CN112038733A - Microwave transmission system and single-pole twelve-throw coaxial switch - Google Patents
Microwave transmission system and single-pole twelve-throw coaxial switch Download PDFInfo
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- CN112038733A CN112038733A CN202010886327.9A CN202010886327A CN112038733A CN 112038733 A CN112038733 A CN 112038733A CN 202010886327 A CN202010886327 A CN 202010886327A CN 112038733 A CN112038733 A CN 112038733A
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- transmission
- microwave
- pins
- upper cover
- heads
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P1/00—Auxiliary devices
- H01P1/10—Auxiliary devices for switching or interrupting
- H01P1/12—Auxiliary devices for switching or interrupting by mechanical chopper
- H01P1/125—Coaxial switches
Abstract
The utility model relates to a microwave transmission system, including coaxial fixed last lid and lower cavity, the mid-mounting of lower cavity has middle transmission head, a plurality of outer lane transmission heads are installed along the circumferencial direction at the edge of lower cavity, middle transmission head all sets up towards the lid with the input of outer lane transmission head, be equipped with a plurality of push rods that run through self in the last lid, the below of push rod is equipped with the transmission reed, the push rod can independently drive in order to drive the both ends of different transmission reeds overlap joint respectively in the upper end of outer lane transmission head and middle transmission head, the realization is set for the microwave signal of branch and is switched on.
Description
Technical Field
The disclosure belongs to the technical field of radio frequency coaxial switches, and particularly relates to a microwave transmission system and a single-pole twelve-throw coaxial switch.
Background
The radio frequency coaxial switch is used as a microwave passive device, mainly realizes transmission and switching of microwave signals, and is widely applied to the fields of automatic test systems, radars and communication. A microwave input connector and a plurality of microwave output connectors are generally arranged in the single-pole multi-throw coaxial switch; or one microwave output connector, a plurality of microwave input connectors are matched for use, and the corresponding microwave channels are switched on and off by transmission reeds lapped on the microwave input connectors and the microwave output connectors.
The inventor knows that the prior art rarely relates to a single-pole twelve-throw coaxial switch, and the microwave transmission frequency of the related single-pole twelve-throw switch is only up to 12.4GHz, and the microwave signal transmission with higher frequency cannot be realized.
Disclosure of Invention
The microwave transmission system and the single-pole twelve-throw coaxial switch can enable the transmission frequency of the single-pole twelve-throw coaxial switch to reach 18GHz, greatly improve the transmission frequency of the single-pole twelve-throw coaxial switch, and fill up the existing single-pole twelve-throw coaxial switch.
In order to achieve the above object, a first aspect of the present disclosure provides a microwave transmission system, including an upper cover and a lower cavity coaxially fixed, a middle transmission head is installed in the middle of the lower cavity, a plurality of outer ring transmission heads are installed at the edge of the lower cavity along the circumferential direction, the input ends of the middle transmission head and the outer ring transmission heads are both arranged toward the upper cover, a plurality of push rods penetrating through the upper cover are arranged in the upper cover, a transmission reed is arranged below the push rods, the push rods can be independently driven to drive two ends of different transmission reeds to be respectively lapped on the upper ends of the outer ring transmission heads and the middle transmission heads, so as to achieve microwave signal conduction of a set branch;
one end of the transmission reed, which is close to the middle transmission head, is provided with a reduced scale section, the size of the reduced scale section is smaller than the width of a main passage of the transmission reed, and the middle part of the transmission reed is provided with two circular compensation grooves.
Furthermore, the number of the middle transmission heads is one, the number of the outer ring transmission heads is twelve, and the number of the transmission reeds is twelve.
Further, the upper surface of the lower cavity is provided with a plurality of transmission cavities, the transmission cavities are radially arranged along the center of the lower cavity and used for accommodating transmission reeds, and the input ends of the outer ring transmission head and the middle transmission head extend out of the transmission cavities.
Furthermore, the lower end of the push rod is provided with two pins, the bottom ends of the two pins are provided with bulges, the two pins are respectively inserted into the two compensation grooves, and the pins are made of elastic materials; the pins are arranged to: under the condition of no external force, the distance between the two pins is larger than the distance between the two compensation grooves.
Furthermore, the side that two participate in the mutual departure is provided with respectively protruding, and the side that two participate in mutual being close to is provided with the stopper respectively.
Further, the width of the main passage of the transmission reed is 2.9mm, and the width of the reduced scale section is 1.3 mm.
A second aspect of the present disclosure provides a single-pole twelve-throw coaxial switch, including the above-mentioned microwave transmission system, further including an electric power control system and an electromagnetic drive system, the electric power control system can control the power on/off of the electromagnetic drive system, and the electromagnetic drive system can independently control the reciprocating linear motion of any one push rod along the axial direction of the upper cover body.
The beneficial effects of one or more of the above technical solutions are as follows:
1. the middle transmission head is arranged in the center of the lower cavity, the outer ring transmission heads are arranged along the circumferential direction of the lower cavity, so that one middle transmission head can correspond to the outer ring transmission heads, the motion of different push rods can be independently controlled, different transmission reeds can respectively overlap the corresponding outer ring transmission heads and the middle transmission heads, and the conduction and the disconnection of different microwave transmission branches can be completed.
2. The push rod is provided with the pin inserting structure, the transmission reed is provided with the corresponding compensation groove, the pin inserting structure is made of elastic materials, a user compresses two pins to enable the two pins to be inserted into the compensation groove, the elastic pressure and the protrusion of the pin can realize the fixed connection of the push rod and the transmission reed, and the complex operation during the process of adopting other fixed connection modes such as bolts is avoided.
3. The transmission reed in the scheme can be suitable for transmission of 18GHz microwave signals. The width of a main channel of the transmission reed is 2.9mm, 2 circular compensation grooves are formed in the middle of the transmission reed to achieve transmission line impedance matching, and the width section of the channel is narrowed to be 1.3mm near a middle transmission joint, so that transmission of 18GHz microwave signals is achieved.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the application and, together with the description, serve to explain the application and are not intended to limit the application.
FIG. 1 is a schematic view of a push rod used in conjunction with a transfer reed in an embodiment of the present disclosure;
FIG. 2 is a schematic structural diagram of a putter in an embodiment of the present disclosure;
FIG. 3 is a schematic structural diagram of a transmission reed arranged in a transmission cavity in the embodiment of the present disclosure;
FIG. 4 is a schematic structural diagram of a microwave transmission system according to an embodiment of the present disclosure;
FIG. 5 is an enlarged view of the structure of portion A in FIG. 4;
FIG. 6 is a top view of a lower chamber in an embodiment of the present disclosure;
fig. 7 is a schematic structural diagram of a single-pole-twelve-throw switch in an embodiment of the disclosure.
In the figure: 1. a power control system; 2. an electromagnetic drive system; 3. a microwave transmission system; 31. a transmission reed; 32. a push rod; 33. an outer ring inner conductor; 34. a lower cavity; 35. a middle inner conductor; 36. a transfer chamber; 361. A compensation groove; 362. a mating groove; 311. a pin; 312. a main body; 313. a protrusion; 314. and a limiting block.
Detailed Description
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
Example 1
As shown in fig. 1 to 6, the present embodiment provides a microwave transmission system 3, including an upper cover and a lower cover 34 coaxially fixed, a middle transmission head is installed in the middle of the lower cover 34, a plurality of outer ring transmission heads are installed at the edge of the lower cover 34 along the circumferential direction, the input ends of the middle transmission head and the outer ring transmission heads are both disposed toward the upper cover, a plurality of push rods 32 penetrating through the upper cover are disposed in the upper cover, a transmission reed 31 is disposed below the push rods 32, the push rods 32 can be independently driven to drive two ends of different transmission reeds 31 to be respectively overlapped at the upper ends of the outer ring transmission heads and the middle transmission heads, so as to achieve microwave signal conduction of a set branch.
One end of the transmission reed, which is close to the middle transmission head, is provided with a reduced scale section, the size of the reduced scale section is smaller than the width of a main passage of the transmission reed, and the middle part of the transmission reed is provided with two circular compensation grooves.
It can be understood that the middle transmission head and the outer transmission head in this embodiment are both microwave transmission heads, and the microwave transmission heads should have an inner conductor and an outer conductor that are sleeved with each other.
Specifically, the number of the middle transmission heads is one, the number of the outer ring transmission heads is twelve, and the number of the transmission reeds 31 is twelve.
It can be understood that, in order to implement the single-pole twelve-throw switch function, in this embodiment, the number of the transmission reeds and the outer ring transmission heads is twelve, wherein the middle transmission head is the input connector, and the outer ring transmission head is the output connector, or vice versa.
Specifically, the upper surface of the lower cavity 34 is provided with a plurality of transmission cavities 36, the transmission cavities 36 are radially arranged along the center of the lower cavity 34, the transmission cavities 36 are used for accommodating the transmission reeds 31, and the input ends of the outer ring transmission head and the middle transmission head extend out of the transmission cavities 36.
Specifically, the lower end of the push rod 32 is provided with two pins 311, the bottom ends of the two pins 311 are provided with protrusions 213, the two pins are respectively inserted into the two compensation grooves, and the pins 311 are made of elastic materials; the pins 311 are arranged to: the distance between the two pins 311 is greater than the distance between the two compensation grooves 361 without an external force.
Specifically, after the plugging is finished, the pins protrude downwards from the transmission reed, two matching grooves 362 are arranged in each transmission cavity to accommodate the pins protruding outwards, and the projection of each matching groove 362 in the motion direction of the push rod is overlapped with the projection of each compensation groove.
Specifically, the protrusions 213 are respectively disposed on the side surfaces of the two pins 311 departing from each other, and the limit blocks 314 are respectively disposed on the side surfaces of the two pins 311 approaching each other.
It can be understood that the limiting block can limit the elastic deformation between the two pins, and the breakage of the pins caused by excessive force applied by an operator is avoided.
Specifically, the width of the main channel of the transmission reed is 2.9mm, and the width of the reduced scale section is 1.3 mm.
Specifically, the central axis of the push rod 32, the central axis of the upper cover plate, the central axis of the lower cavity 34 and the central axis of the middle transmission head are coaxially arranged.
Specifically, an elastic resetting piece is arranged between the push rod 32 and the upper cover plate, and the elastic resetting piece can provide driving force when the push rod 32 is far away from the lower cavity 34.
It is understood that the elastic return element may be a spring structure in the present embodiment, and in other embodiments, a return spring or the like may also be used.
Example 2
As shown in fig. 7, the present embodiment provides a single-pole twelve-throw coaxial switch, including the microwave transmission system 3 described in embodiment 1, and further including a power control system 1 and an electromagnetic drive system 2, where the power control system 1 can control the power on/off of the electromagnetic drive system 2, and the electromagnetic drive system 2 can independently control the reciprocating linear motion of any one of the push rods 32 along the axial direction of the upper cover body.
The working principle is as follows: since twelve paths of the single-pole twelve-throw coaxial switch are the same, the first path is taken as an example for description: when a first path of the twelve paths of the switch is powered on, the relay of the first path in the electromagnetic driving system 2 is switched in a rotating mode, so that the first path of the relay presses down the push rod 32 assembly of the first path, the transmission reed 31 is in lap joint with the middle inner conductor and the first path of the outer ring inner conductor 33, the first path of microwave transmission path is conducted at the moment, signals are input from the middle radio frequency connector, and the first path of the outer ring radio frequency connector is output. When the switch is not powered on, the push rod 32 assembly moves upwards under the action of the reset elastic sheet, the transmission reed 31 is disconnected with the middle inner conductor and the outer ring inner conductor 33, and at the moment, the single-pole twelve-throw coaxial switch keeps the twelve-way path to be completely disconnected.
Although the present disclosure has been described with reference to specific embodiments, it should be understood that the scope of the present disclosure is not limited thereto, and those skilled in the art will appreciate that various modifications and changes can be made without departing from the spirit and scope of the present disclosure.
Claims (10)
1. A microwave transmission system is characterized by comprising an upper cover body and a lower cavity which are coaxially fixed, wherein the middle part of the lower cavity is provided with a middle transmission head, the edge of the lower cavity is provided with a plurality of outer ring transmission heads along the circumferential direction, the input ends of the middle transmission head and the outer ring transmission heads are both arranged towards the upper cover body, a plurality of push rods penetrating through the upper cover body are arranged in the upper cover body, transmission reeds are arranged below the push rods, and the push rods can be independently driven to drive the two ends of different transmission reeds to be respectively lapped on the upper ends of the outer ring transmission heads and the middle transmission heads, so that the microwave signal conduction of a set branch is;
one end of the transmission reed, which is close to the middle transmission head, is provided with a reduced scale section, the size of the reduced scale section is smaller than the width of a main passage of the transmission reed, and the middle part of the transmission reed is provided with two circular compensation grooves.
2. The microwave transmission system according to claim 1, wherein the number of the intermediate transmission heads is one, the number of the outer transmission heads is twelve, and the number of the transmission reeds is twelve.
3. The microwave transmission system according to claim 1, wherein the upper surface of the lower chamber has a plurality of transmission cavities radially arranged along a center of the lower chamber, the transmission cavities are adapted to receive transmission reeds, and input ends of the outer transmission head and the middle transmission head extend from the transmission cavities.
4. The microwave transmission system according to claim 1, wherein the push rod has two pins at the lower end thereof, the bottom ends of the two pins having protrusions, the two pins being inserted into the two compensation slots, respectively, the pins being made of an elastic material; the pins are arranged to: under the condition of no external force, the distance between the two pins is larger than the distance between the two compensation grooves.
5. The microwave transmission system according to claim 4, wherein the protrusions are provided on the sides of the two pins facing away from each other, and the stoppers are provided on the sides of the two pins facing toward each other.
6. The microwave transmission system according to claim 1, wherein the transmission reed main passage has a width of 2.9mm, and the reduced-scale section has a width of 1.3 mm.
7. The microwave transmission system according to claim 1, wherein the central axis of the push rod, the central axis of the upper cover plate, the central axis of the lower cavity and the central axis of the middle transmission head are coaxially arranged.
8. The microwave transmission system according to claim 1, wherein an elastic reset member is disposed between the push rod and the upper cover plate, and the elastic reset member is capable of providing a driving force when the push rod is away from the lower cavity.
9. A single pole twelve throw coaxial switch comprising the microwave transmission system of any of claims 1 to 7.
10. The single-pole twelve-throw coaxial switch of claim 9, further comprising an electric control system and an electromagnetic drive system, wherein the electric control system can control the on/off of the electromagnetic drive system, and the electromagnetic drive system can independently control the reciprocating linear motion of any one of the push rods along the axial direction of the upper cover body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010886327.9A CN112038733A (en) | 2020-08-28 | 2020-08-28 | Microwave transmission system and single-pole twelve-throw coaxial switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010886327.9A CN112038733A (en) | 2020-08-28 | 2020-08-28 | Microwave transmission system and single-pole twelve-throw coaxial switch |
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| Publication Number | Publication Date |
|---|---|
| CN112038733A true CN112038733A (en) | 2020-12-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010886327.9A Pending CN112038733A (en) | 2020-08-28 | 2020-08-28 | Microwave transmission system and single-pole twelve-throw coaxial switch |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104183423A (en) * | 2014-08-13 | 2014-12-03 | 中国电子科技集团公司第四十一研究所 | Miniaturized high-frequency single-pole six-throw coaxial mechanical and electrical switch |
| EP3048664A1 (en) * | 2015-01-23 | 2016-07-27 | Spinner GmbH | Coaxial rotary switch with capacitive coupling contacts for low passive intermodulation connection |
| CN108253606A (en) * | 2018-03-19 | 2018-07-06 | 奥克斯空调股份有限公司 | Snap component and air conditioner |
| CN110739509A (en) * | 2019-10-29 | 2020-01-31 | 中电科仪器仪表有限公司 | high-frequency microwave transmission system and single-pole ten-throw coaxial switch |
-
2020
- 2020-08-28 CN CN202010886327.9A patent/CN112038733A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104183423A (en) * | 2014-08-13 | 2014-12-03 | 中国电子科技集团公司第四十一研究所 | Miniaturized high-frequency single-pole six-throw coaxial mechanical and electrical switch |
| EP3048664A1 (en) * | 2015-01-23 | 2016-07-27 | Spinner GmbH | Coaxial rotary switch with capacitive coupling contacts for low passive intermodulation connection |
| CN108253606A (en) * | 2018-03-19 | 2018-07-06 | 奥克斯空调股份有限公司 | Snap component and air conditioner |
| CN110739509A (en) * | 2019-10-29 | 2020-01-31 | 中电科仪器仪表有限公司 | high-frequency microwave transmission system and single-pole ten-throw coaxial switch |
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Application publication date: 20201204 |
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