Microwave radiation and fluorescence enhancement method and device for vehicle-mounted quantum magnetic compass
By optimizing the microwave radiation structure and fluorescence collection method, the problems of insufficient microwave intensity and uniformity were solved, thereby improving the positioning accuracy and information accuracy of the quantum magnetic compass.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-01
- Publication Date
- 2026-04-10
AI Technical Summary
The existing microwave radiation structure of vehicle-mounted quantum magnetic compasses has shortcomings in terms of microwave intensity and microwave field uniformity, which affects the fluorescence collection efficiency.
A method for enhancing microwave radiation and fluorescence, comprising microstrip lines, gap ring resonant structures, and complementary gap ring resonant structures, is designed. By calculating the microstrip line width and resonant structure parameters, the microwave frequency range is optimized to enhance microwave field uniformity. A mirror-smooth metal film is prepared through a deposition process to improve the fluorescence signal reflection and collection efficiency.
This achieves enhanced uniformity of the microwave field and improved fluorescence collection efficiency, ensuring that the quantum magnetic compass provides high-precision positioning information in complex environments.
Smart Images
Figure CN121829490A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The application belongs to the technical field of vehicle-end magnetic signal measurement, and particularly relates to a microwave radiation and fluorescence enhancement method and device for a vehicle-mounted quantum magnetic compass. BACKGROUND
[0002] After the intelligent networked automobile enters the L3 and above automatic driving stage, the positioning and navigation need to give centimeter-level, low-latency, high-trust global pose in the areas where GNSS signal is long-term weakened or even completely disappeared, such as urban canyons, under viaducts, tunnels, underground parking lots, etc. The traditional RTK-GNSS can provide a plane accuracy of <2 cm on open roads, but once the satellite is blocked, the positioning error will drift by meters within 10 s; the visual SLAM and laser SLAM can be textured / geometry matched, but they are prone to "degeneration" in the face of dynamic occlusion, light mutation, long corridor, etc. scene; INS can be short-time recursive, but it is plagued by zero drift. The magnetic compass has the natural advantages of "all-weather, all-terrain, no external infrastructure dependence" because it measures the inherent geomagnetic field of the earth, and can provide absolute heading and initial values of pitch and roll in the environment, and becomes an indispensable basic technology for intelligent networked automobile positioning and navigation.
[0003] The magnetic compass measures the projection of the geomagnetic field vector in the carrier coordinate system through a three-axis fluxgate sensor, and combines the gravity vector output by the accelerometer to calculate the heading angle; when combined with a six-axis IMU, it can also dynamically compensate for the projection error caused by pitch and roll, and realize 360° full attitude output. The vehicle-grade magnetic compass has been iterated to the third generation, providing "satellite-free" lane-level positioning capability for high-speed NOA and autonomous valet parking.
[0004] To further improve the sensitivity, reduce the power consumption and break through the noise limit of μT level of classical magnetic resistance sensor, quantum magnetic compass is expected to be introduced into the field of automobile. Its use of quantum coherence effect of diamond nitrogen-vacancy color center ensemble can realize the magnetic field resolution of fT~pT order, which is 3~4 orders of magnitude higher than that of TMR chip, and can detect 0.1 nT abnormal signal under the background field of 10 μT in the car. The volume is expected to be reduced to 20 mm×15 mm×5 mm, the power consumption is less than 300 mW, which meets the requirements of 20 g vibration and 15 years of life of vehicle. Its output bandwidth can reach 1 kHz through Ramsey interference sequence modulation, which completely covers the maximum 10 Hz of vehicle yaw dynamic. More importantly, the quantum magnetic compass has the characteristics of "intrinsic absolute scale": the Larmor precession frequency γF of the geomagnetic field strictly corresponds to the atomic species, and the 0.05° heading stability can be maintained without temperature and aging calibration, which significantly reduces the system level calibration cost. In the future, with the decrease of laser power consumption, quantum magnetic compass will be deeply integrated with solid-state IMU, UWB and 5G Sidelink to build a "quantum-inertial-communication" integrated chip, so that intelligent networked vehicles can still obtain 0.1° / √h heading drift and centimeter-level position accuracy in the scene without external signals, providing a "quantum compass" for L4 / L5 unmanned driving that never gets lost. However, the microwave radiation structure in the prior art has defects in microwave intensity and microwave field uniformity. SUMMARY
[0005] The purpose of the present application is to provide a microwave radiation and fluorescence enhancement method and device for a vehicle-mounted quantum magnetic compass. The microwave intensity is enhanced, a uniform microwave field is provided in a certain area to realize the synchronous driving of the color center ensemble, and the fluorescence collection is also enhanced. The fine tuning of the structure size parameters can be adjusted by the simulation software to adjust different working frequencies.
[0006] Technical scheme: The microwave radiation and fluorescence enhancement method for the vehicle-mounted quantum magnetic compass comprises the following steps:
[0007] Step 1, design the width of the microstrip line, calculate the width size of the microstrip line by giving the type and dielectric constant substrate thickness of the known material;
[0008] Step 2, design the gap ring resonance structure, determine the required microwave frequency range under the given magnetic field, and then calculate the size information of each parameter of the gap ring resonance structure from the middle value of the microwave frequency range;
[0009] Step 3, design the coupling oscillation of the microwave and the resonance structure;
[0010] Step 4, prepare a uniform and mirror-smooth metal film layer through a deposition process to realize the reflection collection of the fluorescence signal and the pump laser light source, and improve the fluorescence collection efficiency.
[0011] Further, step 1 is specifically: the conductive part of the material is composed of copper or gold metal film, and the coupling is completed by using strip line to input microwave field; the strip part is described by using strip line theory; the bottom of the substrate is a metal structure, and a dielectric material is sandwiched in the middle, and the processing technology is selected according to the demand for dielectric constant; during the transmission of microwave energy, the electromagnetic field lines between the strip conductor and the substrate are not completely in the dielectric material, that is, the mode propagating along the microstrip line is not a pure transverse electromagnetic field, but a quasi-transverse electromagnetic field, at this time the group velocity of the electromagnetic wave propagating on the microstrip line is:
[0012]
[0013] c is the speed of light, is the effective dielectric constant of the substrate material; when there is an external electromagnetic field, the effective dielectric constant is lower than the relative dielectric constant of the substrate material ; so the wavelength of the electromagnetic wave of a certain frequency transmitted in the microstrip line is
[0014]
[0015] wherein, is the frequency of the electromagnetic wave, when , is the width of the microstrip line, is the thickness of the dielectric substrate, and the impedance Z0 of the microstrip line is represented as:
[0016]
[0017] wherein
[0018] ϵ eff = ϵ r +1 2 + ϵ r -1 2 [ 1+12 h W - 1 2 +0.04 1- W h 2 ]
[0019] is the relative dielectric constant, and when , the impedance Z0 of the microstrip line is represented as:
[0020]
[0021] wherein
[0022]
[0023] According to the above formula, the strip line width under a specific impedance is designed.
[0024] Further, the step 2 is specifically: the complementary split ring resonator structure is a planar two-dimensional artificial super material, the property of the super structure is analyzed based on the Babinet principle; a perfect conductive and infinitely thin split ring resonator is placed in an electromagnetic field, and is defined as B 0 and E 0 The scattered electromagnetic field B ‘ and E ‘ is approximately given by the field generated by a resonant magnetic dipole:
[0025]
[0026] Where ω0 is the resonant frequency of the split ring resonator, is the frequency of the electromagnetic field, is the outer product of the unit vector z ̂ itself, and α0 is a geometric factor; if the structure is changed to a complementary split ring resonator, when an external electromagnetic field acts, and The field in z>0 is the field scattered by the complementary split ring resonator and ; in the z<0 region, the formula of the total field is given by the following formula:
[0027]
[0028] Where and is the electromagnetic field reflected by the metal film without etching the complementary split ring resonator, is the magnetic induction intensity under the action of the complementary split ring resonator; because the scattered field and is generated by the current limited in the z=0 plane, so they exist symmetry, such as the component , and of the scattered field must be even functions of z, and , and must be odd functions of z; according to the Babinet principle, if a screen with a small hole is subjected to an incident field and from the direction of z<0, then the total field in the shadow side, that is, the z>0 region, must satisfy the following formula:
[0029]
[0030] c is the speed of light in vacuum, Let be the electric field intensity value of the incident electromagnetic wave. Therefore, the field scattered by the complementary gap ring resonator at z>0 is... and It should be the value produced by the electric dipole p=(1 / c)m
[0031]
[0032] At z<0, considering the symmetry condition, the sign of the dipole changes, and we finally obtain:
[0033]
[0034] Since z=0 - hour Simplified to:
[0035]
[0036] in, =2, and It is the total external field generated by the source and the metal thin film without complementary gap ring resonators; therefore, the complementary gap ring structure responds to the external electromagnetic field and forms an enhanced electromagnetic field.
[0037] Further, step 3 specifically involves: two arc-shaped metal strips in the complementary gap ring resonator are spliced together to form a resonant cavity structure. The metal strips act as inductors at high frequencies, allowing high-frequency current signals to oscillate within the strips, while the gap between the two metal strips acts as a capacitor. This forms a parallel capacitor and inductor structure, creating a resonant circuit where high-frequency electromagnetic waves are amplified through internal resonance. The resonant frequency is represented by the lumped element resistor R, inductor L, and capacitor C. The inductor L / 2 originates from the transmission line structure, while the capacitor C... C From C SRR Coupling between the ground plane and the conductive path; C SRR The losses within the system come from the resistor R. R C R and L R These are the equivalent capacitance and inductance of the proposed structure, respectively; the resonant frequency of the equivalent circuit of the resonant structure is expressed by the following formula:
[0038]
[0039] The quality factor of a resonant structure can be expressed by the following formula:
[0040] .
[0042] Further, the step 4 is specifically: placing a complementary gap ring structure behind the diamond to improve the fluorescence collection efficiency; in the NV measurement system in the diamond, the color center is polarized by the 532 nm laser, and the emitted fluorescence is scattered into a 4π solid angle.
[0043] The application also discloses a computer device, including a memory, a processor and a computer program stored in the memory, and the processor executes the computer program to realize the steps of the method.
[0044] The application also discloses a computer readable storage medium, which stores a computer program / instruction, and the computer program / instruction is executed by a processor to realize the steps of the method.
[0045] The application also discloses a computer program product, which includes a computer program / instruction, and the computer program / instruction is executed by a processor to realize the steps of the method.
[0046] The application also discloses a microwave radiation and fluorescence enhancement device for a vehicle-mounted quantum magnetic compass, which includes a collection device, a diamond NV color center energy level structure and a complementary gap ring structure from top to bottom.
[0047] Advantages: Compared with the prior art, the application has the following advantages: BRIEF DESCRIPTION OF DRAWINGS
[0048] Figure 1 The flowchart of the application.
[0049] Figure 2 The schematic diagram of the complementary gap ring structure.
[0050] Figure 3 The schematic diagram of fluorescence collection enhancement.
[0051] Figure 4 The diamond NV color center energy level structure, wherein (a) is a nitrogen vacancy color center in a diamond lattice; and (b) is an energy level change of the nitrogen vacancy color center under the action of a magnetic field.
[0052] Figure 5 The schematic diagram of microwave local enhancement of the complementary gap ring structure. DETAILED DESCRIPTION
[0053] The technical solutions of the application will be further described below with reference to the drawings.
[0054] This invention provides a microwave radiation and fluorescence enhancement structure design for an in-vehicle quantum magnetic compass, aiming to overcome the shortcomings of existing microwave radiation structures in terms of microwave intensity and microwave field uniformity, and to provide fluorescence enhancement capabilities.
[0055] like Figure 1 As shown, a microwave radiation and fluorescence enhancement method for a vehicle-mounted quantum magnetic compass according to the present invention includes the following steps:
[0056] Step 1: Design the microstrip line width. The microstrip line width is calculated based on the known material type, dielectric constant, and substrate thickness.
[0057] Step 2: Design the gap ring resonant structure. Under a given magnetic field, determine the required microwave frequency range, and then calculate the size information of each parameter of the gap ring resonant structure from the median value of the microwave frequency range.
[0058] Step 3: Design the coupled oscillation between the microwave and the resonant structure;
[0059] Step 4: A uniform and mirror-smooth metal film is prepared by deposition process to realize the reflection and collection of fluorescence signals and pump laser source, thereby improving the fluorescence collection efficiency.
[0060] Figure 2 This is a schematic diagram of the structure. The structure is made of a thin metallic material; the conductive parts can be composed of copper or gold thin films, and microwave field input coupling can be achieved using striplines. The stripline portion can be described using stripline theory. A substrate typically has a metallic bottom with a dielectric material sandwiched in the middle, and different processing techniques can be selected based on requirements such as dielectric constant. During microwave energy transmission, the electromagnetic field lines between the strip conductor and the substrate are not entirely within the dielectric material; that is, the propagation mode along the microstrip line is not a pure transverse electromagnetic field, but a quasi-transverse electromagnetic field. The group velocity of the electromagnetic wave propagating within the microstrip line is:
[0061]
[0062] c is the speed of light. The effective dielectric constant is the dielectric constant of the substrate material. When an external electromagnetic field is present, the effective dielectric constant is typically lower than the relative dielectric constant of the substrate material. Therefore, the wavelength of an electromagnetic wave of a certain frequency propagating in a microstrip is... for:
[0063]
[0064] At this point, the impedance Z0 of the microstrip line can be expressed as
[0065] when hour
[0066]
[0067] where
[0068] ϵ eff = ϵ r +1 2 + ϵ r -1 2 [ 1+12 h W - 1 2 +0.04 1- W h 2 ]
[0069] While When
[0070]
[0071] where
[0072]
[0073] Therefore, the strip width for a specific impedance can be designed according to the above formula.
[0074] The complementary split-ring resonator structure is a planar two-dimensional artificial super material, and the properties of the superstructure can be analyzed based on the Babinet principle. A perfect conductive and infinitely thin split-ring resonator is placed in an electromagnetic field, which is defined as B 0 and E 0 After ignoring the high-order dipole field and cross-polarization effect, the scattered electromagnetic field B ‘ and E ‘ can be approximately given by the field generated by the resonant magnetic dipole.
[0075]
[0076] where ω0 is the resonant frequency of the split-ring resonator, and α0 is the geometric factor. If the structure is changed to a complementary split-ring resonator, when an external electromagnetic field acts on it, and The field in z>0 is the field scattered by the complementary split-ring resonator and In the z<0 region, the formula of the total field is given by the following formula:
[0077]
[0078] where and is the electromagnetic field reflected by the metal film without etching the complementary split-ring resonator. Because the scattered field and are generated by currents confined to the z = 0 plane, so they are symmetric, like the components of the scattered field , and must be even functions of z, while , and must be odd functions of z. According to the Babinet principle, if a screen with a small hole is subjected to an incident field and coming from the z < 0 direction, then the total field in the shadow side, i.e. in the z > 0 region, must satisfy the following equation:
[0079]
[0080] Therefore, the fields scattered by the complementary split-ring resonator at z > 0, and should be the values generated by an electric dipole p = (1 / c)m
[0081]
[0082] At z < 0, considering the symmetry condition, the sign of the dipole is changed. Finally, we can get:
[0083]
[0084] where c is the speed of light in vacuum. For lossy or thick structures, and in conventional circuit boards, the above equations are only approximate solutions for ideal conditions. Since z = 0 - , can be simplified as:
[0085]
[0086] where = 2, and is the total external field generated by the source and the metal thin film without the complementary split-ring resonator. Therefore, the complementary split-ring structure can respond to the external electromagnetic field, forming an enhanced electromagnetic field, as shown in Figure 5 .
[0087] When a resonator is loaded near a microstrip transmission line, if one resonator element is close enough to a transmission line, coupling between the line and the resonator occurs. Depending on the topology, orientation and position of the transmission line and the resonator, the coupling between the transmission line and the resonator can be electric, magnetic, magneto-electric (or hybrid), or can be canceled out. That is, the symmetry plane of the resonator and the symmetry plane of the line must be of different electromagnetic types, one must be an electric wall and the other must be a magnetic wall. If the symmetry is maintained, the coupling between the microstrip line and the resonator will be prevented and the resonant structure will not be excited. The electric / magnetic wall here is a virtual plane with anti-symmetric / symmetric charge distribution on both sides, and the even and odd modes are symmetric and anti-symmetric modes. The complementary split ring structure can be regarded as an electric dipole.
[0088] The two circular arc-shaped metal strips in the complementary split ring resonator are spliced together to form a resonant cavity structure. The metal strips can act as inductors at high frequencies, allowing high-frequency current signals to oscillate inside the strips, and the gap between the two metal strips can act as a capacitor structure. In this way, a parallel inductor and capacitor structure can be formed to form a resonant circuit, and the internal resonance of high-frequency electromagnetic waves is enhanced. The resonant frequency can be represented by the lumped element resistance (R), inductance (L) and capacitance (C). The inductance L / 2 comes from the transmission line structure, and the capacitance CC comes from the coupling between the ground plane and the conductive path of the CSRR. The loss in the CSRR system comes from the resistance RR, where CR and LR are the equivalent capacitance and inductance of the proposed structure, respectively. The resonant frequency of the equivalent circuit of the resonant structure can be represented by the following formula:
[0089]
[0090] The quality factor of the resonant structure can be represented by the following formula:
[0091]
[0092] Since the structure is a microwave radiation structure for manipulating the nitrogen vacancy color center ensemble, the nitrogen vacancy color center in the diamond is very close to the dipole source. At this time, the induction area of the microwave near field is effective, and attention should also be paid to the time of forming the microwave extreme value, that is, in some microwave field manipulation of the nitrogen vacancy color center ensemble, a shorter time is needed to reach the resonance state, that is, to reach the working state. In actual testing, the full width at half maximum and the center frequency can be calculated to calculate the quality factor value of the resonant structure, and the time required to reach the strongest microwave intensity can be calculated from the quality factor value. The shorter the better.
[0093] In terms of improving fluorescence collection efficiency, placing a complementary split ring structure behind the diamond can improve the fluorescence collection efficiency. The NV color center structure and energy level in the diamond are as follows Figure Threeshown. In the NV measurement system, the color center is usually polarized by a 532 nm laser, and the emitted fluorescence is scattered into a 4π solid angle, only a small part of which is collected by the collection device placed on one side of the diamond. Since the diamond has a high reflectivity of 2.4, the total internal reflection angle obtained at this reflectivity will reduce the fluorescence collection efficiency to a very low level. When a complementary gap ring structure is placed below the ensemble of excited nitrogen vacancy color centers, that is, there is a reflective metal film, the downward transmitted fluorescence is also reflected upward, and the collected signal light flux increases, as shown in Figure 4 The improvement of fluorescence photon collection efficiency helps the accuracy and sensitivity of optical reading of quantum states, the more fluorescence collected, the more accurate the information of magnetic field measurement.
Claims
1. A method for enhancing microwave radiation and fluorescence for a vehicle-mounted quantum magnetic compass, characterized in that, Includes the following steps: Step 1: Design the microstrip line width. The microstrip line width is calculated based on the known material type, dielectric constant, and substrate thickness. Step 2: Design the gap ring resonant structure. Under a given magnetic field, determine the required microwave frequency range, and then calculate the size information of each parameter of the gap ring resonant structure from the median value of the microwave frequency range. Step 3: Design the coupled oscillation between the microwave and the resonant structure; Step 4: A uniform and mirror-smooth metal film is prepared by deposition process to realize the reflection and collection of fluorescence signals and pump laser source, thereby improving the fluorescence collection efficiency.
2. The microwave radiation and fluorescence enhancement method for a vehicle-mounted quantum magnetic compass according to claim 1, characterized in that, Step 1 specifically involves: the conductive portion is composed of a copper or gold metal film, and a stripline is used to input the microwave field for coupling; the stripline portion is described using stripline theory; the bottom of the substrate is a metal structure with a dielectric material sandwiched in the middle, and the processing technology is selected according to the required dielectric constant; during the transmission of microwave energy, the electromagnetic field lines between the strip conductor and the substrate are not entirely within the dielectric material, that is, the mode propagating along the microstrip line is not a pure transverse electromagnetic field, but a quasi-transverse electromagnetic field. At this time, the group velocity of the electromagnetic wave propagating within the microstrip line is: ； c is the speed of light. The effective dielectric constant is the dielectric constant of the substrate material; when an external electromagnetic field is present, the effective dielectric constant is lower than the relative dielectric constant of the substrate material. Therefore, the wavelength of an electromagnetic wave of a certain frequency propagating in a microstrip is... for: ； in, For the frequency of the electromagnetic signal, when hour, For microstrip width, Given the thickness of the dielectric substrate, the impedance Z0 of the microstrip line is expressed as: ； in ； is the relative permittivity, while when When the impedance Z0 of the microstrip line is given by: ； in ； Based on the above formula, design the strip width for a specific impedance.
3. The microwave radiation and fluorescence enhancement method for a vehicle-mounted quantum magnetic compass according to claim 1, characterized in that, Step 2 specifically involves: the complementary gap ring resonator structure is a planar two-dimensional artificial metamaterial, and the properties of the metastructure are analyzed based on Babinet's principle; a perfectly conductive and infinitely thin gap ring resonator is placed in an electromagnetic field, defined as B... 0 and E 0 Scattered electromagnetic field B ‘ and E ‘ The field approximation produced by the resonant magnetic dipole is given as follows: ； Where ω0 is the resonant frequency of the gap ring resonator. The frequency of the electromagnetic field, unit vector Its own outer product represents along The projection of α0 is a geometric factor; if the structure is changed to a complementary gap ring resonator, under the action of an external electromagnetic field... and When light shines from the position z < 0, the field in the position z > 0 is the field scattered by the complementary gap ring resonator. and In the region z < 0, the formula for the total field is given by the following formula: ； in and It is the electromagnetic field reflected by the metal thin film of the complementary gap ring resonator that has not been etched. The magnetic flux density is the magnetic flux density under the action of a complementary gap ring resonator; because of the scattered field. and It is generated by a current confined within the z=0 plane, therefore they exhibit symmetry, as seen in the components of the scattered field. , and It must be an even function of z, and , and It must be an odd function of z; according to Babinet's principle, if a screen with a pinhole is subjected to an incident field from the direction z < 0... and Therefore, the total field on the shaded side, i.e., the region z>0, satisfies the following formula: ； c is the speed of light in a vacuum. Let be the electric field intensity of the incident electromagnetic wave, and be the field scattered by the complementary gap ring resonator at z>
0. and It should be the value produced by the electric dipole p=(1 / c)m ； At z<0, considering the symmetry condition, the sign of the dipole changes, and we finally obtain: ； Since z=0 - hour Simplified to: ； in, =2, and It is the total external field generated by the source and the metal thin film without complementary gap ring resonators; therefore, the complementary gap ring structure responds to the external electromagnetic field and forms an enhanced electromagnetic field.
4. The microwave radiation and fluorescence enhancement method for a vehicle-mounted quantum magnetic compass according to claim 1, characterized in that, Step 3 specifically involves: Two arc-shaped metal strips in the complementary gap ring resonator are spliced together to form a resonant cavity structure. The metal strips act as inductors at high frequencies, allowing high-frequency current signals to oscillate within them, while the gap between the two metal strips acts as a capacitor. This creates a parallel capacitor and inductor structure, forming a resonant circuit, where high-frequency electromagnetic waves are amplified through resonance. The resonant frequency is represented by the lumped element resistor R, inductor L, and capacitor C. The inductance L / 2 comes from the transmission line structure, while the capacitor C... C From C SRR Coupling between the ground plane and the conductive path; C SRR The losses within the system come from the resistor R. R C R and L R These are the equivalent capacitance and inductance of the proposed structure, respectively; the resonant frequency of the equivalent circuit of the resonant structure is expressed by the following formula: ； The quality factor of a resonant structure is expressed by the following formula: 。 5. The microwave radiation and fluorescence enhancement method for a vehicle-mounted quantum magnetic compass according to claim 1, characterized in that, Step 4 specifically involves placing a complementary gap ring structure behind the diamond to improve fluorescence collection efficiency; in the NV measurement system in the diamond, the color center is polarized by a 532 nm laser, and the emitted fluorescence is scattered into a 4π solid angle.
6. A computer device comprising a memory, a processor, and a computer program stored in the memory, characterized in that, The processor executes the computer program to implement the steps of the method of claim 1.
7. A computer-readable storage medium having a computer program / instructions stored thereon, characterized in that, When the computer program / instructions are executed by the processor, they implement the steps of the method of claim 1.
8. A computer program product comprising a computer program / instructions, characterized in that, When the computer program / instructions are executed by the processor, they implement the steps of the method of claim 1.
9. A microwave radiation and fluorescence enhancement device for a vehicle-mounted quantum magnetic compass, characterized in that, The structure, from top to bottom, includes a collection device, a diamond NV color center energy level structure, and a complementary gap ring structure. The complementary gap ring resonant structure is used for microwave control enhancement of the vehicle-mounted solid-state quantum ensemble magnetic compass, enabling rapid and uniform ensemble quantum state control and precise quantum state control and extraction of the information to be measured. The complementary gap ring resonant structure is mounted on PCBs or ceramic substrates with different dielectric constants or directly fabricated on diamond sensing units through deposition and other processes.