RF switches

Abstract

The present invention provides a radio frequency switch, which utilizes a disc-shaped drive disk. Drive contacts extend from the drive disk. As the drive disk rotates, the drive contacts rotate a predetermined angle and contact a first switch regulating device or a second switch regulating device, respectively. The first switch regulating device, triggered by the drive contacts, activates to connect and conduct a first group of signal ports. The drive disk drives the drive contacts to separate from the first switch regulating device, thereby disconnecting the first group of signal ports. The drive structure between the drive contacts and the second switch regulating device operates in the same manner as the first switch regulating device. By adopting a rotating drive disk structure as the drive structure of the radio frequency switch, the connection or disconnection of the first and second groups of signal ports can be controlled by a power device controlling the rotation of the drive disk, thereby simplifying the drive structure of the radio frequency switch.

Description

Technical Field

[0001] The present invention relates to the technical field of wireless communications, and more particularly to a radio frequency switch. Background Art

[0002] In wireless communication systems, RF signals often encounter path selection challenges. Multiple switches are often used to select signal flow during frequency band or port conversion, component connections, or multi-port testing, ensuring that RF signals are connected or blocked as required.

[0003] Common switch types include single-pole single-throw (SPST), single-pole double-throw (SPDT), single-pole four-throw (SP4T), double-pole double-throw (DPDT), and, in some cases, multi-pole multiple-throw (MPMT). Mobile communication test systems also use multiple switches to implement an MxN connection matrix to achieve grid-like interconnection, based on the connection requirements of multiple signals.

[0004] In mobile communication systems, the simultaneous operation of multiple frequencies generates passive intermodulation (PIM) along the signal transmission path, degrading the system's signal-to-noise ratio (SNR). This can lead to performance degradation and even inoperability in intermodulation measurement systems. This is especially true when multiple switches are connected in parallel or cascade to form a switch matrix, where performance degrades to unacceptable levels.

[0005] Currently, RF switches are implemented using IC chips, PIN diodes, and mechanical connections. Different switch types can be selected depending on the application. IC chip and PIN diode switches have very low power handling capabilities and high transmission losses, making them primarily used in electronic circuits or smaller modules. Mechanical switches can handle higher power, but current technical solutions offer a single type, making their integration into a switch matrix complex and difficult to drive. Passive intermodulation (PIM) performance is also often neglected in switch design and production, resulting in poor residual intermodulation (RIM).

[0006] In today's wireless communication systems, increasing communication density necessitates multi-frequency operation, placing higher demands on the intermodulation performance of key components such as filters, cables, and antennas. In automated test systems, switches are required to connect multiple test instruments to multiple test ports. Therefore, the residual intermodulation performance of the switch matrix itself must be excellent, significantly higher than that of the device under test itself. Summary of the Invention

[0007] In view of this, the present invention provides a radio frequency switch to improve its intermodulation performance.

[0008] In order to achieve the above object, the present invention provides the following technical solutions:

[0009] A radio frequency switch, comprising a first group of signal ports and a second group of signal ports, a first switch regulating device for connecting or disconnecting the first group of signal ports, and a second switch regulating device for connecting or disconnecting the second group of signal ports;

[0010] A rotatably arranged drive disc, wherein when a rotation adjustment is extended from the drive disc, the drive contact that triggers the first switch adjustment device or the second switch adjustment device is driven;

[0011] It also includes a power device for controlling the rotation of the driving disc.

[0012] Preferably, in the above-mentioned radio frequency switch, the driving contact is a driving boss protruding from the plate surface of the driving disk.

[0013] Preferably, in the above-mentioned radio frequency switch, the first switch adjustment device includes a first pressing and releasing mechanism arranged along a vertical slide, pressed by the driving boss and automatically reset,

[0014] A first port connection conductor for conducting ports of the first compression and release mechanism is provided at one end of the first compression and release mechanism close to the first group of signal ports.

[0015] Preferably, in the above-mentioned radio frequency switch, the second switch adjustment device includes a second pressing and releasing mechanism arranged along a vertical sliding motion, pressed by the driving boss and automatically reset,

[0016] A second port connecting conductor for conducting ports of the second compression and release mechanism is provided at one end of the second compression and release mechanism close to the second group of signal ports.

[0017] Preferably, in the above-mentioned radio frequency switch, the first group of signal ports includes a first pair of external connectors that are in contact with and matched to the first port connection conductors, and the second group of signal ports includes a second pair of external connectors that are in contact with and matched to the second port connection conductors;

[0018] The top end of each external connector is provided with a metal coupling plate for connecting a port connection conductor.

[0019] Preferably, in the above-mentioned radio frequency switch, the first pair of external connectors and the second pair of external connectors share the same metal coupling disk that is in on-off coordination with the first port connection conductor and the second port connection conductor.

[0020] Preferably, in the above-mentioned radio frequency switch, the first port connecting conductor and the second port connecting conductor are both strip-shaped port connecting pieces.

[0021] Preferably, in the above-mentioned radio frequency switch, the first pressing and releasing mechanism and the second pressing and releasing mechanism each comprise two guide pressure rods respectively fixed to the two ends of the length direction of the port connecting piece, a connecting plate connecting the two guide pressure rods is provided at the driving ends thereof, and a pressing pin extending from the middle of the connecting plate and press-fitting with the driving boss;

[0022] The guide pressure rod is sleeved with a return spring which is connected with the connecting plate and lifts up the port connecting piece.

[0023] Preferably, the radio frequency switch further comprises a metal cavity provided with an accommodating cavity, wherein the external connection ends of the first pair of external connectors and the second pair of external connectors extend out of a bottom wall of the metal cavity;

[0024] The top opening of the metal cavity is provided with a metal cover plate supporting the first switch regulating device and the second switch regulating device;

[0025] The metal cover plate is provided with guide mounting holes for supporting and guiding the guide pressure rods of the first pressing and releasing mechanism and the second pressing and releasing mechanism respectively.

[0026] Preferably, in the above-mentioned radio frequency switch, the contact surfaces of the driving boss and the pressing pin are both arc pressing surfaces.

[0027] Preferably, in the above-mentioned radio frequency switch, the first pair of external connectors and the second pair of external connectors include two groups of external connectors arranged in an array, and the two groups of external connectors surround two first pairs of external connectors arranged oppositely, and two second pairs of external connectors arranged oppositely.

[0028] Preferably, in the above-mentioned RF switch, the driving boss includes a first driving boss and a second driving boss provided at both radial ends of the driving disk, and the first driving boss and the second driving boss are press-fitted with the adjacent first pair of external connectors and the second pair of external connectors respectively.

[0029] Preferably, in the above-mentioned RF switch, the driving boss includes two groups arranged at the radial ends of the driving disk, each group of the driving bosses includes two, the two driving bosses are located between the first pair of external connectors and the second pair of external connectors on their corresponding sides, and the angle between the two driving bosses in each group is 40°-50°.

[0030] Preferably, in the above-mentioned radio frequency switch, the angle between the two driving bosses in each group is 45°.

[0031] Preferably, in the above radio frequency switch, the first pair of external connectors and the second pair of external connectors include a plurality of groups arranged in an array along a circumferential direction, and each group of the first pair of external connectors and the second pair of external connectors share the same metal coupling disk.

[0032] Preferably, in the above-mentioned radio frequency switch, the first pair of external connectors and the second pair of external connectors include three groups arranged in an array along a circumferential direction.

[0033] Preferably, in the above-mentioned radio frequency switch, three groups of driving bosses extend from the driving disk, corresponding to each group of the first pair of external connectors and the second pair of external connectors respectively, and each group of the driving bosses includes a first external driving boss that is press-fitted with the first pair of external connectors, and a second external driving boss that is press-fitted with the second pair of external connectors.

[0034] Preferably, in the above-mentioned radio frequency switch, the included angle between the first external driving boss and the second external driving boss is 15°-25°.

[0035] Preferably, in the above-mentioned radio frequency switch, the included angle between the first external driving boss and the second external driving boss is 20°.

[0036] Preferably, in the above-mentioned radio frequency switch, the power device is a driving motor provided on a side of the driving disk away from the driving contact.

[0037] The radio frequency switch provided by the present invention includes a first group of signal ports and a second group of signal ports, a first switch adjustment device for connecting or disconnecting the first group of signal ports, and a second switch adjustment device for connecting or disconnecting the second group of signal ports; a rotatably arranged drive disk, wherein when a rotation adjustment is extended from the drive disk, the drive contact that triggers the first switch adjustment device or the second switch adjustment device is driven; and a power device for controlling the rotation of the drive disk is also included. The radio frequency switch adopts a disc-shaped drive disk, which performs the switching action of the radio frequency switch by rotating. The drive contact extends from the drive disk. As the drive disk rotates, the drive contact rotates a predetermined angle and then contacts the first switch adjustment device or the second switch adjustment device. After the first switch adjustment device is triggered by the drive contact, it drives the first group of signal ports to connect and conduct. After the drive disk drives the drive contact to separate from the first switch adjustment device, it drives the first group of signal ports to disconnect. The drive structure of the drive contact and the second switch adjustment device is the same as that of the first switch adjustment device. By adopting a rotating drive disk structure as the drive structure of the radio frequency switch, the power device controls the rotation of the drive disk to control the connection or disconnection of the first and second signal ports, thereby simplifying the drive structure of the radio frequency switch. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0039] Figure 1 This is a front view of the radio frequency switch provided by the present invention;

[0040] Figure 2 for Figure 1 Schematic diagram of the internal structure of the RF switch;

[0041] Figure 3 for Figure 1 Schematic diagram of the compression and release structure of the RF switch;

[0042] Figure 4 for Figure 1 Schematic diagram of the drive disk structure of the RF switch;

[0043] Figure 5 A simplified structural diagram of two sets of double-pole double-throw radio frequency switches provided by the present invention;

[0044] Figure 6 This is a simplified structural diagram of three groups of double-pole double-throw radio frequency switches provided by the present invention;

[0045] Figure 7 for Figure 6 Schematic diagram of the driver disk structure of the RF switch. DETAILED DESCRIPTION

[0046] The invention discloses a radio frequency switch, which improves the intermodulation performance of the radio frequency switch.

[0047] The following will provide a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0048] like Figure 1-Figure 4 As shown, Figure 1 This is a front view of the radio frequency switch provided by the present invention; Figure 2 for Figure 1 Schematic diagram of the internal structure of the RF switch; Figure 3 for Figure 1 Schematic diagram of the compression and release structure of the RF switch; Figure 4 for Figure 1 Schematic diagram of the driver disk structure of the RF switch.

[0049] This embodiment provides a radio frequency switch, including a first group of signal ports 11, 12 and a second group of signal ports 12, 13, a first switch adjustment device 21 for connecting or disconnecting the first group of signal ports 11, 12, and a second switch adjustment device 22 for connecting or disconnecting the second group of signal ports 12, 13; a rotatably arranged drive disk 3, wherein a drive contact 31 is extended from the drive disk 3 to trigger the first switch adjustment device 21 or the second switch adjustment device 22 when a rotation adjustment is respectively driven; and a power device 4 for controlling the rotation of the drive disk 3. The RF switch utilizes a disc-shaped drive disk 3 that rotates to switch the RF switch on and off. A drive contact 31 extends from the drive disk 3. As the drive disk 3 rotates, the drive contact 31 rotates a predetermined angle, contacting the first switch regulating device 21 or the second switch regulating device 22. The first switch regulating device 21, triggered by the drive contact 31, activates and connects the first group of signal ports 11 and 12. The drive disk 3 separates the drive contact 31 from the first switch regulating device 21, disconnecting the first group of signal ports 11 and 12. The drive structure between the drive contact 31 and the second switch regulating device 22 is identical to that of the first switch regulating device. By employing a rotating drive disk 3 as the drive structure of the RF switch, the power unit 4 controls the rotation of the drive disk 3 to connect or disconnect the first group of signal ports 11 and 12 and the second group of signal ports 12 and 13, simplifying the drive structure of the RF switch.

[0050] In a specific embodiment of the present invention, the driving contact 31 is a driving boss protruding from the surface of the driving disk 3. Rotation of the driving disk 3 causes the driving contact 31 thereon to rotate by a predetermined angle to engage with the first switch adjustment device 21 or the second switch adjustment device 22, thereby connecting and disconnecting the first group of signal ports 11, 12 or the second group of signal ports 12, 13. The driving contact 31 can be driven by a toggle or a press. In this embodiment, the driving contact 31 is arranged to protrude from the surface of the driving disk 3, and the driving boss preferably drives the first and second switch adjustment devices 21, 22 by a press.

[0051] Specifically, the first switch adjustment device 21 includes a first compression release mechanism arranged along the vertical sliding, pressed by the driving boss and automatically reset, and a first port connection conductor 215 is set near one end of the first group of signal ports to connect the ports.

[0052] The second switch adjustment device 22 includes a second pressing and releasing mechanism arranged to slide vertically, pressed and automatically reset by the driving boss, and a second port connecting conductor 225 for conducting the ports of the second group of signal ports is provided at one end of the second pressing and releasing mechanism close to the second group of signal ports.

[0053] The drive disk 3 rotates closer, and the drive boss presses the first switch adjustment device 21. The first switch adjustment device 21 adopts a first pressing and releasing mechanism that slides vertically. After the first pressing and releasing mechanism presses the drive boss, it slides vertically downward, thereby driving the first port connection conductor 215 to move downward and connect with the two ports of the first group of signal ports 11 and 12.

[0054] The driving disk 3 rotates away, the driving boss disengages from the first switch adjustment device 21, the first pressing and releasing mechanism is no longer compressed, automatically resets and slides upward, and then drags the first port connecting conductor 215 to separate from the first group of signal ports 11 and 12, and the first group of signal ports 11 and 12 are disconnected.

[0055] Correspondingly, the second switch adjustment device 22 drags the second port connection conductor 225 to slide up and down through the contact or separation of the second pressing and releasing structure with the driving boss, thereby connecting or disconnecting the two ports of the second group of signal ports 12 and 13.

[0056] In a specific embodiment of the present case, the first group of signal ports 11 and 12 include a first pair of external connectors that contact and mate with the first port connecting conductor 215, and the second group of signal ports 12 and 13 include a second pair of external connectors that contact and mate with the second port connecting conductor 225; the top of each external connector 11, 12, 13 is provided with a metal coupling plate 110, 120, 130 for connecting the port connecting conductor.

[0057] The first group of signal ports 11, 12 and the second group of signal ports 12, 13 each include two external connectors, one end of the two external connectors is connected to the external circuit, and a metal coupling disk is provided at the other end. The first port connecting conductor 215 is moved downward, and the first port connecting conductor 215 connects the two metal coupling disks at the ends of the external connectors of the first group of signal ports to achieve conduction of the first group of signal ports 12, 13.

[0058] The second port connecting conductor 225 moves downward and connects the two external connectors of the second group of signal ports 12 and 13. The second port connecting conductor 225 connects the two metal coupling plates of the two external connectors to achieve conduction of the second group of signal ports.

[0059] The driving boss is dragged and rotated by the driving disk 3. After the pressure on the top of the first clamping and releasing mechanism or the second clamping and releasing mechanism is no longer applied, the first port connecting conductor 215 or the second port connecting conductor 225 is dragged upward and separated from the metal coupling disk, and the first group of signal ports 11, 12 or the second group of signal ports 12, 13 are correspondingly disconnected.

[0060] The first group of signal ports 11 and 12 and the second group of signal ports 12 and 13 use external connectors of the same model and specification, so the first pressing and releasing mechanism and the second pressing and releasing mechanism can adopt a universal structure, reducing the difficulty of preparation.

[0061] In one embodiment of the present invention, the first and second pairs of external connectors share the same metal coupling plate 120 for engaging and disengaging the first and second port connection conductors 215 and 225. The first and second compression-release mechanisms are driven by a rotating drive boss, with the rotational radius of the two mechanisms being consistent. Furthermore, the first and second groups of signal ports 11 and 12, 12, are staggered, allowing the two to be configured as independent external connector structures and share the same external driver.

[0062] In this embodiment, the first pair of external connectors and the second pair of external connectors can use three external connectors. The external connectors near the first group of signal ports 11, 12 and the second group of signal ports 12, 13 are shared external connectors. During the wiring process, three external lines can be used to achieve the disconnection and connection of the two signals.

[0063] In a specific embodiment of this case, both the first port connecting conductor 215 and the second port connecting conductor 225 are strip-shaped port connecting pieces. In this embodiment, the external connector utilizes a quick-connect connector that quickly plugs into the external circuit. A metal coupling plate is disposed on the inner side of the external connector. Both the first port connecting conductor 215 and the second port connecting conductor 225 utilize strip-shaped port connecting pieces that contact and cooperate with the metal coupling plate to achieve circuit conduction.

[0064] In a specific embodiment of the present case, the first clamping and releasing mechanism and the second clamping and releasing mechanism each include two guide pressure rods fixed to the two ends of the length direction of the port connecting piece respectively, and a connecting plate connecting the two is provided at the driving end of the two guide pressure rods, and a clamping pin extending from the middle of the connecting plate is pressed and matched with the driving boss; a return spring is mounted on the guide pressure rod and is connected to the connecting plate to lift the port connecting piece.

[0065] The structures of the first pressing and releasing mechanism and the second pressing and releasing mechanism are consistent, and the first pressing and releasing mechanism is taken as an example.

[0066] To accommodate the strip-shaped port connector and ensure circuit stability during simultaneous contact with the metal coupling plates of two external connectors, a first compression release mechanism is provided. Two first guide pressure rods 214 are fixedly attached to the longitudinal ends of the first port connection conductor 215. The driving ends of the two first guide pressure rods 214 are integrally connected by a first connecting plate 212. A first compression pin 211 extends from the middle of the first connecting plate 212, which engages with a compression boss. A first return spring 213 is also mounted on the first guide pressure rod 214. After the compression boss disengages from the first compression pin 211, the first return spring 213 pushes the first guide pressure rod 214 upward, thereby pulling the first port connection conductor 215 away from the metal coupling plate. The first port connection conductor 215, first guide pressure rod 214, first connecting plate 212, first compression pin 212, and first return spring 211 form a first compression release mechanism 21 with a reset function, controlled by the driving plate to connect or disconnect the external connector.

[0067] Similarly, the second pressing and releasing mechanism includes two second guide pressure rods 224 , on which second return springs 223 are sleeved. A second connecting plate 222 is provided on the top of the second guide pressure rods 224 , and a second pressing pin 221 extends from the middle of the second connecting plate 222 .

[0068] In a specific embodiment of the present case, it also includes a metal cavity 5 with an accommodating cavity, and the external ends of the first pair of external connectors and the second pair of external connectors extend out of the bottom wall of the metal cavity 5; the top opening of the metal cavity 5 is provided with a metal cover plate 6 that supports the first switch adjustment device 21 and the second switch adjustment device 22; the metal cover plate 6 is provided with guide mounting holes for supporting and guiding the guide pressure rods of the first clamping and releasing mechanism and the second clamping and releasing mechanism respectively.

[0069] The driver disk 3 rotates, with its driving boss pressing the first and second compression-release mechanisms, which slide unidirectionally, to control the external connector's on / off state. A metal cavity 5 houses a translational housing for the port connector. The bottom wall secures the external connector, while the top opening is covered by a metal cover plate 6. This cover plate features guide holes for the sliding movement of the pressure rod and provides support for the return spring. The power unit and driver disk are located outside the metal cover plate, achieving a compact RF switch design.

[0070] Preferably, the contact surfaces of the driving boss and the pressing pin are both arc pressure-feeding surfaces. The driving boss abuts against the pressing pin by rotating close to the pressing pin, pushing the pressing pin downward, and setting the contact surface of the two to an arc structure, thereby reducing the difficulty of pushing the driving boss and the pressing pin, reducing collision damage, and ensuring the stability of the driving structure. Specifically, the driving contact 31 is a driving boss extending out of the plate surface of the driving disk 3, which is an arc conical surface. The first pressing pin 211 and the second pressing pin 221 are both arc conical surface structures. The driving contact 31 and the first pressing pin 211 and the second pressing pin 221 of the arc surface both adopt arc surfaces, which facilitate the pressing of the first switch adjustment device 21 and the second switch adjustment device 22 through the inclined contact structure. Preferably, the driving contact 31 has a certain elasticity in the normal direction of the driving disk, and the arc conical surfaces of the first pressing pin 211 and the second pressing pin 221 are rigid structures. The different surface strength settings of the two meet the safety requirements for long-term use.

[0071] In a specific embodiment of the present invention, the first and second pairs of external connectors comprise two arrayed groups of external connectors, the two groups of external connectors forming two opposing first and second pairs of external connectors. The RF switch performs functions similar to a single-pole, double-throw (SPDT) or double-pole, double-throw (DPDT) mechanical switch. To accommodate the disc-shaped rotating structure of its drive disk 3, multiple drive bosses can be evenly distributed along the circumference of the drive disk 3, with the corresponding first and second groups of signal ports configured to accommodate the number of drive bosses.

[0072] In this embodiment, the first group of signal ports 11, 12 and the second group of signal ports 12, 13 are both set to two groups, the first pair of external connectors and the second pair of external connectors are both set to two pairs, and the four external connectors are arranged in a rectangular shape, including a first group of signal ports 11, 12 consisting of the first external connector 11 and the second external connector 12, a second group of signal ports 12, 13 consisting of the second external connector 12 and the third external connector 13, a third group of signal ports 13, 14 consisting of the third external connector 13 and the fourth external connector 14, and a fourth group of signal ports 14, 11 consisting of the fourth external connector 14 and the first external connector 11. The first group of signal ports 11, 12 and the third group of signal ports 13, 14 are arranged relative to each other and have a consistent on-off rhythm, the third group of signal ports 13, 14 and the fourth group of signal ports 14, 11 are arranged relative to each other and have a consistent on-off rhythm, and the RF switch completes a compact layout.

[0073] Correspondingly, adjacent signal ports all share a common external connector, and the connection or disconnection actions of the two opposite groups of signal ports are consistent. Correspondingly, two driving bosses are set at the radial ends of the driving disk, and the driving disk rotates to realize the on-off control of the two transmission channels.

[0074] Specifically, the driving contact 31 includes two driving bosses, which are a first driving boss 311 and a second driving boss 312 arranged at the radial ends of the driving disk. The first driving boss 311 and the second driving boss 312 are press-fitted with the adjacent first pair of external connectors and the second pair of external connectors respectively.

[0075] The working principle of the rotary drive device is described using an embodiment of two sets of double-pole double-throw. Figure 5 As shown, Figure 5 The simplified structure diagram of two sets of double-pole double-throw (DPDT) RF switches provided by the present invention is shown in FIG. The structure of a DPDT RF switch is the same as that of a single-pole double-throw (SPDT) RF switch, except that the drive disk 3 has two pairs of drive bosses.

[0076] The metal cavity 5 is connected to four external connectors, including a first external connector 11 , a second external connector 12 , a third external connector 13 , and a fourth external connector 14 .

[0077] Port connection pieces are respectively provided between adjacent external connectors, including a first port connection conductor 215 , a second port connection conductor 225 , a third port connection conductor 235 , and a fourth port connection conductor 24 .

[0078] The pressing pins assembled on the respective guide rods and the port connecting pieces include a first pressing pin 211 , a second pressing pin 221 , a third pressing pin 231 , and a fourth pressing pin 241 .

[0079] Four driving bosses are provided on the circular driving disk 3 coaxially mounted with the metal cavity 5 , including a first driving boss 311 , a second pressing boss 312 , a third pressing boss 313 , and a fourth pressing boss 314 .

[0080] The distribution diameter of the four driving bosses is the same as that of the clamping pin. Unlike the single-pole double-throw RF switch, the four driving bosses of the double-pole double-throw switch are divided into two groups and the center lines have a 45-degree angle.

[0081] Figure 5 As shown, the first drive boss 311 and the third drive boss 313 are in the same position as the first clamping pin 211 and the fourth clamping pin 241, and the first port connecting conductor 215 and the fourth port connecting conductor 245 are pushed by the guide rod, so that the corresponding first external connector 11 and the second external connector 12 are in a closed state, and the third external connector 13 and the fourth external connector 14 are in a closed state.

[0082] After rotating the drive disk 5 counterclockwise by 45 degrees, the first drive boss 311 and the second drive boss 312 are separated from the first clamping pin 211 and the third clamping pin 231, the first port connecting conductor 215 and the third port connecting conductor 235 are released, and the return spring in the guide pressure rod of the RF switch is lifted. The corresponding RF switch disconnects the first external connector 11 and the second external connector 12, and the third external connector 13 and the fourth external connector 14 are in a separated state.

[0083] The third drive boss 313 and the fourth drive boss 314 are in the same position as the fourth clamping pin 241 and the second clamping pin 221. At this time, the second port connecting conductor 225 and the fourth port connecting conductor 245 are pushed downward by the guide rod, the first external connector 11 and the fourth external connector 14 are in a closed state, and the second external connector 12 and the third external connector 13 are in a closed state, thereby completing a switch switching.

[0084] like Figure 6 and Figure 7 As shown, Figure 6 This is a simplified structural diagram of three groups of double-pole double-throw radio frequency switches provided by the present invention; Figure 7 for Figure 6 Schematic diagram of the driver disk structure of the RF switch.

[0085] In a specific embodiment of the present invention, the first and second pairs of external connectors comprise multiple groups arranged in a circumferential array, with each group sharing a common metal coupling disk. The first and second pairs of external connectors, pressed by a common drive boss, are grouped together, and multiple groups can be evenly distributed around the circumference of the drive disk, thereby achieving single-pole, multiple-throw (SPMT) switching for multiple / multi-way switching signals.

[0086] Of course, each group of external connectors can also be set to multiple pairs, such as setting three or more pairs of external connectors, and setting the corresponding drive bosses as needed to achieve a multi-pole multi-throw function.

[0087] Specifically, the first pair of external connectors and the second pair of external connectors include three groups arranged in an array along the circumferential direction.

[0088] Three groups of driving bosses corresponding to each group of the first pair of external connectors and the second pair of external connectors extend from the driving disk 400. The three groups of the first pair of external connectors and the second pair of external connectors are divided into SPDT1 area, SPDT2 area and SPDT3 area along the circumferential direction, corresponding to the three groups of driving bosses respectively.

[0089] Each set of drive bosses includes a first external drive boss 401a, which is press-fitted with the first pair of external connectors, and a second external drive boss 401b, which is press-fitted with the second pair of external connectors. The first and second external drive bosses 401a, 401b are positioned between the two hold-down pins of the first and second pairs of external connectors. By rotating the drive disk 400 slightly in either the forward or reverse direction, the first external drive boss can press-fit the first pair of external connectors, or the second external drive boss can press-fit the second pair of external connectors, thereby improving stability during RF switch channel switching.

[0090] Taking the first group of switches in the SPDT1 zone as an example, the RF switch includes a first external connector 101a, a second external connector 101b, and a third external connector 101c. A first port connecting conductor 210a is placed between the first external connector 101a and the second external connector 101b, a second port connecting conductor 210b is provided between the second external connector 101b and the third external connector 101c, and a first clamping pin 211a and a second clamping pin 211b are respectively installed thereon.

[0091] Three groups of driving bosses are installed on the circular driving disk 400, and their distribution diameters are the same as the distribution diameters of the pressing pins. The angle γ1 between the driving bosses is the same as the angle α1 between the external connectors, and is set at 15°-25°, preferably 20°.

[0092] Further preferably, multiple groups of external connectors are divided into circumferential coordinates. Taking the vertical coordinate as the reference, in the SPDT1 zone, the two clamping pins have angles α1 of 20° and β1 of 60° with the vertical coordinate. In the SPDT2 zone, one of the two clamping pins coincides with the vertical coordinate, and the angle β2 between the two is 40°. In the SPDT3 zone, the angle β3 between the clamping pin adjacent to the SPDT2 zone and the vertical coordinate is 80°. By setting the angles of the three groups of external connectors, a uniform distribution in the circumferential direction is achieved.

[0093] Correspondingly, on the drive disk 400, the three groups of drive bosses cooperate with the clamping pins in multiple groups of external connectors by ensuring the angular relationship between them and the vertical coordinate, including the angular relationship between the first-side drive boss on the same side and the vertical coordinate, γ1 is 20°, δ2 is 40°, and γ3 is 80°; the angular relationship between the second-side drive boss and the vertical coordinate, δ1 is 40°, γ2 is 20°, and δ3 is 100°.

[0094] like Figure 6 and Figure 7As shown in the middle position, the first external drive boss 401a is aligned with the first clamping pin 211a. At this point, the first port connecting conductor 210a closes the first external connector 101a and the second external connector 101b. When the drive disk 400 rotates 20 degrees counterclockwise, the first drive boss 401a releases the first clamping pin 211a, separating the first and second external connectors 101a, 101b. The second drive boss 401b then contacts the second clamping pin 211b, pushing the second port connecting conductor 210b to close the second and third external connectors 101b, thus completing a double-pole, double-throw (DPDT) switch. Due to the configuration of the drive bosses on the drive disk 400, SPDT2 and SPDT3 switch simultaneously with SPDT1.

[0095] In one embodiment of this invention, the power device is a drive motor located on the side of the drive disc facing away from the drive contacts. The drive motor, which drives the disc in forward and reverse rotation, is comprised of a DC motor or stepper motor with a reduction gear. This rotary drive reduces space requirements and ensures stable channel switching.

[0096] The above description of the disclosed embodiments is intended to enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A radio frequency switch, characterized in that: comprising a first group of signal ports and a second group of signal ports, a first switch regulating device for connecting or disconnecting the first group of signal ports, and a second switch regulating device for connecting or disconnecting the second group of signal ports; A rotatably arranged drive disk, from which a drive contact extends, wherein when the drive contact is rotated and adjusted, the first switch adjustment device or the second switch adjustment device is triggered; Also included is a power device for controlling the rotation of the drive disc; The driving contact is a driving boss protruding from the plate surface of the driving disk; The first switch adjustment device includes a first pressing and releasing mechanism arranged in a vertical sliding manner, pressed by the driving boss and automatically reset, A first port connection conductor is provided at one end of the first pressing and releasing mechanism close to the first group of signal ports to connect the ports to the first group of signal ports; The second switch adjustment device includes a second pressing and releasing mechanism arranged in a vertical sliding manner, pressed by the driving boss and automatically reset, A second port connection conductor is provided at one end of the second pressing and releasing mechanism close to the second group of signal ports to connect the ports to the second group of signal ports; The first group of signal ports includes a first pair of external connectors that are in contact with and mate with the first port connection conductors, and the second group of signal ports includes a second pair of external connectors that are in contact with and mate with the second port connection conductors; The top end of each of the external connectors is provided with a metal coupling disc for connecting to a port connection conductor; The first pair of external connectors and the second pair of external connectors share the same metal coupling disk, and the metal coupling disk is respectively connected and disconnected with the first port connection conductor and the second port connection conductor; The first port connecting conductor and the second port connecting conductor are both strip-shaped port connecting pieces; The first pressing and releasing mechanism and the second pressing and releasing mechanism each comprise two guide pressure rods respectively fixed to the two ends of the port connecting piece in the length direction, a connecting plate connecting the two guide pressure rods is provided at the driving ends thereof, and a pressing pin extending from the middle of the connecting plate and press-fitting with the driving boss; The guide pressure rod is sleeved with a return spring connected to the connecting plate to lift the port connecting piece; Also included is a metal cavity having an accommodating cavity, wherein the external ends of the first pair of external connectors and the second pair of external connectors extend out of a bottom wall of the metal cavity; The top opening of the metal cavity is provided with a metal cover plate supporting the first switch regulating device and the second switch regulating device; The metal cover plate is provided with guide mounting holes for supporting and guiding the guide pressure rods of the first pressing and releasing mechanism and the second pressing and releasing mechanism respectively; The power device is a driving motor arranged on a side of the driving disc away from the driving contact.

2. The radio frequency switch according to claim 1, wherein: The contact surfaces of the driving boss and the pressing pin are both arc pressing surfaces.

3. The radio frequency switch according to claim 1, wherein: The first pair of external connectors and the second pair of external connectors include two groups of external connectors arranged in an array, and the two groups of external connectors form two first pairs of external connectors arranged opposite to each other, and two second pairs of external connectors arranged opposite to each other.

4. The radio frequency switch according to claim 3, characterized in that: The driving boss includes a first driving boss and a second driving boss provided at both radial ends of the driving disk. The first driving boss and the second driving boss are press-fitted with adjacent first and second pairs of external connectors, respectively.

5. The radio frequency switch according to claim 4, characterized in that: The driving bosses include two groups arranged at the radial ends of the driving disk, each group of the driving bosses includes two, the two driving bosses are located between the first pair of external connectors and the second pair of external connectors on their corresponding sides, and the angle between the two driving bosses in each group is 40°-50°.

6. The radio frequency switch according to claim 5, characterized in that: The included angle between the two driving bosses in each group is 45°.

7. The radio frequency switch according to claim 1, wherein: The first pair of external connectors and the second pair of external connectors include a plurality of groups arranged in an array along a circumferential direction, and each group of the first pair of external connectors and the second pair of external connectors share a same metal coupling disk.

8. The radio frequency switch according to claim 7, characterized in that: The first pair of external connectors and the second pair of external connectors include three groups arranged in an array along a circumferential direction.

9. The radio frequency switch according to claim 8, characterized in that: Three groups of drive bosses extend from the drive disk, corresponding to each group of the first pair of external connectors and the second pair of external connectors. Each group of drive bosses includes a first external drive boss that is press-fitted with the first pair of external connectors, and a second external drive boss that is press-fitted with the second pair of external connectors.

10. The radio frequency switch according to claim 9, characterized in that: The included angle between the first external driving boss and the second external driving boss is 15°-25°.

11. The radio frequency switch according to claim 10, characterized in that: The included angle between the first external driving boss and the second external driving boss is 20°.

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