CN214542123U - Small-size ion trap radio frequency coil device - Google Patents
Small-size ion trap radio frequency coil device Download PDFInfo
- Publication number
- CN214542123U CN214542123U CN202120611334.8U CN202120611334U CN214542123U CN 214542123 U CN214542123 U CN 214542123U CN 202120611334 U CN202120611334 U CN 202120611334U CN 214542123 U CN214542123 U CN 214542123U
- Authority
- CN
- China
- Prior art keywords
- radio
- radio frequency
- frequency coil
- frequency
- circuit board
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Coils Or Transformers For Communication (AREA)
Abstract
The utility model discloses a small-size ion trap radio frequency coil device, characteristics are: the radio frequency coil comprises a radio frequency coil support, and a radio frequency coil, a radio frequency signal plate, a grounding electrode and a printed circuit board which are coaxially arranged on the radio frequency coil support from front to back in sequence, wherein the radio frequency coil, the radio frequency signal plate, the grounding electrode and the printed circuit board are separated by gaskets, the radio frequency coil is connected with the front end face of the radio frequency signal plate, conductive positioning holes are arranged at four corners of the printed circuit board and are connected with the rear end face of the printed circuit board in a short circuit manner, the front end face of the printed circuit board is provided with a conductive signal feedback area for receiving feedback signals of the radio frequency signal plate, the positioning holes and the signal feedback area are separated by an insulating area, the rear end face of the insulating area is provided with an SMA connector, the SMA connector is connected with the signal feedback area through a lead, the radio frequency coil support is provided with an opening, and the SMA connector is connected to an external control circuit through the opening, the advantages are that: the installation is simple and convenient, and the device performance is more stable.
Description
Technical Field
The utility model relates to an ion trap spare part field especially relates to a small-size ion trap radio frequency coil device.
Background
The traditional small 3D ion trap radio frequency coil device mainly comprises a coil shell, a radio frequency feedback plate, a grounding electrode, a radio frequency signal plate, a radio frequency coil and a radio frequency tuning sheet. The radio frequency coil (L) and the 3D ion trap (C) form an LC resonance circuit, and the radio frequency tuning sheet finely tunes the inductance value of the radio frequency coil so as to ensure that the actual LC resonance frequency can be stabilized at the frequency generated by the circuit and improve the performance of the instrument. The radio frequency signal plate, the grounding electrode and the radio frequency feedback plate form an air capacitor, the radio frequency signal plate and the radio frequency feedback plate are used as the positive electrode and the negative electrode of the capacitor, the grounding electrode is arranged between the two electrodes, the radio frequency feedback plate is connected to an external control circuit board through a lead, and then the voltage value of the radio frequency signal is stabilized at the voltage value required by the instrument through a closed loop.
The structure and connection mode of the prior art miniature ion trap radio frequency coil are specifically shown in fig. 1: the radio frequency coil support 2 is a radio frequency coil support, insulating screws 71 are inserted into four positioning holes of the radio frequency coil support 2, and then an insulating gasket 64, a radio frequency feedback plate 10, an insulating gasket 65, a grounding electrode 5, an insulating gasket 61 and a radio frequency signal plate 4 sequentially penetrate through the insulating screws 71 and are fixed through nuts 72.
The above structure still has the following drawbacks: the first disadvantage is that: the radio frequency feedback plate 10 cannot be connected with the shell ground, and the grounding electrode 5 needs to be connected with the shell ground, so that the grounding electrode 5 needs to fix a conducting wire by a screw, then is connected to the radio frequency coil bracket 2 from a shell gap and is fixed by the screw.
The second disadvantage is that: the radio frequency feedback plate 10 cannot be connected with the shell ground, so the radio frequency feedback plate needs to be connected to an SMA interface of a shell (not shown in the figure) by fixing a lead wire through a screw and then connected to a control circuit, but because two parts are connected together, the length is not easy to control, the installation is inconvenient, and the installation distance among the radio frequency coil bracket 2, the radio frequency feedback plate 10 and the grounding electrode 5 is short, so the short circuit is easy to occur.
The third disadvantage is that: the lead connected with the rf feedback board 10 is disposed in the housing, and if there is slight shake, change in the length of the lead in the housing, or change in the installation position, the performance of the ion trap may be greatly different, which may result in the performance of the ion trap failing to meet the standard.
Therefore, a radio frequency coil device for a small 3D ion trap is needed to solve the problems of complex installation, poor stability, large performance difference of different radio frequency coils, large overall performance difference, high software calibration difficulty and the like of the radio frequency coil.
Disclosure of Invention
In order to solve the radio frequency coil installation that exists among the above-mentioned prior art complicacy, poor stability, different radio frequency coil performance difference is big, leads to the complete machine performance difference big, the problem that the software calibration degree of difficulty is high, the utility model provides a small-size ion trap radio frequency coil device, the installation is more simple and convenient, and the instrument performance is more stable.
The utility model provides a technical scheme that above-mentioned technical problem adopted does: a small-sized ion trap radio frequency coil device comprises a radio frequency coil support, and a radio frequency coil, a radio frequency signal plate, a grounding electrode and a printed circuit board which are coaxially arranged on the radio frequency coil support from front to back in sequence, wherein the radio frequency signal plate, the grounding electrode and the printed circuit board are sequentially fixed with a rear end plate of the radio frequency coil support through connecting pieces, the radio frequency signal plate, the grounding electrode, the printed circuit board and the rear end plate of the radio frequency coil support are all separated through gaskets, the radio frequency coil is connected with the front end surface of the radio frequency signal plate, positioning holes are formed in four corners of the printed circuit board, the positioning holes are coated with conductive layers, the four positioning holes are connected through the rear end surface short circuit of the printed circuit board, and a signal feedback area is arranged in the middle of the front end surface of the printed circuit board, the signal feedback area is coated with a conducting layer and used for receiving a feedback signal of the radio frequency signal plate, the locating hole and the signal feedback area are separated by an insulating area, an SMA joint is further arranged on one side of the rear end face of the insulating area and connected with the signal feedback area through a lead, an opening is formed in the rear end plate of the radio frequency coil support and corresponds to the SMA joint, and the SMA joint is connected to an external control circuit through the opening.
In some embodiments, the rf signal board is connected to the ground electrode through an insulating gasket, the ground electrode is connected to the printed circuit board through a first metal gasket, the printed circuit board is connected to the rear end plate of the rf coil bracket through a second metal gasket, and the insulating gasket has a thickness greater than that of the first metal gasket and that of the second metal gasket. The conductive metal gaskets are arranged between the grounding electrode and the printed circuit board and between the printed circuit board and the rear end plate of the radio frequency coil support, the positioning hole of the assembled rear printed circuit board, the front end grounding electrode, the first metal gasket, the rear end second metal gasket and the support are in a short circuit communication state, namely, the rear printed circuit board and the front end second metal gasket are grounded together, additional wires are not needed, and the problem of inconvenient installation is solved.
In some embodiments, the connecting member includes an insulating screw and a nut, the rf signal plate and the ground electrode are provided with openings at positions corresponding to the positioning holes, and the rf signal plate, the insulating gasket, the ground electrode, the first metal gasket, the printed circuit board, and the second metal gasket sequentially pass through the insulating screw from front to back and are screwed and fixed on the rear end plate of the rf coil support through the nut. This makes it easier and more reliable to assemble.
In some embodiments, the signal feedback region covers the rf signal hole on the ground electrode. Thereby receiving the signal returned from the radio frequency signal plate.
In some embodiments, the radio frequency tuning device further comprises a radio frequency tuning sheet, a radio frequency tuning sheet support rod and a coil end cover, wherein the radio frequency tuning sheet is arranged between the rear end of the radio frequency coil and the radio frequency signal plate, the front end of the radio frequency coil is fixed on the radio frequency coil support through the coil end cover, the radio frequency tuning sheet support rod is arranged in the radio frequency coil, two ends of the radio frequency tuning sheet support rod are respectively connected with the radio frequency tuning sheet and the coil end cover, and the coil end cover is fixed with the radio frequency coil support through a fixing screw.
Compared with the prior art, the utility model has the advantages of: (1) the signal feedback area of the printed circuit board is arranged and serves as the feedback area of the radio frequency signal board, and the signal returned from the radio frequency signal board is received; the printed circuit board is provided with the SMA connector, the rear end plate of the radio frequency coil support is provided with an opening which is positioned at the same position as the SMA connector, and the feedback signal is led out to the control circuit through the SMA connector, so that the problem caused by instability of radio frequency feedback lines with the defects of two and three in the prior art can be improved, short circuit is not easy to occur, and the performance of the instrument is more stable;
(2) because four locating holes on the printed circuit board are insulated from the signal feedback area, and conductive metal gaskets are arranged between the grounding electrode and the printed circuit board and between the printed circuit board and the rear end plate of the radio-frequency coil bracket instead, under the state that the insulating screws are screwed down, the four locating holes of the printed circuit board, the radio-frequency coil bracket and the grounding electrode are all in the state of short-circuit communication, namely are grounded together with the shell, thereby the problem of inconvenient installation in the prior art is solved.
Drawings
FIG. 1 is an exploded view of a prior art RF coil assembly for a compact ion trap;
fig. 2 is an exploded view of an embodiment of a compact ion trap rf coil apparatus of the present invention;
fig. 3 is a front view of an embodiment of a compact ion trap rf coil apparatus of the present invention;
fig. 4 is a cross-sectional view of an embodiment of a compact ion trap rf coil assembly according to the present invention;
fig. 5 is a schematic diagram of a printed circuit board in a compact ion trap rf coil device according to the present invention;
fig. 6 is a schematic diagram of an embodiment of a small ion trap rf coil device according to the present invention.
The radio frequency coil comprises a printed circuit board 1, positioning holes 101,102,103 and 104, a signal feedback area 105, an SMA connector 106, an insulation area 107, a rear end face 11 of the printed circuit board, a front end face 12 of the printed circuit board, a radio frequency coil support 2, a rear end plate 21 of the radio frequency coil support, an opening 22, a radio frequency coil 3, a radio frequency signal plate 4, a grounding electrode 5, a radio frequency signal hole 51, insulation gaskets 61, 64 and 65, a first metal gasket 62, a second metal gasket 63, an insulation screw 71, a nut 72, a radio frequency tuning sheet 81, a radio frequency tuning sheet support rod 82, a coil end cover 91, a fixing screw 92 and a radio frequency feedback plate 10.
Detailed Description
The following detailed description of the rf coil device of the small ion trap will be made with reference to the accompanying drawings and examples, which are not intended to limit the present invention.
Example one
As shown in the figure, the small-sized ion trap radio-frequency coil device comprises a radio-frequency coil support 2, and a radio-frequency coil 3, a radio-frequency signal plate 4, a grounding electrode 5 and a printed circuit board 1 which are coaxially arranged on the radio-frequency coil support 2 from front to back in sequence, wherein the radio-frequency signal plate 4, the grounding electrode 5 and the printed circuit board 1 are sequentially fixed with a rear end plate 21 of the radio-frequency coil support through connecting pieces, the radio-frequency signal plate 4, the grounding electrode 5, the printed circuit board 1 and the rear end plate 21 of the radio-frequency coil support are all separated through gaskets, the radio-frequency coil 3 is connected with the front end surface of the radio-frequency signal plate 4, positioning holes 101,102,103 and 104 are formed in four corners of the printed circuit board 1, the positioning holes are coated with conductive layers, the four positioning holes are connected through a short circuit through the rear end surface 11 of the printed circuit board, a signal feedback area 105 is arranged in the middle of the front end surface 12 of the printed circuit board, and the signal feedback area 105 is coated with the conductive layers, the positioning holes 101,102,103 and 104 are separated from the signal feedback area 105 by an insulating area 107, an SMA connector 106 is further arranged on one side of the rear end face of the insulating area 107, the SMA connector 106 is connected with the signal feedback area 105 through a lead, an opening 22 is arranged on the rear end plate 21 of the radio frequency coil support corresponding to the SMA connector 106, and the SMA connector 106 is connected to an external control circuit through the opening 22.
Example two
In the radio frequency coil device of a compact ion trap proposed in this embodiment, a specific structure of the spacer is described in detail based on the first embodiment. In this embodiment, the radio frequency signal plate 4 is connected to the ground electrode 5 through the insulating gasket 61, the ground electrode 5 is connected to the printed circuit board 1 through the first metal gasket 62, the printed circuit board 1 is connected to the rear end plate 21 of the radio frequency coil support through the second metal gasket 63, and the thickness of the insulating gasket 61 is greater than the thicknesses of the first metal gasket 62 and the second metal gasket 63.
EXAMPLE III
In the radio frequency coil device of a compact ion trap proposed in this embodiment, a specific structure of the connecting member is described in detail based on the second embodiment. In this embodiment, the connecting member includes an insulating screw 71 and a nut 72, the positions of the radio frequency signal plate 4 and the ground electrode 5 corresponding to the positioning holes 101,102,103, and 104 are both provided with openings, and the radio frequency signal plate 4, the insulating spacer 61, the ground electrode 5, the first metal spacer 62, the printed circuit board 1, and the second metal spacer 63 sequentially penetrate through the insulating screw 71 from front to back, and are screwed and fixed on the rear end plate 21 of the radio frequency coil support through the nut 72.
In this embodiment, the signal feedback region 105 covers the rf signal hole 51 on the ground electrode 5.
Example four
In the radio frequency coil device of the small ion trap provided in this embodiment, the rest of the structure of the radio frequency coil device is further supplemented on the basis of the second embodiment. In this embodiment, the radio frequency coil device further includes a radio frequency tuning sheet 81, a radio frequency tuning sheet support rod 82, and a coil end cover 91, where the radio frequency tuning sheet 81 is disposed between the rear end of the radio frequency coil 3 and the radio frequency signal board 4, the front end of the radio frequency coil 3 is fixed on the radio frequency coil support 2 through the coil end cover 91, the radio frequency tuning sheet support rod 82 is disposed in the radio frequency coil 3, two ends of the radio frequency tuning sheet 81 and two ends of the radio frequency tuning sheet 91 are respectively connected to the coil end cover 91, and the coil end cover 91 is fixed to the radio frequency coil support 2 through a fixing screw 92.
The utility model relates to a theory of operation of small-size ion trap radio frequency coil device is shown in figure 6, this structure is through setting up printed circuit board's signal feedback district, this region is regional as the feedback of radio frequency signal board, receive the signal that comes from the radio frequency signal board and return, through the opening that sets up on the SMA that sets up on the printed circuit board connects and the radio frequency coil support, directly connect through SMA and draw feedback signal on leading control circuit, be used for converting current signal to voltage signal, the radio frequency signal's of being convenient for feedback control and collection.
It should be noted that the above-mentioned embodiments are only preferred embodiments of the present invention, and the scope of the present invention is not limited thereto, and the present invention can also be modified in materials and structures, or replaced by technical equivalents. Therefore, all structural equivalents which may be made by applying the present invention to the specification and drawings, or by applying them directly or indirectly to other related technical fields, are intended to be encompassed by the present invention.
Claims (5)
1. A small-sized ion trap radio-frequency coil device is characterized by comprising a radio-frequency coil support, a radio-frequency coil, a radio-frequency signal plate, a grounding electrode and a printed circuit board, wherein the radio-frequency coil, the radio-frequency signal plate, the grounding electrode and the printed circuit board are sequentially and coaxially arranged on the radio-frequency coil support from front to back, the radio-frequency signal plate, the grounding electrode, the printed circuit board and the rear end plate of the radio-frequency coil support are sequentially fixed with the rear end plate of the radio-frequency coil support through connecting pieces, the radio-frequency signal plate, the grounding electrode, the printed circuit board and the rear end plate of the radio-frequency coil support are all separated through gaskets, the radio-frequency coil is connected with the front end surface of the radio-frequency signal plate, positioning holes are formed in four corners of the printed circuit board, the positioning holes are coated with conductive layers, and the four positioning holes are connected through a short circuit on the rear end surface of the printed circuit board, the middle part of the front end face of the printed circuit board is provided with a signal feedback area, the signal feedback area is coated with a conducting layer and used for receiving a feedback signal of the radio frequency signal board, the positioning hole and the signal feedback area are separated by an insulating area, one side of the rear end face of the insulating area is also provided with an SMA connector, the SMA connector is connected with the signal feedback area through a lead, an opening is arranged on the rear end plate of the radio frequency coil support and corresponds to the SMA connector, and the SMA connector is connected to an external control circuit through the opening.
2. The compact ion trap radio-frequency coil device according to claim 1, wherein the radio-frequency signal plate is connected to the ground electrode through an insulating spacer, the ground electrode is connected to the printed circuit board through a first metal spacer, the printed circuit board is connected to the rear end plate of the radio-frequency coil support through a second metal spacer, and the insulating spacer has a thickness greater than that of the first metal spacer and that of the second metal spacer.
3. The miniature ion trap radio frequency coil device according to claim 2, wherein the connecting member comprises an insulating screw and a nut, the radio frequency signal plate and the ground electrode are provided with openings at positions corresponding to the positioning holes, and the radio frequency signal plate, the insulating spacer, the ground electrode, the first metal spacer, the printed circuit board and the second metal spacer sequentially penetrate through the insulating screw from front to back and are screwed and fixed on the rear end plate of the radio frequency coil support through the nut.
4. A compact ion trap radio frequency coil assembly as claimed in claim 1 wherein said signal feedback region covers a radio frequency signal aperture in said ground electrode.
5. The compact ion trap radio-frequency coil device according to any one of claims 1 to 4, further comprising a radio-frequency tuning piece, a radio-frequency tuning piece support rod and a coil end cap, wherein the radio-frequency tuning piece is disposed between the rear end of the radio-frequency coil and the radio-frequency signal plate, the front end of the radio-frequency coil is fixed on the radio-frequency coil support through the coil end cap, the radio-frequency tuning piece support rod is disposed in the radio-frequency coil, two ends of the radio-frequency tuning piece support rod are respectively connected with the radio-frequency tuning piece and the coil end cap, and the coil end cap is fixed with the radio-frequency coil support through a fixing screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120611334.8U CN214542123U (en) | 2021-03-25 | 2021-03-25 | Small-size ion trap radio frequency coil device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120611334.8U CN214542123U (en) | 2021-03-25 | 2021-03-25 | Small-size ion trap radio frequency coil device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214542123U true CN214542123U (en) | 2021-10-29 |
Family
ID=78265903
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120611334.8U Active CN214542123U (en) | 2021-03-25 | 2021-03-25 | Small-size ion trap radio frequency coil device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214542123U (en) |
-
2021
- 2021-03-25 CN CN202120611334.8U patent/CN214542123U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2015070450A1 (en) | Resonator, filter, duplexer and multiplexer | |
| CN110088978B (en) | Resonator and communication device | |
| JPWO2011024514A1 (en) | Flexible substrate antenna and antenna device | |
| CN214542123U (en) | Small-size ion trap radio frequency coil device | |
| KR102266811B1 (en) | Communication device and method for assembling the communication device | |
| CN106910967B (en) | Radio frequency device and double-end short-circuit dielectric filter thereof | |
| CN106602222B (en) | Mobile terminal and its antenna assembly | |
| CN209487701U (en) | A kind of capacitive coupling loaded antenna applied to TWS earphone | |
| CN116231257A (en) | Circulator | |
| WO2019128502A1 (en) | Electronic device with enhanced antenna performance | |
| CN210326074U (en) | Port coupling piece mounting structure of combiner and combiner | |
| CN212277405U (en) | Shark fin antenna | |
| CN109983617A (en) | Filter | |
| US6396361B1 (en) | Non-reciprocal circuit element with ground terminals on one side free of input/output terminals | |
| US20090213524A1 (en) | Capacitor assembly and communication device including the capacitor assembly | |
| US12015214B2 (en) | Antenna structure and electronic device | |
| CN220510226U (en) | Filter and communication equipment | |
| CN211125961U (en) | Radio frequency device and cavity device | |
| CN216671873U (en) | Impedance adjusting assembly, surface acoustic wave filter and filter | |
| CN115051127B (en) | Cavity filter | |
| CN208738435U (en) | A kind of antenna structure and terminal device | |
| CN220122088U (en) | Filter and communication equipment | |
| CN213583314U (en) | Tunable inductor | |
| CN209418818U (en) | A kind of millimeter wave connector | |
| CN211376900U (en) | Circulator pressing structure and circulator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |