CN210723353U - Millimeter wave receiving antenna - Google Patents
Millimeter wave receiving antenna Download PDFInfo
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- CN210723353U CN210723353U CN201721543365.4U CN201721543365U CN210723353U CN 210723353 U CN210723353 U CN 210723353U CN 201721543365 U CN201721543365 U CN 201721543365U CN 210723353 U CN210723353 U CN 210723353U
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Abstract
The utility model discloses a millimeter wave receiving antenna, including the antenna body of pot cover form, its characterized in that: the receiving surface of the antenna body is provided with strip-shaped protruding parts, millimeter wave antenna patches are densely distributed on the surfaces of the strip-shaped protruding parts, and millimeter wave antenna patches are also arranged in gullies between adjacent strip-shaped protruding parts. The remarkable effects are as follows: because the dense unit paster that has on strip bulge surface, every unit paster is all equivalent to a plane of reflection, simultaneously based on the characteristic of millimeter wave, makes the utility model provides a great improvement antenna gain of millimeter wave receiving antenna.
Description
Technical Field
The utility model belongs to the technical field of communication and antenna, especially, relate to a millimeter wave receiving antenna.
Background
Reflector antennas have been increasingly used since the discovery of electromagnetic waves in hertz in 1888. The reflecting surface antenna has simple structure and light weight and has superior performance which can not be replaced by other antennas, so that the reflecting surface antenna becomes a medium current antenna in the communication field, is widely applied to the fields of radar, satellite communication, radio astronomy, tracking, remote sensing and the like, and the analysis and design method is continuously developed and improved.
At present, the reflecting surface in a rotational symmetry form is widely applied due to the convenient manufacture while ensuring the performance of the antenna, and the defects are as follows: part of the electromagnetic wave radiated by the reflecting surface enters the feed source, so that the impedance characteristic of the feed source is deteriorated, and in turn, a part of the electromagnetic wave can be shielded by more or less supporting structures of the feed source, so that the radiation efficiency of the antenna is reduced, and the gain of the reflecting surface antenna is influenced; in order to overcome the weakness of the reflecting surface antenna in a rotational symmetry mode, the offset reflecting surface antenna improves the structure of the reflecting surface, an elliptical part is cut from the rotational symmetry parabolic antenna by a cone, so that the offset parabolic antenna is obtained, the offset reflecting surface skillfully avoids the shielding of the feed source and a support rod thereof, thereby improving the side lobe level and the input standing wave characteristic of the feed source, but the asymmetry of the offset structure can cause the rise of the cross polarization level and the inclination of a wave beam, and the defect cannot be ignored particularly when the feed source needs to be out of focus to realize the scanning in a specified direction; in order to overcome the deficiency of the offset parabolic antenna, in practical use, the offset focal reflector antenna is generated by operating, namely, the feed source is offset to a certain distance, so that the beam can scan back and forth in a small angle range, the target is searched and tracked, and the deficiency lies in that: this defocusing causes the pattern of the reflecting surface to deteriorate.
With the development of the space electromagnetic spectrum and the electronic technology, the electrical performance requirements of communication and radar equipment on the satellite-borne scanning antenna are higher and higher, and the antenna is generally required to have higher gain, wider scanning angle range, lower side lobe level or lower cross polarization level. With the development of millimeter wave and terahertz technology, the method has more and more applications in the fields of high-power millimeter wave wireless energy transmission, millimeter wave short-range communication, millimeter wave imaging, millimeter wave plasma heating and the like, for example, a low elevation angle precision tracking radar and an imaging radar can be realized by utilizing the narrow beam and low sidelobe performance of a millimeter wave antenna; when the remote missile or spacecraft returns to the atmosphere, millimeter waves which can smoothly penetrate through plasmas are needed to realize communication and guidance; the millimeter wave radiometer with high resolution is suitable for remote sensing of meteorological parameters.
In summary, it is difficult to make the antenna gain as high as possible, and it is necessary to design a high-gain millimeter wave receiving antenna.
SUMMERY OF THE UTILITY MODEL
For solving the technical problem, the utility model provides a simple structure is novel, can improve antenna gain's millimeter wave receiving antenna greatly.
The technical scheme is as follows:
a millimeter wave receiving antenna comprises a pot cover-shaped antenna body, and mainly comprises: the receiving surface of the antenna body is provided with strip-shaped protruding parts, millimeter wave antenna patches are densely distributed on the surfaces of the strip-shaped protruding parts, and millimeter wave antenna patches are also arranged in gullies between adjacent strip-shaped protruding parts;
the receiving surface of the antenna body is covered with an insulating protective film, and the insulating protective film covers all the millimeter wave antenna patches.
The strip-shaped protruding part is of a spiral structure and extends from the center of the receiving surface to the outer edge of the receiving surface.
Structure more than adopting, because the dense unit paster that has in strip bulge surface, every unit paster all is equivalent to a plane of reflection, simultaneously based on the characteristic of millimeter wave, makes the utility model provides a great improvement antenna gain of millimeter wave receiving antenna. In limited space again, the utility model discloses a receiving area of antenna array has been enlarged to the structure, a unit paster is equivalent to an antenna, based on multi-user beam forming's principle, arrange several hundred antennas on the antenna body, to the respective wave beam of dozens of target receiver modulation, keep apart through space signal, transmit several tens of signals simultaneously on same frequency resource, this kind is to the abundant excavation of space resource, can effectively utilize the quality and scarce frequency band resource to improve network capacity tens times. According to the theorem of maximums and the theorem of central limits, the number of samples tends to be infinite, the mean value tends to be an expected value, while the mean distribution of independent random variables tends to be normal distribution, and the random variables tend to be stable, which is the beauty of "big". In a single-antenna to single-antenna transmission system, due to the complexity of the environment, electromagnetic waves may be opposite in phase at a receiving point after propagating through multiple paths in the air, and weaken each other, at this time, a channel may be subjected to strong fading, which affects the quality of a signal received by a user. When the number of the antennas is increased, hundreds of antennas relative to users have hundreds of channels, which are independent from each other, and the probability of falling into fading is greatly reduced, so that the communication system is simple and easy to process; the millimeter wave has rich bandwidth, but the attenuation is strong, and the beam forming of the large-scale antenna just complements the short plate, so that the gain of the antenna can be greatly improved by the millimeter wave large-scale antenna array.
Preferably, the method comprises the following steps: a drain hole is formed in the center of the receiving surface, the drain hole is connected with a drain pipe downwards, and a millimeter wave antenna patch is attached to the inner wall of the upper part of the drain pipe;
the inner wall of the upper part of the drain pipe is also covered with an insulating protective film.
Preferably, the method comprises the following steps: the existence of wash port is convenient for can get rid of after wasing pollutants such as dust on antenna body surface to can not cause the influence to the plane of reflection, simultaneously, because the strip bulge of spiral has introduced the wash port with most millimeter wave, increases receiving antenna near the wash port drill way, its receiving capacity has played the effect of making a result twice with half a effort.
The strip-shaped protruding part is a cooling water channel with a hollow structure, a water inlet of the cooling water channel is located at the outer edge of the receiving surface, and a water outlet of the cooling water channel is located at the center of the receiving surface.
Most millimeter wave antenna patches receive sunlight for a long time, the temperature of the working environment is very high, meanwhile, because the millimeter wave antenna patches are mostly in a 24-hour uninterrupted working state, the heat of the chip is high, the service life of the antenna can be shortened, and the service life of the antenna can be prolonged due to cooling water.
The cross section of each strip-shaped protruding part is of a semicircular or trapezoidal structure, each strip-shaped protruding part is a glass substrate, and the antenna body in each gully between every two adjacent strip-shaped protruding parts is a glass substrate.
And a copper foil is etched on the outer wall of the glass substrate, and the millimeter wave antenna patch is arranged on the copper foil.
The glass substrate reduces the etching cost, has higher hardness, is not easy to deform, ensures the stability of the copper foil etched on the surface of the glass substrate, and ensures the stable space among the millimeter wave antenna patches.
Preferably, the method comprises the following steps: the strip-shaped protruding portion is of a semicircular structure or a trapezoidal structure, the unit patches are etched on the outer surface of the strip-shaped protruding portion, the structure is simple, the unit patches are easy to install, the number of the unit patches can be greatly increased, and the unit patches cannot interfere with one another.
The utility model discloses beneficial effect:
the antenna gain is greatly improved, and the network capacity is greatly improved;
secondly, because a stack of antennas simultaneously exert force, the signal superposition gain formed by wave velocity forming enables each antenna to only transmit signals with small power, thereby avoiding the use of expensive large dynamic range power amplifiers and reducing the hardware cost;
thirdly, in large-scale antennas, the channel becomes good, and the process of resisting deep fading can be greatly simplified, so that the time delay can be greatly reduced.
Drawings
Fig. 1 is a top view of the present invention;
FIG. 2 is a schematic structural view of a strip-shaped protrusion;
fig. 3 is a view showing the assembly of the drain pipe.
Detailed Description
The present invention will be further explained with reference to the following examples and drawings.
A millimeter wave receiving antenna comprises a pot cover-shaped antenna body 1, wherein a receiving surface of the antenna body 1 is provided with strip-shaped protruding parts 2, millimeter wave antenna patches 3 are densely distributed on the surfaces of the strip-shaped protruding parts 2, and millimeter wave antenna patches 3 are also arranged in gullies between adjacent strip-shaped protruding parts 2;
the receiving surface of the antenna body 1 is covered with an insulating protective film which covers all the millimeter wave antenna patches 3.
The strip-shaped projection 2 is of a spiral structure, and the strip-shaped projection 2 extends from the center of the receiving surface to the outer edge of the receiving surface.
A drain hole 1a is formed in the center of the receiving surface, the drain hole 1a is connected with a drain pipe downwards, and a millimeter wave antenna patch 3 is attached to the inner wall of the upper part of the drain pipe;
the inner wall of the upper part of the drain pipe is also covered with an insulating protective film.
The strip-shaped protruding parts 2 are cooling water channels with hollow structures, water inlets of the cooling water channels are located at the outer edges of the receiving surfaces, and water outlets of the cooling water channels are located at the centers of the receiving surfaces.
The cross section of each strip-shaped protrusion part 2 is in a semicircular or trapezoidal structure, each strip-shaped protrusion part 2 is a glass substrate, and the antenna body 1 in each gully between every two adjacent strip-shaped protrusion parts 2 is a glass substrate.
The outer wall of the glass substrate is etched with a copper foil, and the millimeter wave antenna patch 3 is arranged on the copper foil.
It should be noted that the above-mentioned embodiments are only used for illustrating the technical solutions of the present invention and not for limiting the technical solutions, and although the applicant has described the present invention in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions made on the technical solutions of the present invention can not be included in the spirit and scope of the technical solutions of the present invention, and all the modifications or equivalent substitutions should be included in the scope of the claims of the present invention.
Claims (6)
1. The utility model provides a millimeter wave receiving antenna, includes antenna body (1) of pot cover form, its characterized in that: a strip-shaped protruding part (2) is arranged on a receiving surface of the antenna body (1), millimeter wave antenna patches (3) are densely distributed on the surface of the strip-shaped protruding part (2), and the millimeter wave antenna patches (3) are also arranged in gullies between adjacent strip-shaped protruding parts (2);
the receiving surface of the antenna body (1) is covered with an insulating protective film, and the insulating protective film covers all the millimeter wave antenna patches (3).
2. The millimeter wave receiving antenna of claim 1, wherein: the strip-shaped protruding part (2) is of a spiral structure, and the strip-shaped protruding part (2) extends from the center of the receiving surface to the outer edge of the receiving surface.
3. The millimeter wave receiving antenna of claim 2, wherein: a drain hole (1a) is formed in the center of the receiving surface, the drain hole (1a) is connected with a drain pipe downwards, and a millimeter wave antenna patch (3) is attached to the inner wall of the upper part of the drain pipe;
the inner wall of the upper part of the drain pipe is also covered with an insulating protective film.
4. The millimeter wave receiving antenna of claim 2, wherein: the strip-shaped protruding parts (2) are cooling water channels with hollow structures, water inlets of the cooling water channels are located at the outer edges of the receiving surfaces, and water outlets of the cooling water channels are located at the centers of the receiving surfaces.
5. The millimeter wave receiving antenna of claim 1, wherein: the cross section of each strip-shaped protruding part (2) is of a semicircular or trapezoidal structure, each strip-shaped protruding part (2) is a glass substrate, and the antenna body (1) in a gully between every two adjacent strip-shaped protruding parts (2) is a glass substrate.
6. The millimeter wave receiving antenna of claim 5, wherein: the outer wall of the glass substrate is etched with a copper foil, and the millimeter wave antenna patch (3) is arranged on the copper foil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721543365.4U CN210723353U (en) | 2017-11-17 | 2017-11-17 | Millimeter wave receiving antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721543365.4U CN210723353U (en) | 2017-11-17 | 2017-11-17 | Millimeter wave receiving antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210723353U true CN210723353U (en) | 2020-06-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721543365.4U Active CN210723353U (en) | 2017-11-17 | 2017-11-17 | Millimeter wave receiving antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210723353U (en) |
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2017
- 2017-11-17 CN CN201721543365.4U patent/CN210723353U/en active Active
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20201208 Address after: 402246, Jiangjin District, Chongqing, Fu New District Patentee after: CHONGQING VOCATIONAL College OF TRANSPORTATION Patentee after: ARMY ENGINEERING UNIVERSITY OF CHINA PLA Address before: 402247, No. 7, College Road, Fu Fu New District, Jiangjin District, Chongqing Patentee before: CHONGQING VOCATIONAL College OF TRANSPORTATION |
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| TR01 | Transfer of patent right |