and lower insertion loss.
Every row of the metallized through holes 5 are arranged at equal intervals, and the interval between every two adjacent metallized through holes 5 is not more than one-quarter wavelength of the central frequency point. Two rows of metallized through holes 5 are arranged on the medium base layer 3 in a left-right staggered mode, and one metallized through hole in the first row is located on a perpendicular bisector of a connecting line of circle centers of two adjacent metallized through holes in the second row. The two rows of metallized through holes are arranged in a staggered mode, and a stripline circuit with good transmission characteristics can be obtained. When a specific stripline circuit is designed, two arrangement schemes can be combined for use, and the design is more convenient.
The invention realizes the strip transmission line with simple structure, lower cost, easy processing and assembly and low circuit loss through good design, considers the existing processing technology in the industry and the mechanical property of the strip transmission line, and has wide application prospect when being used in L wave band and S wave band.
The above description of the present invention is intended to be illustrative. Various modifications, additions and substitutions for the specific embodiments described may be made by those skilled in the art without departing from the scope of the invention as defined in the accompanying claims.
Claims (4)
1. A strip transmission line for L and S bands, comprising: the metal shell comprises a metal shell body, a bottom metal layer, a medium base layer, a top metal layer and metalized through holes, wherein the medium base layer is fixed on the inner side of the metal shell body; the metalized through holes are arranged in two rows in the middle of the medium base layer; one row of the metalized through holes are arranged along the edge of one side of the bottom metal layer and the top metal layer, namely the circle centers of the metalized through holes are positioned on the edge lines of the bottom metal layer and the top metal layer, and the other row of the metalized through holes are arranged along the edge of the other side of the bottom metal layer and the top metal layer; each row of the metalized through holes are arranged at equal intervals, and the interval between every two adjacent metalized through holes is not more than one quarter wavelength of the central frequency point; the middle of the side walls of the two sides in the metal shell is respectively provided with a channel, and the edges of the two sides of the medium base layer are clamped in the channels and fixed.
2. A strip transmission line for L and S bands according to claim 1, characterized in that: the two rows of the metallized through holes are symmetrically arranged on the medium base layer.
3. A strip transmission line for L and S bands according to claim 1, characterized in that: the two rows of the metallized through holes are arranged on the medium base layer in a staggered mode from left to right, and one metallized through hole in the first row is located on a perpendicular bisector of a connecting line of circle centers of two adjacent metallized through holes in the second row.
4. A strip transmission line for L and S bands according to claim 1, characterized in that: the medium base layer is made of Roges 5880 plates, and the bottom metal layer, the top metal layer and the metalized through holes are made of copper materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811425422.8A CN109585992B (en) | 2018-11-27 | 2018-11-27 | Strip transmission line applied to L and S wave bands |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811425422.8A CN109585992B (en) | 2018-11-27 | 2018-11-27 | Strip transmission line applied to L and S wave bands |
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| Publication Number | Publication Date |
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| CN109585992A CN109585992A (en) | 2019-04-05 |
| CN109585992B true CN109585992B (en) | 2021-03-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811425422.8A Active CN109585992B (en) | 2018-11-27 | 2018-11-27 | Strip transmission line applied to L and S wave bands |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115882187B (en) * | 2023-02-22 | 2023-05-19 | 广东健博通科技股份有限公司 | Side-emitting omnidirectional antenna |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9123983B1 (en) * | 2012-07-20 | 2015-09-01 | Hittite Microwave Corporation | Tunable bandpass filter integrated circuit |
| CN204614906U (en) * | 2015-03-23 | 2015-09-02 | 武汉虹信通信技术有限责任公司 | A kind of multipath integrated dielectric phase shifter |
| CN206490160U (en) * | 2017-03-10 | 2017-09-12 | 成都雷电微力科技有限公司 | A kind of strip transmission line |
| CN108110422A (en) * | 2017-12-08 | 2018-06-01 | 中国船舶重工集团公司第七二四研究所 | A kind of PMI foam medium plate strip lines of low-loss lightweight structure |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9270003B2 (en) * | 2012-12-06 | 2016-02-23 | Anaren, Inc. | Stripline assembly having first and second pre-fired ceramic substrates bonded to each other through a conductive bonding layer |
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2018
- 2018-11-27 CN CN201811425422.8A patent/CN109585992B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9123983B1 (en) * | 2012-07-20 | 2015-09-01 | Hittite Microwave Corporation | Tunable bandpass filter integrated circuit |
| CN204614906U (en) * | 2015-03-23 | 2015-09-02 | 武汉虹信通信技术有限责任公司 | A kind of multipath integrated dielectric phase shifter |
| CN206490160U (en) * | 2017-03-10 | 2017-09-12 | 成都雷电微力科技有限公司 | A kind of strip transmission line |
| CN108110422A (en) * | 2017-12-08 | 2018-06-01 | 中国船舶重工集团公司第七二四研究所 | A kind of PMI foam medium plate strip lines of low-loss lightweight structure |
Non-Patent Citations (1)
| Title |
|---|
| "基于新型空气板线结构的低损耗馈电网络";韦学科等;《现代雷达》;20150930;第37卷(第9期);正文第65页 * |
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Effective date of registration: 20191111 Address after: 226000 Zhongtian Industrial Park, Hekou Town, Rudong, Nantong, Jiangsu Applicant after: Zhongtian Broadband Technology Co., Ltd. Applicant after: Zhongtian Communication Technology Co., Ltd Address before: 226000 Zhongtian Industrial Park, Hekou Town, Rudong, Nantong, Jiangsu Applicant before: Zhongtian Broadband Technology Co., Ltd. |
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