CN215008554U - Antenna system of medical detection device and medical detection device - Google Patents
Antenna system of medical detection device and medical detection device Download PDFInfo
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- CN215008554U CN215008554U CN202120310155.0U CN202120310155U CN215008554U CN 215008554 U CN215008554 U CN 215008554U CN 202120310155 U CN202120310155 U CN 202120310155U CN 215008554 U CN215008554 U CN 215008554U
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Abstract
The utility model discloses an antenna system of a medical detection device and the medical detection device, wherein the medical detection device comprises a control device and a detection device, and the antenna system comprises a first antenna system arranged in a detection device shell and a second antenna system arranged in a control device shell; the first antenna system comprises a first PCB and a first antenna radiator, wherein the first antenna radiator is provided with a first feeding point and a first grounding point, and the first feeding point and the first grounding point are respectively connected with the first PCB; the second antenna system comprises a second PCB and a second antenna radiating body, wherein a second feeding point and a second grounding point are arranged on the second antenna radiating body, and the second feeding point and the second grounding point are respectively connected with the second PCB. The utility model discloses can satisfy the miniaturization of antenna structure, size to can realize carrying out the requirement of microwave signal transmission communication externally at the equipment in human complex environment.
Description
Technical Field
The utility model relates to a wireless communication technology field especially relates to a medical treatment detection device's antenna system and medical treatment detection device.
Background
With the rapid development of medical technology, more novel noninvasive medical devices provide more convenient ways for human body detection. Wireless, small, and portable medical detection devices are in greater demand in the medical market. Therefore, it is very important to transmit signals inside and outside the human body using the antenna technology. Since human tissue belongs to high dielectric and high loss medium, it is difficult to effectively transmit microwave signals in high dielectric and high loss complex human environment, which provides new challenges and requirements for the structure, size and performance of the antenna.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that will solve is: provided are an antenna system for a medical detection device and a medical detection device, which can realize good signal transmission in a high dielectric and high loss environment while realizing miniaturization.
In order to solve the technical problem, the utility model discloses a technical scheme be: an antenna system of a medical detection device, the medical detection device comprising a control device and a detection device, the antenna system comprising a first antenna system disposed within a housing of the detection device and a second antenna system disposed within a housing of the control device; the first antenna system comprises a first PCB and a first antenna radiator, wherein a first feeding point and a first grounding point are arranged on the first antenna radiator, and the first feeding point and the first grounding point are respectively connected with the first PCB; the second antenna system comprises a second PCB and a second antenna radiator, wherein a second feeding point and a second grounding point are arranged on the second antenna radiator, and the second feeding point and the second grounding point are respectively connected with the second PCB.
Further, still include first support, first support is arranged in on the first PCB board, first antenna radiator set up in on the first support.
Further, the first support is cylindrical, and the first antenna radiator spirally surrounds the first support.
Further, the first antenna radiator laser etching is arranged on the inner wall of the shell of the detection device.
Further, the second antenna radiator is a serpentine trace.
Further, the second PCB is disposed on a sidewall of a housing of the control device.
Furthermore, a clearance area is arranged between the second PCB and the shell of the control device, and the second antenna radiator is arranged above the clearance area.
Further, the second antenna radiator is perpendicular to the second PCB.
Further, the second antenna radiator is spirally routed.
The utility model also provides a medical treatment detection device, include as above medical treatment detection device's antenna system.
The beneficial effects of the utility model reside in that: the utility model discloses can satisfy the miniaturization of antenna structure, size to can realize carrying out the requirement of microwave signal transmission communication externally at the equipment in human complex environment.
Drawings
Fig. 1 is a schematic structural diagram of a detection device according to a first embodiment of the present invention;
fig. 2 is an exploded schematic view of a control device according to a first embodiment of the present invention;
fig. 3 is a schematic working diagram of a medical detection device according to a first embodiment of the present invention;
fig. 4 is a first schematic structural diagram of a first antenna system according to a first embodiment of the present invention;
fig. 5 is a schematic structural diagram of a first antenna system according to a first embodiment of the present invention;
fig. 6 is a schematic structural diagram of a second antenna system according to a first embodiment of the present invention;
fig. 7 is a first schematic structural diagram of a second antenna system according to a second embodiment of the present invention;
fig. 8 is a second schematic structural diagram of a second antenna system according to a second embodiment of the present invention;
fig. 9 is a third schematic structural diagram of a second antenna system according to a second embodiment of the present invention;
fig. 10 is a fourth schematic structural diagram of a second antenna system according to a second embodiment of the present invention;
fig. 11 is a schematic view of a simulation cube according to a third embodiment of the present invention;
fig. 12 is a schematic view of an electric field on the surface of a cube according to a third embodiment of the present invention;
fig. 13 is a schematic diagram of S11 parameters of an antenna in the control device according to the third embodiment of the present invention;
fig. 14 is a schematic diagram of S22 parameters of an antenna in a detection apparatus according to a third embodiment of the present invention.
Description of reference numerals:
100. a detection device; 200. a control device; 300. a first antenna system; 400. a second antenna system;
101. a first housing; 201. a second housing;
301. a first PCB board; 302. a first antenna radiator; 303. a first feeding point; 304. a first ground point; 305. a first bracket;
401. a second PCB board; 402. a second antenna radiator; 403. a second feeding point; 404. a second ground point; 405. a headroom region.
Detailed Description
In order to explain the technical content, the objects and the effects of the present invention in detail, the following description is made in conjunction with the embodiments and the accompanying drawings.
Referring to fig. 1-2, an antenna system of a medical detection device, the medical detection device includes a control device and a detection device, the antenna system includes a first antenna system disposed in a housing of the detection device and a second antenna system disposed in the housing of the control device;
the first antenna system comprises a first PCB and a first antenna radiator, wherein a first feeding point and a first grounding point are arranged on the first antenna radiator, and the first feeding point and the first grounding point are respectively connected with the first PCB;
the second antenna system comprises a second PCB and a second antenna radiator, wherein a second feeding point and a second grounding point are arranged on the second antenna radiator, and the second feeding point and the second grounding point are respectively connected with the second PCB.
From the above description, the beneficial effects of the present invention are: the miniaturization is realized, and meanwhile, the good transmission of signals can be realized in the environment with high dielectric and high loss.
Further, still include first support, first support is arranged in on the first PCB board, first antenna radiator set up in on the first support.
Further, the first support is cylindrical, and the first antenna radiator spirally surrounds the first support.
From the above description, the antenna volume can be reduced, and the antenna miniaturization can be realized.
Further, the first antenna radiator laser etching is arranged on the inner wall of the shell of the detection device.
As can be seen from the above description, the cost of the bracket can be reduced.
Further, the second antenna radiator is a serpentine trace.
From the above description, the antenna volume can be reduced, and the antenna miniaturization can be realized.
Further, the second PCB is disposed on a sidewall of a housing of the control device.
From the above description, it can be seen that the purpose of increasing the antenna headroom can be achieved, and the antenna performance can be improved.
Furthermore, a clearance area is arranged between the second PCB and the shell of the control device, and the second antenna radiator is arranged above the clearance area.
As can be seen from the above description, no metal area is arranged above and below the antenna, the clearance is increased, and the directional pattern and the antenna performance are improved.
Further, the second antenna radiator is perpendicular to the second PCB.
As can be seen from the above description, the radiation direction can be changed, the radiation efficiency can be increased, and the antenna can be miniaturized and space-saving.
Further, the second antenna radiator is spirally routed.
The utility model also provides a medical treatment detection device, include as above medical treatment detection device's antenna system.
Example one
Referring to fig. 1-6, a first embodiment of the present invention is: an antenna system of a medical detection device can be applied to high-dielectric and high-loss environments (such as human bodies).
The medical detection device comprises a detection device and a control device, and the antenna system comprises a first antenna system and a second antenna system; as shown in fig. 1, the first antenna system 300 is disposed in the housing of the detection apparatus 100, that is, the detection apparatus 100 includes a first housing 101 and the first antenna system 300 disposed in the first housing 101; as shown in fig. 2, the second antenna system 400 is disposed in the housing of the control device 200, that is, the control device 200 includes a second housing 201 and the second antenna system 400 disposed in the second housing 201.
In which the detection device 100 operates inside the human body (e.g., inside the abdominal cavity) and the control device 200 operates outside the human body, proximate to the surface of the human body, as shown in fig. 3. Data transmission is carried out between the two devices through the antenna, the internal detection device transmits the internal detection data of the human body through the antenna, signals penetrate through the human body and are transmitted to the external control device, and the external control device receives the signals through the antenna.
As shown in fig. 4, the first antenna system 300 includes a first PCB 301 and a first antenna radiator 302, the first antenna radiator 302 is disposed above the first PCB 301, a first feeding point 303 and a first grounding point 304 are disposed on the first antenna radiator 302, and the first feeding point 303 and the first grounding point 304 are respectively connected to the first PCB 301. The first feeding point is a starting point of the first antenna radiator and is connected with the first PCB through the spring plate, welding and the like to feed the antenna. The first grounding point mainly adjusts the impedance of the antenna and is connected with a grounding layer on the first PCB board through a spring plate or a welding mode.
Further, the first antenna system 300 further includes a first bracket 305, the first bracket 305 is disposed on the first PCB board 301, and the first antenna radiator 302 is disposed on the first bracket 305. Preferably, the first support 305 has a cylindrical shape, and the first antenna radiator 302 is spirally wound around the first support 305. Namely, the antenna wire is wound on the first support in a spiral winding mode, so that the miniaturization of the antenna is realized. The specific shape of the bracket can be determined according to the shape of the detection device, in this embodiment, two ends of the detection device are bullet-shaped, and the first antenna system is disposed near one end of the detection device, so that the first bracket can be in a circular truncated cone shape. The first antenna radiator may be placed on the first holder in the form of FPC, LDS, or the like.
As shown in fig. 5, in other embodiments, the first support is not needed, and the trace of the first antenna radiator 302 is directly disposed on the inner wall of the housing (i.e. the first housing 101) of the detection apparatus by laser etching, so as to conform to the outer housings with different shapes.
As shown in fig. 6, the second antenna system 400 includes a second PCB 401 and a second antenna radiator 402, the second antenna radiator 402 is disposed above the second PCB 401, a second feeding point 403 and a second grounding point 404 are disposed on the second antenna radiator 402, and the second feeding point 403 and the second grounding point 404 are respectively connected to the second PCB 401. The second feeding point is a starting point of a second antenna radiator and is connected with the second PCB through a spring plate, welding and the like to feed the antenna. The second grounding point mainly adjusts the impedance of the antenna and is connected with a grounding layer on the second PCB board through a spring plate or a welding mode.
Further, in order to achieve antenna miniaturization, the second antenna radiator 402 is a serpentine trace.
Likewise, the second antenna system may also include a second support (not shown) disposed on the second PCB, and the second antenna radiator may be disposed on the second support through FPC, LDS, or the like. In other embodiments, the second antenna radiator may also be disposed on the inner wall of the housing of the control device by laser etching.
The antenna system of the embodiment can work in the environment with high dielectric and high loss (such as human body), and can work normally in the human body environment which is difficult to penetrate electromagnetic waves, so that good signal transmission is realized; and the size is small, the miniaturization of the antenna can be realized, and the performance and size requirements of the antenna in a micro device can be met.
Example two
Referring to fig. 7 to 10, this embodiment is another implementation manner of the second antenna system in the first embodiment.
1. As shown in fig. 7, the second PCB board 401 is disposed on a side wall of the housing (i.e., the second housing 201) of the control device. At this time, the horizontal plane of the second PCB board 401 may be perpendicular to the horizontal plane of the second antenna radiator 402. Further, the second PCB may cover a circle of the inner side wall of the housing, or may cover only a portion of the inner side wall of the housing. The arrangement mode can increase the clearance of the antenna and improve the performance of the antenna.
2. As shown in fig. 8, a clearance area 405 is provided between the second PCB 401 and the housing of the control device (i.e., the second housing 201), and the second antenna radiator 402 is disposed above the clearance area 405. By placing the antenna on one side of the PCB, no metal area is left above and below the antenna, the clearance can be increased, and the directional pattern and the antenna performance can be improved.
3. As shown in fig. 9, the second antenna radiator 402 is perpendicular to the second PCB board 401. Namely, the antenna radiator and the PCB are vertically arranged, the radiation direction can be changed, the radiation efficiency is increased, the miniaturization of the antenna can be realized, and the space is saved.
4. As shown in fig. 10, the second antenna radiator 402 follows a spiral and is placed between the second PCB board and the housing of the control device (referred to as the upper case, not shown).
In this embodiment, the antenna may be implemented in various forms, and may be easily conformal to different devices.
EXAMPLE III
Referring to fig. 11 to 14, the present embodiment is an analog simulation of the antenna system of the above embodiment.
In this embodiment, HFSS is applied to complete simulation, the simulation center frequency is 433MHz, and the simulated antenna works in a human body environment, and the dielectric constant of human tissue is set to 56, and the electrical conductivity is set to 0.98.
As shown in fig. 11, this example simulates human tissue in a cube having a cubic dimension of 500mm by 200mm, a dielectric constant of 56, and an electrical conductivity of 0.98. The detection device was placed at the center of the cube and 100mm away from the surface of the cube (i.e., the surface having a length of 500mm x 500 mm), simulating the state in which the detection device transmits data to the outside inside of the human body.
FIG. 12 is a plot of the electric field intensity at the surface of a cube (simulating the surface of a human body) with the electric field maximum region at the center position, exceeding 2V/m, illustrating that a signal can be received by an external control device through the body.
Fig. 13 is a schematic diagram of S11 parameters of an antenna in a control device, and fig. 14 is a schematic diagram of S22 parameters of an antenna in a detection device. It can be seen that the antenna system can achieve antenna miniaturization at low frequencies (e.g., 433MHz), and can meet performance and size requirements in miniature devices.
To sum up, the antenna system of the medical detection device and the medical detection device provided by the utility model can work in high dielectric and high loss environment (such as human body), and can work normally in human body environment where electromagnetic waves are difficult to penetrate, so as to realize good signal transmission; and the size is small, the miniaturization of the antenna can be realized, and the performance and size requirements of the antenna in a micro device can be met. The antenna can be realized in various forms, and can be conveniently conformal with different devices. The utility model discloses can satisfy the miniaturization of antenna structure, size to can realize carrying out the requirement of microwave signal transmission communication externally at the equipment in human complex environment.
The above mentioned is only the embodiment of the present invention, and not the limitation of the patent scope of the present invention, all the equivalent transformations made by the contents of the specification and the drawings, or the direct or indirect application in the related technical field, are included in the patent protection scope of the present invention.
Claims (10)
1. An antenna system of a medical detection device, which is characterized in that the medical detection device comprises a control device and a detection device, wherein the antenna system comprises a first antenna system arranged in a shell of the detection device and a second antenna system arranged in the shell of the control device;
the first antenna system comprises a first PCB and a first antenna radiator, wherein a first feeding point and a first grounding point are arranged on the first antenna radiator, and the first feeding point and the first grounding point are respectively connected with the first PCB;
the second antenna system comprises a second PCB and a second antenna radiator, wherein a second feeding point and a second grounding point are arranged on the second antenna radiator, and the second feeding point and the second grounding point are respectively connected with the second PCB.
2. The medical detection device antenna system according to claim 1, further comprising a first bracket disposed on the first PCB board, the first antenna radiator being disposed on the first bracket.
3. The medical sensing device antenna system of claim 2, wherein the first support is cylindrical and the first antenna radiator is helically wrapped around the first support.
4. The medical detection device antenna system of claim 1, wherein the first antenna radiator is laser engraved on an inner wall of a housing of the detection device.
5. The medical detection device antenna system of claim 1, wherein the second antenna radiator is serpentine routed.
6. The medical detection device antenna system according to claim 1 or 5, wherein the second PCB board is disposed on a side wall of a housing of the control device.
7. The medical sensing device antenna system of claim 1 or 5, wherein a clearance area is provided between the second PCB board and the housing of the control device, and the second antenna radiator is disposed above the clearance area.
8. The medical detection device antenna system of claim 1 or 5, wherein the second antenna radiator is perpendicular to the second PCB board.
9. The medical sensing device antenna system of claim 1, wherein the second antenna radiator is helically routed.
10. A medical examination device, characterized in that it comprises an antenna system of a medical examination device according to any of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120310155.0U CN215008554U (en) | 2021-02-03 | 2021-02-03 | Antenna system of medical detection device and medical detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120310155.0U CN215008554U (en) | 2021-02-03 | 2021-02-03 | Antenna system of medical detection device and medical detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215008554U true CN215008554U (en) | 2021-12-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120310155.0U Active CN215008554U (en) | 2021-02-03 | 2021-02-03 | Antenna system of medical detection device and medical detection device |
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| Country | Link |
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| CN (1) | CN215008554U (en) |
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2021
- 2021-02-03 CN CN202120310155.0U patent/CN215008554U/en active Active
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