CN111755921A - Coaxial connector with air ring - Google Patents
Coaxial connector with air ring Download PDFInfo
- Publication number
- CN111755921A CN111755921A CN202010783994.4A CN202010783994A CN111755921A CN 111755921 A CN111755921 A CN 111755921A CN 202010783994 A CN202010783994 A CN 202010783994A CN 111755921 A CN111755921 A CN 111755921A
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- China
- Prior art keywords
- coaxial
- conductor
- inner conductor
- outer conductor
- medium
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R24/00—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
- H01R24/38—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure having concentrically or coaxially arranged contacts
- H01R24/40—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure having concentrically or coaxially arranged contacts specially adapted for high frequency
- H01R24/42—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure having concentrically or coaxially arranged contacts specially adapted for high frequency comprising impedance matching means or electrical components, e.g. filters or switches
- H01R24/44—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure having concentrically or coaxially arranged contacts specially adapted for high frequency comprising impedance matching means or electrical components, e.g. filters or switches comprising impedance matching means
-
- 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
- H01P3/081—Microstriplines
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R24/00—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
- H01R24/38—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure having concentrically or coaxially arranged contacts
- H01R24/40—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure having concentrically or coaxially arranged contacts specially adapted for high frequency
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- Coupling Device And Connection With Printed Circuit (AREA)
Abstract
The invention discloses a coaxial connector with an air ring, which comprises an inner conductor, a medium and an outer conductor, wherein the left side of the inner conductor is positioned in the medium, the left side of the outer conductor surrounds the medium, an air ring is formed between the outer conductor on the right side of the medium and the inner conductor, the left end of the inner conductor is connected with an external probe, the connector is arranged in a module shell, the probe is connected on a microstrip transmission line through crimping, welding or bonding, and the external probe is interconnected with other modules or connectors. The reliability of the microwave module with the bare chip inside is improved.
Description
Technical Field
The invention relates to the field of antennas and microwaves, in particular to a coaxial connector with an air ring.
Background
In the microwave module, the radio frequency coaxial connector is assembled on a shell of the microwave module, so that transmission of radio frequency signals inside and outside the microwave module is realized. Due to the mismatch in the sizes of the rf coaxial connector and the microwave ic, an interposer is required to interconnect the rf coaxial connector and the microwave ic. The patch panel typically employs a microstrip circuit having a characteristic impedance of 50 ohms, and the probe of the rf coaxial connector is interconnected with one microstrip end of the patch panel, as shown in fig. 1.
The assembly module 100 shown in fig. 1 comprises a module housing 101, a radio frequency coaxial connector 102, a patch panel dielectric layer 107, and a microstrip line 108 with a characteristic impedance of 50 ohms on the patch panel. The radio frequency coaxial connector 102 comprises an external interconnection unit 104, a coaxial portion mounted in the housing 101, and a probe 105, wherein the probe 105 is connected to the microstrip line 108 by soldering, bonding or crimping.
The assembly profile of a conventional rf coaxial connector is shown in fig. 2, the coaxial section comprising an inner conductor connected to a probe 105, a dielectric 103, such as glass, and an outer conductor 106, the rf coaxial section having a characteristic impedance of 50 ohms. Conventional coaxial connectors interconnect with the microstrip 108, which introduces additional parasitic parameters due to transmission discontinuities. With the increase of the working frequency, the influence of the parasitic parameters can be increased, so that the return loss is deteriorated in the millimeter wave frequency band, and the transmission loss is increased until the application requirements cannot be met. In order to improve the performance of the conventional coaxial connector at high frequency, two methods are generally used, namely, the characteristic impedance of a microstrip line of an adapter plate is changed to counteract the influence of parasitic parameters caused by interconnection; the other is that an air coaxial matching section is added on a mounting shell of the connector to counteract the influence of parasitic parameters caused by interconnection of the probe and the microstrip. For the former method, with the difference of the material and the thickness of the adapter plate, the characteristic impedance of the microstrip line needs to be changed to be different, and a unified standard does not exist; for the latter, because additional processing needs to be added on the mounting shell, on one hand, the processing difficulty is increased, and on the other hand, for millimeter wave frequency band application, the assembling precision requirement of the connector is strict, which brings difficulty to large-scale batch production.
From the above, the performance of the conventional coaxial connector and the microstrip interconnection is deteriorated due to the influence of parasitic parameters caused by discontinuity, and the requirements of millimeter wave frequency band performance and large-scale batch production cannot be met.
Disclosure of Invention
The invention aims to provide a coaxial connector with an air ring to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
the utility model provides a take air ring coaxial connector, includes inner conductor, medium and outer conductor, inner conductor left side part is located inside the medium, outer conductor left side part encircles the medium, forms the air ring between medium right side outer conductor and the inner conductor, and the inner conductor left end links to each other with outside probe, and the connector is installed in the module casing, and the probe passes through crimping, welding or adhesive bonding connection on the microstrip transmission line, and the microstrip transmission line is installed on the keysets, and outside probe is interconnected with other modules or connectors.
As a further scheme of the invention: and a metal ring is arranged in the coaxial part of the air medium of the outer conductor, the metal ring is assembled in the outer conductor in a compression joint mode, and an air ring is formed between the metal ring and the inner conductor.
As a further scheme of the invention: the right end of the inner conductor forms a probe through an air ring.
As a further scheme of the invention: the medium is an insulating medium and is made of glass, and the inner conductor, the medium and the outer conductor can be sintered into a whole.
As a further scheme of the invention: the top and the bottom of the partial inner wall of the outer conductor surrounding the medium are respectively provided with two inner bosses along the direction parallel to the inner conductor, and the inner bosses and the outer conductor are integrated.
As a further scheme of the invention: the top and the bottom of the partial outer wall of the inner conductor in the medium are respectively provided with two outer bosses along the direction parallel to the inner conductor, and the outer bosses and the inner conductor are integrated.
As a further scheme of the invention: the medium and the corresponding part of the inner conductor and the outer conductor form a glass medium coaxial line, and the air ring and the corresponding part of the inner conductor and the outer conductor form an air medium coaxial line.
As a further scheme of the invention: the outer conductor of the air dielectric coaxial part is suspended to form an annular structure, the annular structure and the outer conductor of the glass dielectric coaxial part are integrally processed to form the annular structure, or the annular structure is formed by assembling a single metal ring and embedding the outer conductor of the glass dielectric coaxial part.
As a further scheme of the invention: the characteristic impedance of the coaxial structure of the air medium coaxial part and the glass medium coaxial part is about 50 ohms.
Compared with the prior art, the invention has the beneficial effects that: the invention has simple form, improves the high-frequency performance of the interconnection of the connector and the microstrip, particularly improves the transmission characteristic in the Ka frequency band, reduces the return loss, the transmitting standing wave ratio at the high frequency end is obviously improved when the connector is interconnected with a microstrip transmission line, the transmitting standing wave ratio is less than 1.5 within the range of 50GHz, the processing difficulty of the installation shell of the connector working in a millimeter wave frequency band is simplified, the connector is easy to assemble, is suitable for large-scale low-cost batch production, and the connector achieves the effect of air sealing by integrally sintering and forming a medium, an inner conductor and an outer conductor, the signal transmission with the outside can be realized under the airtight condition inside the microwave module, which will improve the reliability of the microwave module containing the bare chip inside, the coaxial connector with the air ring is assembled into the outer conductor through the compression joint of the metal ring, so that the difficulty of controlling and filling the medium when the medium, the inner conductor and the outer conductor are integrally sintered and formed is reduced.
Drawings
Fig. 1 is a schematic structural diagram of a conventional rf coaxial connector.
Fig. 2 is a schematic cross-sectional structure diagram of a conventional rf coaxial connector.
Fig. 3 is a schematic view of a coaxial connector with an air ring.
FIG. 4 is a schematic cross-sectional view of a coaxial connector with an air ring.
Fig. 5 is a schematic diagram of another expression of the coaxial connector with the air ring.
Fig. 6 is a schematic diagram of another expression of the coaxial connector with the air ring.
Fig. 7 is a graph comparing simulated standing waves of the coaxial connector with the air ring and the interconnection of the conventional coaxial connector and the interposer.
In the figure: module housing 201, connector 202, dielectric 203, outer probe 204, inner conductor 205, outer conductor 206, patch panel 207, microstrip transmission line 208, air ring 209, probe 210, metal ring 211, inner boss 212, outer boss 213.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, only for the convenience of description of the present invention and for simplicity of description, rather than to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore, it should be noted that the terms "mounted" and "connected" should be interpreted broadly, for example, the term "may be used in the present invention to refer to either a fixed connection, a detachable connection, a mechanical connection, an indirect connection via an intermediate medium, or an electrical connection.
Example 1
Referring to fig. 3-4, in an embodiment of the present invention, a coaxial connector with an air ring includes an inner conductor 205, a dielectric 203, and an outer conductor 206, a left portion of the inner conductor 205 is located inside the dielectric 203, a left portion of the outer conductor 206 surrounds the dielectric 203, the dielectric 203 is an insulating dielectric, the inner conductor 205, the dielectric 203, and the outer conductor 206 may be sintered into a whole to obtain an airtight effect of the connector, so that signal transmission with the outside under an airtight condition inside a microwave module may be achieved, which may improve reliability of the microwave module including a bare chip inside, the outer conductor 206 surrounds a top portion and a bottom portion of an inner wall of the dielectric 203 and is respectively provided with two inner bosses 212 along a direction parallel to the inner conductor 205, the inner bosses 212 are integrated with the outer conductor 206, the top portion and the bottom portion of an outer wall of the inner conductor 205 inside the dielectric 203 are respectively provided with two outer bosses 213 along a direction parallel to the inner conductor 205, the outer boss 213 and the inner conductor 205 are integrated, the arrangement of the inner boss 212 and the outer boss 213 increases the contact area among the outer conductor 206, the medium 203 and the inner conductor 205, the connection is tighter, the outer conductor 206, the medium 203 and the inner conductor 205 are not easy to damage after sintering and forming, the service life of the connector is prolonged, an air ring 209 is formed between the outer conductor 206 and the inner conductor 205 at the right side of the medium 203, the right end of the inner conductor 205 forms a probe 210 through the air ring 209, the left end of the inner conductor 205 is connected with the outer probe 204, the medium 203 and the corresponding part of the inner conductor 205 and the outer conductor 206 form a glass medium coaxial, the air ring 209 and the corresponding part of the inner conductor 205 and the outer conductor 206 form an air medium coaxial, the characteristic impedance of the coaxial structure of the air medium coaxial part and the glass medium coaxial part is about 50 ohms, the outer conductor 206 of the air medium coaxial part is suspended to form a, the ring structure is integrally formed with the outer conductor 206 of the glass dielectric coaxial portion, or the ring structure is a separate metal ring fitted with the outer conductor 206 embedded in the glass dielectric coaxial portion, the connector 202 is mounted in the module housing 201, the probe 210 is connected to the microstrip transmission line 208 by crimping, welding or bonding, the microstrip transmission line 208 is mounted on the interposer 207, and the external probe 204 is interconnected with other modules or connectors.
Example 2
Referring to fig. 5-6, in the embodiment of the present invention, a metal ring 211 is further included, the metal ring 211 is installed in the air dielectric coaxial portion of the outer conductor 206, the metal ring 211 is press-fitted into the outer conductor 206, which reduces difficulty in controlling filling of glass dielectric during sintering for a connector integrally sintered by using glass dielectric, and an air ring 209 is formed between the metal ring 211 and the inner conductor 205 of the coaxial connector with the air ring.
Referring to fig. 7, curves 702 and 704 are respectively a comparison of the simulation results of the transmitting standing wave ratio of the coaxial connector with air ring and the conventional connector without air ring according to the present invention, and it can be seen from the figure that the transmitting standing wave ratio at the high frequency end is significantly improved when the coaxial connector with air ring according to the present invention is interconnected with a microstrip transmission line, and the transmitting standing wave ratio is less than 1.5 within a range of 50 GHz.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.
Claims (9)
1. The coaxial connector with the air ring comprises an inner conductor (205), a medium (203) and an outer conductor (206), and is characterized in that the left side part of the inner conductor (205) is located inside the medium (203), the left side part of the outer conductor (206) surrounds the medium (203), an air ring (209) is formed between the outer conductor (206) and the inner conductor (205) on the right side of the medium (203), the left end of the inner conductor (205) is connected with an external probe (204), the connector (202) is installed in a module shell (201), the probe (210) is connected to a microstrip transmission line (208) through crimping, welding or bonding, and the microstrip transmission line (208) is installed on a patch board (207).
2. The coaxial connector with air ring according to claim 1, characterized in that a metal ring (211) is mounted in the air dielectric coaxial part of the outer conductor (206), the metal ring (211) is press-fitted into the outer conductor (206), and an air ring (209) is formed between the metal ring (211) and the inner conductor (205).
3. The coaxial connector with air ring according to claim 1 or 2, characterized in that the right end of the inner conductor (205) forms a probe (210) through the air ring (209).
4. The coaxial connector with the air ring according to claim 1 or 2, characterized in that the dielectric (203) is an insulating dielectric and is made of glass, and the inner conductor (205), the dielectric (203) and the outer conductor (206) can be sintered into a whole.
5. The coaxial connector with the air ring according to claim 4, wherein the outer conductor (206) surrounds the dielectric (203) and is provided with two inner bosses (212) at the top and the bottom of the partial inner wall in the direction parallel to the inner conductor (205), and the inner bosses (212) are formed integrally with the outer conductor (206).
6. The coaxial connector with air ring according to claim 4, characterized in that the inner conductor (205) is provided with two outer bosses (213) at the top and bottom of the partial outer wall in the medium (203) along the direction parallel to the inner conductor (205), and the outer bosses (213) are integrated with the inner conductor (205).
7. The coaxial connector with the air ring according to claim 1 or 2, characterized in that the dielectric (203) forms a glass dielectric coaxial with the corresponding parts of the inner conductor (205) and the outer conductor (206), and the air ring (209) forms an air dielectric coaxial with the corresponding parts of the inner conductor (205) and the outer conductor (206).
8. The coaxial connector with air ring according to claim 5, wherein the outer conductor (206) of the air dielectric coaxial portion is suspended to form a ring structure, the ring structure is integrally formed with the outer conductor (206) of the glass dielectric coaxial portion, or the ring structure is a separate metal ring assembly embedded in the outer conductor (206) of the glass dielectric coaxial portion.
9. The coaxial connector with air ring according to claim 5, wherein the characteristic impedance of the coaxial structure of the two parts of the coaxial structure of the air medium and the glass medium is about 50 ohms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010783994.4A CN111755921A (en) | 2020-08-06 | 2020-08-06 | Coaxial connector with air ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010783994.4A CN111755921A (en) | 2020-08-06 | 2020-08-06 | Coaxial connector with air ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111755921A true CN111755921A (en) | 2020-10-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010783994.4A Pending CN111755921A (en) | 2020-08-06 | 2020-08-06 | Coaxial connector with air ring |
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| Country | Link |
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| CN (1) | CN111755921A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113972521A (en) * | 2021-12-27 | 2022-01-25 | 中国电子科技集团公司第二十九研究所 | Center contact, connector and connector center contact crimping end structure |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201508977U (en) * | 2009-10-22 | 2010-06-16 | 西安金波科技有限责任公司 | Low-loss high-frequency glass media insulator |
| CN203351805U (en) * | 2013-08-14 | 2013-12-18 | 安徽蓝麦通信科技有限公司 | Window type cable connector |
| CN106785739A (en) * | 2016-12-29 | 2017-05-31 | 中国电子科技集团公司第三十八研究所 | A kind of radio frequency (RF) coaxial connector and microwave transmission structure |
| CN108054525A (en) * | 2017-11-21 | 2018-05-18 | 北京无线电计量测试研究所 | A kind of coaxial connector jack |
| CN110676551A (en) * | 2019-09-23 | 2020-01-10 | 博微太赫兹信息科技有限公司 | Microstrip coaxial conversion structure with air cavity and interconnection method thereof |
-
2020
- 2020-08-06 CN CN202010783994.4A patent/CN111755921A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201508977U (en) * | 2009-10-22 | 2010-06-16 | 西安金波科技有限责任公司 | Low-loss high-frequency glass media insulator |
| CN203351805U (en) * | 2013-08-14 | 2013-12-18 | 安徽蓝麦通信科技有限公司 | Window type cable connector |
| CN106785739A (en) * | 2016-12-29 | 2017-05-31 | 中国电子科技集团公司第三十八研究所 | A kind of radio frequency (RF) coaxial connector and microwave transmission structure |
| CN108054525A (en) * | 2017-11-21 | 2018-05-18 | 北京无线电计量测试研究所 | A kind of coaxial connector jack |
| CN110676551A (en) * | 2019-09-23 | 2020-01-10 | 博微太赫兹信息科技有限公司 | Microstrip coaxial conversion structure with air cavity and interconnection method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113972521A (en) * | 2021-12-27 | 2022-01-25 | 中国电子科技集团公司第二十九研究所 | Center contact, connector and connector center contact crimping end structure |
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Application publication date: 20201009 |
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