CN217522204U

CN217522204U - Spiral resonator for ion trap experiment

Info

Publication number: CN217522204U
Application number: CN202221609179.7U
Authority: CN
Inventors: 苏东波; 刘红喜; 付平; 郑晨光; 周卓俊; 黄毛毛; 韩琢; 罗乐
Original assignee: Qike Quantum Technology Zhuhai Co ltd; Guokaike Quantum Technology Beijing Co Ltd
Current assignee: Qike Quantum Technology Zhuhai Co ltd; Guokaike Quantum Technology Beijing Co Ltd
Priority date: 2022-06-24
Filing date: 2022-06-24
Publication date: 2022-09-30
Anticipated expiration: 2032-06-24

Abstract

The utility model discloses a spiral resonator for ion trap experiment, include: the antenna comprises an input connector, an antenna, a coil column, at least one spiral coil and output connectors with the same number as the spiral coils, wherein the input connector is connected with the antenna, spiral grooves with the same number as the spiral coils are formed in the outer surface of the coil column, the spiral coils are correspondingly arranged in the spiral grooves, the spiral coils are correspondingly connected with the output connectors, and the antenna and the spiral grooves in the coil column are coaxially arranged. The utility model discloses a helical resonator for ion trap experiment, its deformation and the positional deviation that can reduce the coil guarantee the axiality.

Description

Spiral resonator for ion trap experiment

Technical Field

The utility model relates to a syntonizer technical field especially relates to a spiral syntonizer for ion trap experiment.

Background

In an instrument needing high-voltage narrow-bandwidth radio-frequency signal input, such as an ion trap, a resonator is an indispensable component, the resonator can amplify the voltage of a low-power radio-frequency signal in an antenna coupling amplification mode, and meanwhile, the radio-frequency signal with the accurate frequency of a narrow bandwidth is obtained through the frequency selection characteristic. In an ion trap experiment, due to the strict requirements of the ion trap on radio frequency signal stability and frequency bandwidth, a spiral resonator is generally adopted, and the spiral resonator has a very high Q value and can meet the experiment requirements of the ion trap.

At present, in the spiral resonator for ion trap experiments in the market, the coaxiality of an antenna and a coil of the spiral resonator can not be effectively guaranteed due to coil deformation or assembly errors, and the deviation of the coaxiality can greatly influence the coupling performance, so that the performance of spiral resonance is reduced.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model aims to provide a spiral resonator for ion trap experiment, its deformation and the positional deviation that can reduce the coil guarantee the axiality.

The purpose of the utility model is realized by adopting the following technical scheme:

a spiral resonator for ion trap experiments, comprising: the antenna comprises an input connector, an antenna, a coil column, at least one spiral coil and output connectors with the same number as the spiral coils, wherein the input connector is connected with the antenna, spiral grooves with the same number as the spiral coils are formed in the outer surface of the coil column, the spiral coils are correspondingly arranged in the spiral grooves, the spiral coils are correspondingly connected with the output connectors, and the antenna and the spiral grooves in the coil column are coaxially arranged.

Further, the number of the spiral coils is two, the two spiral coils form a double-spiral structure, and the angle between the two spiral coils is different by 180 °.

Furthermore, the spiral resonator for the ion trap experiment further comprises a housing, an upper cover and a lower cover, wherein the housing is provided with two oppositely arranged openings, the coil column is positioned in the housing, and two ends of the coil column are respectively connected in the two openings; the upper cover and the lower cover are connected with the shell and respectively covered on the two openings of the shell, the input connector and the antenna are connected with the upper cover, the output connectors are connected with the lower cover, and the lower cover is further provided with a vent hole.

Furthermore, the shell is cuboid, two openings are located at two ends of the shell in the length direction, and mounting plates are arranged on two opposite side faces of the shell respectively.

Furthermore, a threaded hole coaxial with the opening is formed in the upper cover, an antenna fixing plate is connected to the threaded hole in an internal thread mode, and the input connector and the antenna are arranged on the antenna fixing plate.

Furthermore, the spiral resonator for the ion trap experiment further comprises two direct current compensation PCB boards, two direct current compensation joints and two direct current compensation grounding joints; each direct current compensation PCB is arranged at one end, close to the antenna, of the coil column, each direct current compensation joint and each direct current compensation grounding joint are arranged on the shell, and one end, facing the antenna, of each spiral coil is sequentially connected with one direct current compensation grounding joint, one direct current compensation PCB and one direct current compensation joint in series through a lead.

Furthermore, the coil post is of a hollow structure, and one end of each spiral coil facing the antenna is inserted into the inner side of the coil post from the outer side of the coil post and then connected with the direct current compensation ground connector, the direct current compensation PCB and the direct current compensation connector.

Furthermore, the spiral resonator for the ion trap experiment further comprises a phase synchronization PCB, the phase synchronization PCB is disposed at one end of the coil column away from the antenna, one end of each spiral coil away from the antenna is inserted into the inner side of the coil column from the outer side of the coil column and then is connected to each output connector through a wire, and each output connector is connected to the phase synchronization PCB through a wire.

Furthermore, the spiral resonator for the ion trap experiment further comprises a sampling PCB, a sampling joint and a sampling grounding joint; the sampling PCB board sets up the coil pole is kept away from the one end of antenna, the sampling connects and the sampling ground joint all sets up on the shell, the sampling PCB board respectively with sampling ground joint, sampling connect and arbitrary the output joint passes through the wire and connects.

Further, reinforcing ribs are arranged in the circumferential direction of the coil posts.

Compared with the prior art, the beneficial effects of the utility model reside in that: the helicla flute has been seted up to the surface of coil pole, and antenna and the coaxial setting of helicla flute, helical coil set up in the helicla flute, so helical coil's shape and position can be retrained by the helicla flute, have reduced helical coil because of warp or assembly error lead to with the antenna axiality deviation, have realized the accurate location of helical coil's shape and position, thereby have just also guaranteed the utility model is used for the performance of the helical resonator of ion trap experiment.

Drawings

Fig. 1 is a schematic perspective view of the spiral resonator for ion trap experiments according to the present invention;

FIG. 2 is an exploded view of FIG. 1;

fig. 3 is a schematic diagram of the spiral resonator housing for ion trap experiments according to the present invention;

fig. 4 is a schematic diagram of the coil column of the spiral resonator for ion trap experiments according to the present invention;

fig. 5 is a top view of the present invention with the upper cover, the antenna, the input connector, and the antenna fixing plate removed;

FIG. 6 is a top view of the other end of FIG. 5 with the lower cover and output connector removed;

fig. 7 is a schematic perspective view of the middle spiral coil and the connection circuit of the present invention.

In the figure: 1. an input connector; 2. an antenna; 3. a coil post; 31. a helical groove; 32. reinforcing ribs; 4. a helical coil; 5. an output connector; 61. a housing; 611. an opening; 612. mounting a plate; 62. an upper cover; 621. a threaded hole; 63. a lower cover; 7. an antenna fixing plate; 81. a DC compensation PCB board; 82. a DC compensation joint; 83. a DC compensation ground connection; 91. a phase synchronization PCB board; 101. sampling a PCB (printed Circuit Board); 102. a sampling joint; 103. sampling a grounding joint; 110. and (4) conducting wires.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1-2, the utility model provides a helical resonator for ion trap experiment is shown, it includes input joint 1 at least, antenna 2, coil post 3, at least one spiral coil 4 and the output joint 5 that equals with spiral coil 4 quantity, input joint 1 is connected with antenna 2, set up the helicla flute 31 that equals with spiral coil 4 quantity on the surface of coil post 3, each spiral coil 4 corresponds and sets up in each helicla flute 31, each spiral coil 4 corresponds and is connected with each output joint 5, antenna 2 and the coaxial setting of helicla flute 31 on the coil post 3. Specifically, the input connector 1 is used for inputting a radio frequency signal, and specifically, a coaxial connector (generally, an SMA-type connector) may be selected and used for inputting a radio frequency signal from a signal source to the antenna 2; the output connector 5 is used for connecting a load. The coil post 3 is made of low-temperature vacuum compatible high-strength engineering plastics, such as PEEK or PI.

Among the foretell mode of setting, helicla flute 31 has been seted up to coil post 3's surface, antenna 2 and the coaxial setting of helicla flute 31, and helical coil 4 sets up in helicla flute 31, so helical coil 4's shape and position can be retrained by helicla flute 31, have reduced helical coil 4 because of warping or assembly error lead to with antenna 2 axiality deviation, have realized the accurate location of helical coil 4's shape and position, thereby have just also guaranteed the utility model is used for the performance of the spiral resonator of ion trap experiment.

In some embodiments, referring to fig. 2 and 7, the number of spiral coils 4 is two, two spiral coils 4 form a double spiral structure, and the angle between the two spiral coils 4 is different by 180 °. Correspondingly, the number of the output joints 5 is two, and the spiral groove 31 is also of a double-spiral structure. Namely, the utility model discloses a spiral resonator for ion trap experiment can connect two loads simultaneously. And the angle between the two spiral coils 4 is 180 degrees different, so that the phases of the two spiral coils 4 are 180 degrees different, which can facilitate the subsequent phase synchronization.

In some embodiments, referring to fig. 1 to 4, the spiral resonator for ion trap experiments further includes a housing 61, an upper cover 62 and a lower cover 63, the housing 61 has two openings 611 disposed opposite to each other, the coil column 3 is located in the housing 61, and two ends of the coil column 3 are respectively connected in the two openings 611; the upper cover 62 and the lower cover 63 are connected to the housing 61 and respectively cover the two openings 611 of the housing 61, the input connector 1 and the antenna 2 are connected to the upper cover 62, and the output connectors 5 are connected to the lower cover 63. In practice, the cavity of the housing 61 is a resonant cavity. The two ends of the coil column 3 are fixed with the two openings 611 in an interference fit manner. The lower cover 63 may be provided with a vent hole to adapt to the use of the spiral resonator for ion trap experiments in a vacuum environment (to facilitate vacuum pumping). A mounting plate 612 for mounting and fixing may be further provided on the housing 61. The housing 61, the upper cover 62 and the lower cover 63 are generally made of a metal material having good electrical conductivity, such as oxygen-free copper, and subjected to surface gold plating treatment to improve the operating performance of the spiral resonator for ion trap experiments.

In some embodiments, referring to fig. 1-3, the housing 61 has a rectangular parallelepiped shape, and the two openings 611 are located at both ends of the housing 61 in the length direction. I.e. the housing 61 has four flat surfaces, which facilitates the fixing of the joint. And simultaneously when the utility model discloses a helical resonator for ion trap experiment is used for low temperature environment, also can fully contact with the cold source plane to improve heat conduction area. The mounting plates 612 may be provided in two, with the two mounts being disposed on opposite sides of the housing 61.

In some embodiments, referring to fig. 2, a threaded hole 621 coaxial with the opening 611 is formed in the upper cover 62, the antenna fixing plate 7 is screwed into the threaded hole 621, and the input connector 1 and the antenna 2 are both disposed on the antenna fixing plate 7. Specifically, the input terminal 1 is fixed to the antenna fixing plate 7, and the antenna 2 is fixed by welding to the core inside the input terminal 1. Since the antenna fixing plate 7 is screwed with the screw hole 621, the antenna 2 can be displaced in the axial direction of the helical coil 4 to facilitate coupling adjustment under different conditions.

In some embodiments, referring to fig. 5-7, the spiral resonator for ion trap experiments further comprises two dc compensation PCB boards 81, two dc compensation tabs 82, and two dc compensation ground tabs 83; each dc compensation PCB 81 is disposed at one end of the coil post 3 close to the antenna 2, each dc compensation connector 82 and the dc compensation ground connector 83 are disposed on the housing 61, and one end of each spiral coil 4 facing the antenna 2 is sequentially connected in series with a dc compensation ground connector 83, a dc compensation PCB 81 and a dc compensation connector 82 through a conducting wire 110. That is, the dc compensation PCB 81, the dc compensation connector 82, the dc compensation ground connector 83 and the conductive wire 110 connecting the above components constitute a dc compensation circuit, through which a dc voltage can be injected into the spiral coil 4 to obtain a higher output voltage.

In some embodiments, the coil post 3 has a hollow structure, and one end of each spiral coil 4 facing the antenna 2 is inserted into the coil post 3 from the outside of the coil post 3 and then connected to the dc compensation ground connector 83, the dc compensation PCB 81, and the dc compensation connector 82. Through the mode, the spiral coil 4 can be further fixed, and the coaxiality is further ensured.

In some embodiments, the spiral resonator for the ion trap experiment further includes a phase synchronization PCB board 91, the phase synchronization PCB board 91 is disposed at an end of the coil column 3 away from the antenna 2, an end of each spiral coil 4 away from the antenna 2 is inserted into an inner side of the coil column 3 from an outer side of the coil column 3 and then is connected to each output connector 5 through a wire 110, and each output connector 5 is connected to the phase synchronization PCB board 91 through a wire 110. Through the circuit structure, the phase synchronization can be carried out on the output radio frequency signals of the two spiral coils 4.

In some embodiments, the spiral resonator for ion trap experiments further comprises a sampling PCB board 101, a sampling tap 102, and a sampling ground tap 103; two groups of capacitors connected in series are arranged on the sampling PCB 101, the sampling connector 102 is used for connecting a coaxial connector to output a sampling signal to a monitoring instrument, the sampling PCB 101 is arranged at one end, away from the antenna 2, of the coil column 3, the sampling connector 102 and the sampling grounding connector 103 are both arranged on the shell 61, and the sampling PCB 101 is respectively connected with the sampling grounding connector 103, the sampling connector 102 and any output connector 5 through a wire 110. Above-mentioned PCB board, sampling joint 102, sampling ground connection joint 103 and the wire 110 of connecting above-mentioned component have constituted sampling circuit promptly, can sample the radio frequency signal of spiral coil 4 output joint 5 through sampling circuit, with the monitoring the utility model is used for the operating condition of the spiral resonator of ion trap experiment.

In some embodiments, referring to fig. 4, the coil column 3 is provided with a reinforcing rib 32 in a circumferential direction. Through setting up strengthening rib 32, can guarantee coil post 3's structural strength, in order to guarantee the utility model discloses the reliability that spiral resonance used.

The utility model discloses a this device of helical resonator for ion trap experiment is used for enlargiing and narrow band-pass filtering to radio frequency signal to obtain a high voltage, the radio frequency signal of narrow band-pass can realize the impedance match between radio frequency signal and the load simultaneously, and furthest reduces the radio frequency energy reflection, improves the throughput of radio frequency energy. When using, need with radio frequency signal emergence source with the utility model discloses a helical resonator's for ion trap experiment input joint 1 is reliably connected with coaxial cable, links to each other output joint 5 with the load simultaneously, for monitoring output signal's quality, still need link to each other sampling joint 102 with monitoring facilities for sample output signal. In some application scenarios, if a higher rf output voltage is required, the dc compensation connector 82 may be connected to a constant-voltage dc source, and a compensation dc voltage is injected into the spiral coil 4 to increase the initial voltage of the spiral coil 4, and then the higher output voltage is obtained through the amplification effect of the resonator.

The above is only the embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent processes of the present invention are used in the specification and the attached drawings, or directly or indirectly applied to other related technical fields, and all the same principles are included in the protection scope of the present invention.

Claims

1. A spiral resonator for ion trap experiments, comprising: the antenna comprises an input connector (1), an antenna (2), a coil column (3), at least one spiral coil (4) and output connectors (5) with the same number as the spiral coils (4), wherein the input connector (1) is connected with the antenna (2), spiral grooves (31) with the same number as the spiral coils (4) are formed in the outer surface of the coil column (3), the spiral coils (4) are correspondingly arranged in the spiral grooves (31), the spiral coils (4) are correspondingly connected with the output connectors (5), and the antenna (2) and the spiral grooves (31) in the coil column (3) are coaxially arranged.

2. The spiral resonator for ion trap experiments as recited in claim 1, wherein: the number of the spiral coils (4) is two, the two spiral coils (4) form a double-spiral structure, and the angle between the two spiral coils (4) is different by 180 degrees.

3. The spiral resonator for ion trap experiments as recited in claim 1, wherein: the spiral resonator for the ion trap experiment further comprises a shell (61), an upper cover (62) and a lower cover (63), wherein the shell (61) is provided with two oppositely arranged openings (611), the coil column (3) is positioned in the shell (61), and two ends of the coil column (3) are respectively connected in the two openings (611); the upper cover (62) and the lower cover (63) are connected with the shell (61) and respectively cover two openings (611) of the shell (61), the input connector (1) and the antenna (2) are connected with the upper cover (62), each output connector (5) is connected with the lower cover (63), and the lower cover (63) is further provided with a vent hole.

4. The spiral resonator for ion trap experiments as recited in claim 3, wherein: the shell (61) is cuboid, the two openings (611) are located at two ends of the shell (61) in the length direction, and mounting plates (612) are arranged on two opposite side faces of the shell (61) respectively.

5. The spiral resonator for ion trap experiments as recited in claim 3, wherein: set up on upper cover (62) with coaxial screw hole (621) of opening (611), screw hole (621) female connection has antenna fixed plate (7), input joint (1) and antenna (2) all set up on antenna fixed plate (7).

6. The spiral resonator for ion trap experiments as recited in claim 3, wherein: the spiral resonator for the ion trap experiment further comprises two direct current compensation PCB boards (81), two direct current compensation joints (82) and two direct current compensation grounding joints (83); each direct current compensation PCB (81) is arranged at one end, close to the antenna (2), of the coil column (3), each direct current compensation joint (82) and each direct current compensation grounding joint (83) are arranged on the shell (61), and one end, facing the antenna (2), of each spiral coil (4) is sequentially connected with one direct current compensation grounding joint (83), one direct current compensation PCB (81) and one direct current compensation joint (82) in series through a lead (110).

7. The spiral resonator for ion trap experiments according to claim 6, wherein: the coil post (3) is of a hollow structure, and one end, facing the antenna (2), of each spiral coil (4) is inserted into the inner side of the coil post (3) from the outer side of the coil post (3) and then is connected with the direct current compensation grounding connector (83), the direct current compensation PCB (81) and the direct current compensation connector (82).

8. The spiral resonator for ion trap experiments as recited in claim 7, wherein: the spiral resonator for the ion trap experiment further comprises a phase synchronization PCB (91), the phase synchronization PCB (91) is arranged at one end, far away from the antenna (2), of the coil column (3), one end, far away from the antenna (2), of each spiral coil (4) is inserted into the inner side of the coil column (3) from the outer side of the coil column (3) and then is respectively connected with each output connector (5) through a conducting wire (110), and each output connector (5) is connected with the phase synchronization PCB (91) through a conducting wire (110).

9. The spiral resonator for ion trap experiments as recited in claim 8, wherein: the spiral resonator for the ion trap experiment further comprises a sampling PCB (101), a sampling joint (102) and a sampling grounding joint (103); sampling PCB board (101) set up and are in coil post (3) are kept away from the one end of antenna (2), sampling joint (102) and sampling ground connection connect (103) all set up on shell (61), sampling PCB board (101) respectively with sampling ground connection connects (103), sampling joint (102) and arbitrary output connects (5) and passes through wire (110) and connect.

10. The spiral resonator for ion trap experiments according to claim 7, wherein: and reinforcing ribs (32) are arranged in the circumferential direction of the coil column (3).