Surface mount microwave mechanical switch

Abstract

The application relates to a surface-mounted microwave mechanical switch which adopts a coaxial transmission line matched with a rectangular transmission line, so that the influence of the environment on signal transmission is reduced when the two are connected and data transmission is performed, the impedance is more continuous in a high-frequency band, the volume of the device can be reduced, meanwhile, one end of a guide medium is pressed, the other end is synchronously moved as a direct driving force for the action of the rectangular transmission line, and the two driving rod assemblies are driven to move in opposite directions by electromagnetic driving, compared with existing elastic swing arms, the guide medium does not produce shaking when the device shakes or reciprocates, so that the stability of signals during switching transmission is improved, and when the two driving rod assemblies move away from each other, the damping piece is pulled and dragged, so that the speed of the rectangular transmission line and the coaxial transmission line assembly is reduced when they contact each other, and the impact force is smaller.

Description

Technical Field

[0001] This application relates to the field of microwave mechanical switch technology, and in particular to a surface-mount microwave mechanical switch. Background Technology

[0002] Currently, existing microwave mechanical switches use rectangular transmission lines in the radio frequency (RF) section to reduce size and volume. During connection, the RF signal is transmitted by connecting the rectangular transmission line to the microstrip line of the user's RF board.

[0003] The related technology proposes a single-pole double-throw coplanar waveguide-type radio frequency mechanical switch structure, which replaces the circular coaxial transmission line and rectangular transmission line of the traditional radio frequency mechanical switch with the microstrip surface of the coplanar waveguide structure, thereby reducing the size of the switch to a certain extent.

[0004] However, in practice, it has been found that this method of using two rectangular transmission lines in contact to transmit signals requires ensuring that the characteristic impedance of the two rectangular transmission lines matches the load impedance. In particular, since the surface of the rectangular transmission lines is exposed to the air, it is more susceptible to environmental interference, which can lead to poor impedance matching at high frequencies. At the same time, existing microwave mechanical switches generally use elastic swing arms to switch the circuit on and off. During the reciprocating switching process, due to the frequent movements, the swing arm itself undergoes elastic resonance. When the switch contacts are closed or opened, they bounce, resulting in multiple false contacts. Summary of the Invention

[0005] This application provides a surface-mount microwave mechanical switch that can solve the problems of poor impedance matching and insufficient impedance continuity in the high-frequency band of existing microwave mechanical switches that use two rectangular transmission lines for signal transmission. At the same time, the internal elastic swing arm will bounce, causing signal transmission malfunctions.

[0006] The technical solution of this application is as follows: A surface-mount microwave mechanical switch, comprising:

[0007] A metal carrier plate, on which a coaxial transmission line assembly is disposed, with both ends of the coaxial transmission line assembly penetrating the metal carrier plate;

[0008] A connector is assembled on the upper surface of the metal carrier plate. The connector has a communicating cavity extending along the length of the metal carrier plate. Two outlets communicating with the communicating cavity are respectively provided at both ends of the upper surface of the communicating cavity. The communicating cavity is filled with a guiding medium. Each outlet is sealed with a drive rod assembly that can move in the vertical direction. One end of the drive rod assembly extends into the outlet, and the other end is provided with a rectangular transmission line. One end of the coaxial transmission line assembly can communicate with the rectangular transmission line, and the other end is welded to the user radio frequency board. A damping element is provided between the two drive rod assemblies.

[0009] An electromagnetic drive device is disposed on the side of the connector away from the metal carrier plate. The electromagnetic drive device can drive the rectangular transmission line on one set of drive rod assemblies to move closer to the coaxial transmission line assembly, and drive the rectangular transmission line on another set of drive rod assemblies away from the coaxial transmission line assembly.

[0010] By adopting the above scheme, using a coaxial transmission line in conjunction with a rectangular transmission line, the influence of the environment on signal transmission is reduced when the two are connected and transmitting data. The impedance is more continuous in the high-frequency band, and the size of the device can be reduced. At the same time, the guide medium, when one end is squeezed, moves synchronously at the other end as the direct driving force for the rectangular transmission line. This, combined with electromagnetic drive, moves the two drive rod assemblies in opposite directions, allowing the device to connect a single loop in one operation. Compared with existing elastic swing arms, the guide medium does not vibrate when the device shakes or reciprocates, thus improving the stability of the signal during switching transmissions. Furthermore, when the two drive rod assemblies move away from each other, they pull and stretch the damping element, reducing the speed and impact force when the rectangular transmission line and the coaxial transmission line assembly come into contact.

[0011] In one embodiment of this application, the surface-mount microwave mechanical switch further includes a support frame, the support frame having an assembly gap inside, and the connector located in the assembly gap.

[0012] By adopting the above technical solution, the electromagnetic drive device is supported by a support frame, while providing a certain space for the movement of the connector, making it possible to connect a single circuit in the future, and avoiding spatial interference.

[0013] In one embodiment of this application, the support frame is a metal component, which is mounted on the upper surface of the metal carrier plate to shield against signal interference.

[0014] By adopting the above technical solution, and by setting the support frame as a metal component and connecting it to the metal carrier plate, the device can provide a reference ground for microwave signals during microwave signal transmission, ensuring stable signal transmission. At the same time, the metal ground plate also serves as a shield, which can reduce the impact of external electromagnetic interference on signal transmission and improve signal integrity and system stability.

[0015] In one embodiment of this application, the coaxial transmission line assembly includes:

[0016] Input transmission line;

[0017] The number of output transmission lines is set to two, and they are respectively located on both sides of the input transmission line. The input transmission line and the two output transmission lines are spaced apart along the length direction of the metal carrier plate to form two transmission gaps. One end of the input transmission line and the output transmission line are electrically connected to the user radio frequency board.

[0018] By adopting the above technical solution, two output transmission lines and one input transmission line are set up to form two loops. The signal can be transmitted into the device from the input transmission line, and after passing through the rectangular transmission line, it can be exported from the coaxial output transmission line for signal import and export.

[0019] In one embodiment of this application, the two sets of drive rod assemblies are respectively disposed on the same side of the transmission gap, and the drive rod assembly includes:

[0020] A piston rod, one end of which extends into the outlet and slides to seal with the communicating cavity, and the other end extends to the outside of the outlet;

[0021] A connecting block, one side of which is fixedly connected to the other end of the piston rod, and a magnetic block is fixedly connected to the other side of the connecting block;

[0022] A connecting rod, one end of which is disposed on the side of the connecting block near the coaxial transmission line assembly, and the other end is connected and fixed to the rectangular transmission line. The rectangular transmission line extends along the length of the metal carrier plate and is located above the other end of the input transmission line and the output transmission line, and is used to connect the input transmission line and the output transmission line located on both sides of the transmission gap.

[0023] By adopting the above scheme, when transmitting signals, the electromagnetic drive device can be powered on to drive the magnetic block on one of the connecting blocks, thereby driving one of the drive rod assemblies to move. Due to the force transmission through the guide medium, the other drive rod assembly moves in the opposite direction, thus ensuring that within the same action, the loop of a coaxial transmission line assembly is connected by the rectangular transmission line. At the same time, the difference in gravity between the guide medium in the two outlets and the piston rod itself serves as the power for the drive rod assembly to reset after the electromagnetic drive device is powered off, thus avoiding the drive rod assembly from shaking.

[0024] In one embodiment of this application, the projected area of ​​one end of the rectangular transmission line on the input transmission line is not greater than half of the cross-sectional area of ​​the input transmission line, and the projected area of ​​the other end of the rectangular transmission line on the output transmission line is not greater than half of the cross-sectional area of ​​the output transmission line.

[0025] By adopting the above scheme, the contact area between the rectangular transmission line and the coaxial transmission line assembly in the connected loop is limited, thereby making the connection more stable and the signal transmission effect better when the device is connected, and preventing spatial interference between the two rectangular transmission lines.

[0026] In one embodiment of this application, the electromagnetic drive device includes:

[0027] A drive housing, which is mounted on the support frame;

[0028] Two electromagnetic coils are installed at intervals inside the drive housing and are respectively positioned above the two drive rod assemblies.

[0029] By adopting the above scheme, an electromagnetic force is generated on the magnetic block by energizing an electromagnetic coil, thereby driving two drive rod assemblies with magnetic blocks to perform linked actions, so as to realize the connection of a single circuit in the device at the same time.

[0030] The metal carrier plate also includes a support connector, which is disposed outside the coaxial transmission line assembly. The coaxial transmission line assembly is fixedly assembled to the metal carrier plate through the support connector.

[0031] By adopting the above solution, the coaxial transmission line is fixed with a support connector, making it more stable when it passes through the carrier board and connects to the rectangular transmission line and the user RF board.

[0032] In one embodiment of this application, the drive rod assembly further includes an elastic rope disposed between the two connecting blocks, with both ends of the elastic rope connected to the sides of the two connecting blocks that are close to each other.

[0033] In one embodiment of this application, the length S of the connecting rope and the distance D between the projections of the two connecting blocks on the horizontal plane satisfy: D <S。

[0034] By adopting the above scheme, using an elastic rope and connecting it between the two connecting blocks, the elastic rope can be straightened when the connecting block approaches the connecting cavity, that is, when the rectangular transmission line is about to contact the coaxial transmission line, and after straightening, it will generate elastic deformation to provide a certain resistance to the drive rod assembly and reduce the contact impact force between the rectangular transmission line and the coaxial transmission line.

[0035] In summary, this application includes at least one of the following beneficial technical effects:

[0036] 1. By using a combination of rectangular transmission lines and coaxial transmission lines, the problem of insufficient impedance continuity at high frequencies, which is a problem that occurs when only two rectangular transmission lines are used for signal transmission, is avoided. At the same time, the device size is kept within acceptable limits.

[0037] 2. By using a guide medium in conjunction with an electromagnetic drive device to switch the two circuits on and off, the guide medium fills the connecting cavity, enabling the device to normally switch the two circuits on and off. After one action, the guide medium will automatically return to balance due to the difference in gravity at its two ends and the gravity of the drive rod assembly set on the guide medium, and there will be no elastic vibration. This avoids the situation in existing devices where the elastic swing arm will shake, thus affecting signal transmission.

[0038] 3. By employing a damping element, when the two drive rod assemblies are far apart and a connection between the loops is required, the damping element can provide a certain resistance when the rectangular transmission line and the coaxial transmission line assembly come into contact, thereby reducing the impact force between the rectangular transmission line and the coaxial transmission line assembly and effectively protecting the service life of the rectangular transmission line and the coaxial transmission line assembly. Attached Figure Description

[0039] Figure 1 This is a front view of a surface-mount microwave mechanical switch provided in an embodiment of this application;

[0040] Figure 2 This is a front view of a surface-mount microwave mechanical switch connector provided in the embodiments of this application;

[0041] Figure 3 This is a planar sectional view of a surface-mount microwave mechanical switch communication cavity provided in an embodiment of this application;

[0042] Figure 4 This is a top plan view of a surface-mount microwave mechanical switch connector provided in the embodiments of this application.

[0043] Figure 5 This is a planar sectional view of a surface-mount microwave mechanical switch provided in an embodiment of this application;

[0044] Figure 6 This is a top plan sectional view of a surface-mount microwave mechanical switch provided in the embodiments of this application;

[0045] Figure 7 This is a planar schematic diagram of an elastic cord of a surface-mount microwave mechanical switch when it is not in operation, provided in an embodiment of this application;

[0046] Figure 8 This is a planar schematic diagram of the elastic rope of a surface-mount microwave mechanical switch provided in the embodiments of this application.

[0047] Explanation of reference numerals in the attached drawings: 1. Metal carrier plate; 11. Coaxial transmission line assembly; 111. Input transmission line; 112. Output transmission line; 113. Transmission gap; 114. Support connector; 2. Connector; 21. Communicating cavity; 210. Guide medium; 211. Outlet; 212. Drive rod assembly; 2121. Piston rod; 2122. Connecting block; 2123. Magnetic block; 2124. Connecting rod; 213. Rectangular transmission line; 214. Damping element; 3. Electromagnetic drive device; 31. Drive housing; 32. Electromagnetic coil; 4. Support frame; 41. Assembly gap. Detailed Implementation

[0048] The following is in conjunction with the appendix Figure 1-8 This application provides a further detailed description of a surface-mount microwave mechanical switch.

[0049] Please see Figures 1 to 4This application provides a surface-mount microwave mechanical switch, comprising: a metal carrier plate 1, a connector 2, and an electromagnetic drive device 3. A coaxial transmission line assembly 11 is disposed on the metal carrier plate 1, with both ends of the coaxial transmission line assembly 11 penetrating the metal carrier plate 1. The connector 2 is assembled to the upper surface of the metal carrier plate, and the connector 2 has a communicating cavity 21 extending along the length direction of the metal carrier plate 1. Two outlets 211 communicating with the communicating cavity 21 are respectively provided at both ends of the upper surface of the communicating cavity 21. The communicating cavity 21 is filled with a guiding medium 210. Each outlet 211 is sealed with a drive rod assembly 212 that can move vertically. One end of the drive rod assembly 212 extends into the outlet 211, and the other end is provided with a rectangular transmission line 213. One end of the coaxial transmission line assembly 11 can communicate with the rectangular transmission line 213, and the other end is soldered to a user RF board. A damping element 214 is provided between the two drive rod assemblies 212 to reduce... A rectangular transmission line 213 is used to reduce the impact force when the rectangular transmission line 213 contacts the coaxial transmission line assembly 11. The electromagnetic drive device 3 is located on the side of the connector 2 away from the metal carrier plate 1. The electromagnetic drive device 3 can drive the rectangular transmission line 213 on one set of drive rod assemblies 212 to approach the coaxial transmission line assembly 11 and drive the rectangular transmission line 213 on the other set of drive rod assemblies 212 away from the coaxial transmission line assembly 11. By using the repulsive force of the electromagnetic drive device 3 on the magnetic block 2123, the drive rod assembly 212 is driven to move, thereby causing the two piston rods 2121 to move in opposite directions. The drive rod assembly 212, which is subjected to repulsive force, moves downward and drives the rectangular transmission line 213 to connect with the coaxial transmission line assembly 11, realizing signal transmission. At the same time, when the drive rod assembly 212 returns to center, it returns to center by the gravity difference between the two ends of the guide medium 210 and the gravity of the piston rod 2121 itself, without involving elastic force, so no jitter occurs.

[0050] The guiding medium 210 can be a silicone strip or a rubber strip, utilizing the flexibility of the silicone strip and the rubber strip to transmit force.

[0051] The guiding medium 210 can also be helium. By compressing the volume of one end of the connecting cavity 21, the pressure of the other end of the helium on the drive rod assembly 212 increases, thereby driving the other end to move.

[0052] The guide medium 210 can also be a mineral-based hydraulic oil or a synthetic hydraulic oil. Since the mineral-based guide medium 210 or the synthetic guide medium 210 has good anti-wear properties, anti-oxidation properties, rust prevention properties and corrosion prevention properties, it can ensure that the performance is maintained and the service life is extended during repeated extrusion.

[0053] Please see Figure 5The surface-mount microwave mechanical switch also includes a support frame 4, which has an assembly gap 41 inside, and the connector 2 is located in the assembly gap 41.

[0054] The support frame 4 is a metal component. The support frame 4 is assembled on the upper surface of the metal carrier plate 1 and is used to shield signal interference. By setting the metal support frame 4, it can support the electromagnetic drive device 3 above, and at the same time provide an assembly gap 41 for the connector 2, so that it can move in the assembly gap 41, and at the same time, it can also be used to shield signal interference.

[0055] Please see Figure 6 The coaxial transmission line assembly 11 includes an input transmission line 111 and an output transmission line 112. The number of output transmission lines 112 is set to two, and they are respectively located on both sides of the input transmission line 111. The input transmission line 111 and the two output transmission lines 112 are spaced apart along the length direction of the metal carrier plate 1 to form two transmission gaps 113. One end of the input transmission line 111 and the output transmission line 112 are electrically connected to the user radio frequency board. The two output transmission lines 112 are respectively set on both sides of the input transmission line 111 to form two loops. By connecting them with different rectangular transmission lines 213, the two loops can be switched on and off, which facilitates the differentiation and independent transmission of different signals.

[0056] Please see Figure 2 , Figure 3 and Figure 4 The two sets of drive rod assemblies 212 are respectively disposed on the same side of the transmission gap 113. Each drive rod assembly 212 includes a piston rod 2121, a connecting block 2122, and a connecting rod 2124. One end of the piston rod 2121 extends into the outlet 211 and slides to seal with the communicating cavity 21, while the other end extends to the outside of the outlet 211. One side of the connecting block 2122 is fixedly connected to the other end of the piston rod 2121, and a magnetic block 2123 is fixedly connected to the other side of the connecting block 2122. One end of the connecting rod 2124 is disposed near the coaxial transmission line assembly on the connecting block 2122. One end of the 11 is connected and fixed to the rectangular transmission line 213. The rectangular transmission line 213 extends along the length of the metal carrier plate 1 and is located above the other end of the input transmission line 111 and the output transmission line 112. It is used to connect the input transmission line 111 and the output transmission line 112 located on both sides of the transmission gap 113. By setting a piston rod 2121 and making one of the piston rods 2121 slide at the outlet 211, the guide medium 210 inside the connecting cavity 21 is pushed, thereby driving the other piston rod 2121 to slide in the opposite direction, so as to realize the connection and disconnection of the two circuits.

[0057] Please see Figure 6, the projected area of one end of the rectangular transmission line 213 on the input transmission line 111 is not greater than half of the cross-sectional area of the input transmission line 111, and the projected area of the other end of the rectangular transmission line 213 on the output transmission line 112 is not greater than half of the cross-sectional area of the output transmission line 112. By defining the positional relationship between the rectangular transmission line 213 and the coaxial transmission line assembly 11 in the vertical direction, when the rectangular transmission line 213 moves downward and contacts the coaxial transmission line assembly 11, it can improve the impedance continuity of the device under high-frequency conditions without interference with each other.

[0058] Please refer to Figure 1 , Figure 5 and Figure 6 , the electromagnetic driving device 3 includes: a driving housing 31 and electromagnetic coils 32. The driving housing 31 is assembled on the support frame 4. The number of the electromagnetic coils 32 is two. The electromagnetic coils 32 are spaced and assembled inside the driving housing 31 and are respectively arranged above the two driving rod assemblies 212. By providing the electromagnetic driving device 3 and respectively providing electromagnetic coils 32 corresponding to the two driving rod assemblies 212 in the two driving housings 31, it can ensure that the device can quickly switch between the on and off states of the two circuits.

[0059] Please refer to Figure 5 , the metal carrier plate 1 further includes a support connecting piece 114. The support connecting piece 114 is arranged outside the coaxial transmission line assembly 11. The coaxial transmission line assembly 11 is fixedly assembled on the metal carrier plate 1 through the support connecting piece 114.

[0060] Please refer to Figure 7 and Figure 8 , the damping member 214 is an elastic rope. The damping member 214 is arranged between the two connecting blocks 2122. The two ends of the damping member 214 are respectively connected to the closer sides of the two connecting blocks 2122. The length S of the damping member 214 and the distance D between the projections of the two connecting blocks 2122 on the horizontal plane satisfy: D < S. By providing the damping member 214 and defining its length, when the connecting block 2122 moves close to the upper surface of the communication cavity 21, the damping member 214 automatically tightens due to the two connecting members 2 moving away from each other. At the same time, as the connecting block 2122 continues to move, the damping member 214 can undergo elastic deformation, thereby providing damping for the downward movement of the connecting block 2122 and reducing the impact generated when the connecting block 2122 contacts the communication cavity and the rectangular transmission line 213 contacts the coaxial transmission line.

[0061] In summary, when the electromagnetic driving device 3 is not powered on, the two driving rod assemblies 212 on the communication cavity 21 have equal self-weights, so that the rectangular transmission line 213 connected thereto will not be connected to the coaxial transmission line;

[0062] Please see Figure 7 When one of the electromagnetic coils 32 in the electromagnetic drive device 3 is energized, the electromagnetic coil 32 generates a magnetic force and a repulsive force on the magnetic block 2123 located below it, causing the connecting block 2122 below to move down. The piston rod 2121 moves down with the connecting block 2122, which in turn pushes the guide medium 210 on the other side of the connecting cavity 21 to rise, causing the piston rod 2121 on the other side to move up, thereby causing the two drive rod assemblies 212 to move in opposite directions. At this time, one of the rectangular transmission lines 213 is connected to the input transmission line 111 and one of the output transmission lines 112 to complete the signal transmission. In addition, when it is necessary to drive the rectangular transmission line 213 on the other side to move down, the other electromagnetic coil 32 is energized, which can complete the circuit switching.

[0063] Please see Figure 6 When the device is powered on and resets to its original position, the electromagnetic coil 32 is de-energized. At this time, the heights of the two sides of the guide medium 210 are inconsistent, so it automatically resets without external pressure, driving the two rectangular transmission lines 213 to reset, so that the drive rod assembly 212 will not vibrate due to elasticity without external intervention.

[0064] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A surface mount microwave mechanical switch, characterized by, The surface-mounted microwave mechanical switch comprises a metal carrier plate (1) provided with a coaxial transmission line assembly (11) penetrating through the metal carrier plate (1) at both ends, a connecting piece (2) assembled on the upper surface of the metal carrier plate, the connecting piece (2) being provided with a communication cavity (21) extending along the length direction of the metal carrier plate (1), the communication cavity (21) being provided with two outlets (211) communicating with the communication cavity (21) at both ends of the upper surface, the communication cavity (21) being filled with a guide medium (210), each outlet (211) being sealedly connected with a drive rod assembly (212) movable in the vertical direction, the drive rod assembly (212) extending into the outlet (211) at one end and being provided with a rectangular transmission line (213) at the other end, the coaxial transmission line assembly (11) being communicable with the rectangular transmission line (213) at one end and being welded with a user radio frequency plate at the other end, the two drive rod assemblies (212) being provided with a damping piece (214) therebetween, and an electromagnetic drive device (3) provided on the side of the connecting piece (2) away from the metal carrier plate (1), the electromagnetic drive device (3) being capable of driving the rectangular transmission line (213) on one of the drive rod assemblies (212) to approach the coaxial transmission line assembly (11) and driving the rectangular transmission line (213) on the other drive rod assembly (212) to move away from the coaxial transmission line assembly (11). The surface-mounted microwave mechanical switch further comprises a support frame (4) provided with an assembly gap (41) in the inside, and the connecting piece (2) is located in the assembly gap (41). The support frame (4) is a metal member, and is assembled on the upper surface of the metal carrier plate (1) to shield signal interference. The coaxial transmission line assembly (11) comprises an input transmission line (111) and two output transmission lines (112) located on both sides of the input transmission line (111), the input transmission line (111) and the two output transmission lines (112) being spaced apart along the length direction of the metal carrier plate (1) to form two transmission gaps (113), and the input transmission line (111) and the output transmission lines (112) being electrically connected with a user radio frequency plate at one end.

2. A surface mount microwave mechanical switch according to claim 1, wherein: The two groups of drive rod assemblies (212) are respectively arranged on the same side of the transmission gaps (113), and each drive rod assembly (212) comprises a piston rod (2121) extending into the outlet (211) at one end and being slidably sealed with the communication cavity (21) at the other end, a connecting block (2122) fixedly connected with the piston rod (2121) at one side and fixedly connected with a magnetic block (2123) at the other side.

3. A surface mount microwave mechanical switch according to claim 2, wherein: ​ 4. A surface mount microwave mechanical switch according to claim 1, wherein: ​ ​ ​ 5. A surface mount microwave mechanical switch according to claim 4, wherein: ​ ​ ​ A connecting rod (2124) is arranged at one end of the connecting block (2122) near the coaxial transmission line assembly (11), and is connected and fixed with the rectangular transmission line (213) at the other end. The rectangular transmission line (213) extends along the length direction of the metal carrier plate (1) at two ends. The two ends of the rectangular transmission line (213) extend to above the other ends of the input transmission line (111) and the output transmission line (112) respectively, for connecting the input transmission line (111) and the output transmission line (112) located on both sides of the transmission gap (113).

6. A surface mount microwave mechanical switch according to claim 5, wherein: The projection area of one end of the rectangular transmission line (213) on the input transmission line (111) is not greater than half of the cross-sectional area of the input transmission line (111), and the projection area of the other end of the rectangular transmission line (213) on the output transmission line (112) is not greater than half of the cross-sectional area of the output transmission line (112).

7. A surface mount microwave mechanical switch according to claim 3, wherein: The electromagnetic driving device (3) comprises: A driving shell (31) is assembled on the support frame (4); Two electromagnetic coils (32) are arranged in the driving shell (31) and correspond to the two driving rod assemblies (212) respectively.

8. A surface mount microwave mechanical switch according to claim 1, wherein: The metal carrier plate (1) further comprises a support connecting piece (114), which is arranged outside the coaxial transmission line assembly (11), and the coaxial transmission line assembly (11) is fixedly assembled on the metal carrier plate (1) through the support connecting piece (114).

9. A surface mount microwave mechanical switch according to claim 5, wherein: The damping member (214) is an elastic rope, which is arranged between the two connecting blocks (2122), and the two ends of the damping member (214) are connected with the sides of the two connecting blocks (2122) close to each other respectively.

10. A surface mount microwave mechanical switch according to claim 9, wherein: The length S of the damping member (214) and the distance D between the projections of the two connecting blocks (2122) on the horizontal plane satisfy: D < S.

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