CN219921204U - Microwave antenna for microwave therapeutic apparatus and microwave therapeutic apparatus - Google Patents
Microwave antenna for microwave therapeutic apparatus and microwave therapeutic apparatus Download PDFInfo
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- CN219921204U CN219921204U CN202320612421.4U CN202320612421U CN219921204U CN 219921204 U CN219921204 U CN 219921204U CN 202320612421 U CN202320612421 U CN 202320612421U CN 219921204 U CN219921204 U CN 219921204U
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- microwave
- annular plate
- therapeutic apparatus
- antenna
- bottom plate
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- 230000001225 therapeutic effect Effects 0.000 title claims abstract description 25
- 238000003466 welding Methods 0.000 claims description 5
- 229910000838 Al alloy Inorganic materials 0.000 claims description 4
- 230000000694 effects Effects 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000002560 therapeutic procedure Methods 0.000 description 2
- 208000002193 Pain Diseases 0.000 description 1
- 230000004071 biological effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 210000004027 cell Anatomy 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 210000005260 human cell Anatomy 0.000 description 1
- 230000005426 magnetic field effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
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- Radiation-Therapy Devices (AREA)
Abstract
The utility model relates to the technical field of microwave therapeutic apparatuses, in particular to a microwave antenna for a microwave therapeutic apparatus and the microwave therapeutic apparatus. It comprises the following steps: the bottom plate of vertical setting, the middle part of bottom plate is equipped with the mounting hole that is used for installing the wave guide, and the bottom plate is connected with the annular board of loudspeaker form, and the medial surface of annular board forms the microwave reflecting surface. According to the utility model, the horn antenna is arranged, and corresponding parameters are optimized, so that the emitted microwaves have good uniformity, and the frequency bandwidth of the microwaves is large, so that a proper amount of adjustment can be performed.
Description
Technical Field
The utility model relates to the technical field of microwave therapeutic apparatuses, in particular to a microwave antenna for a microwave therapeutic apparatus and the microwave therapeutic apparatus.
Background
Microwave therapy is mainly realized by thermal effect and biological effect, and because magnetic resistance existing between polar molecules has damping effect on oscillation, microwave energy is consumed and heat is generated, and the activity of human cells is increased by utilizing the heat, so that the curative effect is achieved. At present, most of various medical institutions mainly adopt microwave therapeutic apparatuses when performing microwave therapy; the inventor carries out anatomical analysis and experiments on various types of microwave therapeutic apparatuses, and discovers that the uniformity of microwaves emitted by a plurality of microwave therapeutic apparatuses is poor, and local stinging, namely, overhigh local temperature, can occur on a body heating part during the experiments.
Disclosure of Invention
The utility model aims at overcoming the defects of the prior art and providing a microwave antenna for a microwave therapeutic instrument; the microwave antenna has better microwave uniformity.
A microwave antenna for a microwave therapeutic apparatus, comprising: the bottom plate of vertical setting, the middle part of bottom plate is equipped with the mounting hole that is used for installing the wave guide, and the bottom plate is connected with the annular board of loudspeaker form, and the medial surface of annular board forms the microwave reflecting surface.
Further, the inner diameter of the annular plater is the diameter of the inner caliber, C is the speed of light, f is the frequency, epsilon 1 is the dielectric constant of air, and n is an integer.
Preferably, the inner caliber diameter of the annular plate is R, the caliber width of the annular plate is a, and the outer caliber diameter of the annular plate is R; r=200-203 mm; r=145-147 mm; a=120-123 mm.
Further, the annular plate is an aluminum alloy plate, and the annular plate and the bottom plate are fixed through ultrasonic welding.
The microwave therapeutic apparatus includes a casing, a power supply, a magnetron, a waveguide tube and a microwave antenna.
The utility model has the beneficial effects that: according to the utility model, the horn antenna is arranged, and corresponding parameters are optimized, so that the emitted microwaves have better uniformity, and the frequency bandwidth of the microwaves is larger and can be adjusted appropriately.
Secondly: the antenna radiator of the present utility model also has other advantages: and the magnetron is completely matched, and the following advantages are proved by testing:
1. the impedance is matched with the waveguide tube and the magnetron, so that the efficiency of the magnetron is improved by about 20%.
2. As the size of the antenna is matched with the wavelength, the ratio of the diameter of the wave outlet to the length of the antenna is proved to be good in uniformity of the outgoing wave and good in human body feel through clinical tests;
3. the diameter of the wave outlet is calculated and tested for multiple times, so that the interference of the radiated wave outlet microwaves to the surrounding environment is minimized.
Drawings
Fig. 1 is a schematic diagram of a microwave therapeutic apparatus according to this embodiment.
Fig. 2 is a schematic diagram of the antenna of the present embodiment.
Fig. 3 is a schematic side view of the antenna.
Fig. 4 is a graph of the antenna exit field strength profile.
Fig. 5 is a schematic diagram of a structural combination of a microwave therapeutic apparatus.
The reference numerals are:
1-a microwave therapeutic apparatus; 2-microwave antenna; 21-a bottom plate; 22-annular plate.
Detailed Description
The utility model is described in detail below with reference to the accompanying drawings. As shown in fig. 1 to 5.
Example 1: a microwave antenna 2 for a microwave therapeutic apparatus 1, comprising: the bottom plate 21 of vertical setting, the middle part of bottom plate 21 is equipped with the mounting hole that is used for installing the waveguide pipe, and bottom plate 21 is connected with loudspeaker form annular plate 22, and the medial surface of annular plate 22 forms the microwave reflecting surface.
In practical use, a waveguide is mounted in the middle of the base plate 21, the waveguide corresponding to a feed line, for delivering microwaves to the feedhorns. Microwaves radiate outwards through a horn antenna, and the following advantages can be obtained by adopting the horn antenna: 1. the frequency bandwidth of the microwave is conveyed; when the microwave treatment is carried out, the frequency of the microwave transmission can be adjusted according to different parts of the body; the cells at different parts of the body are different, namely the sizes of the contained polar molecules are different, and the magnetic field effect formed by microwaves is also different; therefore, the output frequency bandwidth of the microwaves can be adjusted for different parts of the body and different age groups. 2. The power capacity is large, and the transmitting power of microwaves can be adjusted.
Further, the inner diameter of the annular plate 22r is the diameter of the inner caliber, C is the speed of light, f is the frequency, epsilon 1 is the dielectric constant of air, and n is an integer.
The entrance and exit of the horn-shaped microwave antenna 2 are also deduced from the above formula, but the values of n are different. The value of n is required to obtain an optimal value according to clinical test effects.
Preferably, the inner diameter of the annular plate 22 is R, the aperture width of the annular plate 22 is a, and the outer diameter of the annular plate 22 is R; r=200-203 mm; r=145-147 mm; a=120-123 mm.
With the horn antenna with the parameters, better radiation characteristics, sharp main lobes and higher gains can be obtained.
Further, the annular plate 22 is an aluminum alloy plate, and the annular plate 22 and the bottom plate 21 are fixed by ultrasonic welding.
For convenient manufacture, the annular plate 22 is made of aluminum alloy, so that the cost is reduced; by adopting ultrasonic welding, the welding can be more compact.
Referring to fig. 5, a microwave therapeutic apparatus 1 includes a housing, in which a high voltage power supply, a magnetron, a waveguide, and the above microwave antenna 2 are provided.
The utility model has the beneficial effects that: according to the utility model, the horn antenna is arranged, and corresponding parameters are optimized, so that the emitted microwaves have better uniformity, and the frequency bandwidth of the microwaves is larger and can be adjusted appropriately.
Secondly: the antenna radiator of the present utility model also has other advantages: and the magnetron is completely matched, and the following advantages are proved by testing:
1. because the impedance is matched with the waveguide tube and the magnetron, the efficiency of the magnetron is improved by about 20 percent;
2. as the size of the antenna is matched with the wavelength, the ratio of the diameter of the wave outlet to the length of the antenna is proved to be good in uniformity of the outgoing wave and good in human body feel through clinical tests;
3. the diameter of the wave outlet is calculated and tested for multiple times, so that the interference of the radiated wave outlet microwaves to the surrounding environment is minimized.
The foregoing is merely exemplary of the utility model, and those skilled in the art will recognize that the utility model is not limited thereto, except insofar as modifications may be made by those skilled in the art in light of the teachings of the utility model.
Claims (4)
1. A microwave antenna for a microwave therapeutic apparatus, characterized by: it comprises the following steps: the microwave oven comprises a vertically arranged bottom plate, wherein a mounting hole for mounting a waveguide tube is formed in the middle of the bottom plate, the bottom plate is connected with a horn-shaped annular plate, and the inner side surface of the annular plate forms a microwave reflecting surface; inner diameter of annular plater is the diameter of the inner caliber, C is the speed of light, f is the frequency, epsilon 1 is the dielectric constant of air, and n is an integer.
2. A microwave antenna for a microwave therapeutic apparatus according to claim 1, wherein: the inner caliber diameter of the annular plate is R, the caliber width of the annular plate is a, and the outer caliber diameter of the annular plate is R; r=200-203 mm; r=145-147 mm; a=120-123 mm.
3. A microwave antenna for a microwave therapeutic apparatus according to claim 1, wherein: the annular plate is an aluminum alloy plate, and the annular plate and the bottom plate are fixed through ultrasonic welding.
4. The utility model provides a microwave therapeutic instrument, includes the casing, is equipped with high voltage power supply, magnetron and waveguide tube in the casing, its characterized in that: a microwave antenna according to any one of claims 1 to 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320612421.4U CN219921204U (en) | 2023-03-27 | 2023-03-27 | Microwave antenna for microwave therapeutic apparatus and microwave therapeutic apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320612421.4U CN219921204U (en) | 2023-03-27 | 2023-03-27 | Microwave antenna for microwave therapeutic apparatus and microwave therapeutic apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219921204U true CN219921204U (en) | 2023-10-31 |
Family
ID=88487222
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320612421.4U Active CN219921204U (en) | 2023-03-27 | 2023-03-27 | Microwave antenna for microwave therapeutic apparatus and microwave therapeutic apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219921204U (en) |
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2023
- 2023-03-27 CN CN202320612421.4U patent/CN219921204U/en active Active
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