W / Ka band radar for boundary layer cloud precipitation sounding

Abstract

The utility model provides a kind of W / Ka wave band radar for boundary layer cloud precipitation detection, can be freely adjusted the detection direction of antenna by rotating platform and pitching platform.Moreover, the caliber of transmitting antenna and receiving antenna is set to 0.5 meters to 0.8 meters, which can avoid the problem of insufficient low-level beam forming of W / Ka frequency modulation continuous wave radar. Thus, the accuracy of boundary layer cloud precipitation detection is improved. An antenna cover is further provided outside the transmitting surface of the transmitting antenna and the receiving surface of the receiving antenna, and a blowing fan is provided outside the antenna cover, which can avoid the adverse effects of dust and precipitation on measurement work.

Description

Technical Field

[0001] This utility model relates to the field of meteorological radar detection, and in particular to a W / Ka band radar for boundary layer cloud precipitation detection. Background Technology

[0002] Clouds and precipitation are key components of the global water and energy cycle, significantly impacting weather and climate change processes. Describing cloud distribution and evolution is among the most uncertain factors in weather and climate numerical model simulations. More refined observation of cloud and precipitation structure and evolution is crucial for research in cloud and precipitation physics, the mechanisms of thunderstorms and heavy rainfall, the optimal selection of weather modification operation areas, satellite quantitative remote sensing, and the development and validation of numerical weather prediction models.

[0003] Most current weather radars use large antennas to transmit and receive electromagnetic waves, with these antennas typically exceeding two meters in length. This antenna design has little impact on radar detection with longer wavelengths (X-band or C-band) and wider beamwidths. However, for millimeter-wave (W-band or Ka-band) radars, due to their shorter wavelengths and narrower beams, low-level beam overlap is difficult. This leads to larger measurement errors. Furthermore, when traditional radars operate in rain or snow, their radomes are easily blocked by rain and snow particles, which also contributes to inaccurate measurement results. Summary of the Invention

[0004] One object of the present invention is to overcome at least one deficiency in the prior art and to provide a W / Ka band radar for boundary layer cloud precipitation detection.

[0005] A further object of the present invention is to improve the measurement accuracy of W / Ka band radar by setting the antenna to a small aperture antenna of 0.5 m to 0.8 m.

[0006] Another further objective of the present invention is to clean the dust or precipitation on the surface of the radome by providing a blowing fan on one side of the outer surface of the radome, thereby avoiding the adverse effects of dust or precipitation on the measurement.

[0007] Specifically, the present invention provides a W / Ka band radar for boundary layer cloud precipitation detection, comprising: a multi-dimensional rotation servo drive system; an electromagnetic wave transceiver system disposed on the multi-dimensional rotation servo drive system and configured to be driven by the multi-dimensional rotation servo drive system to rotate in multiple directions, thereby adjusting the detection direction; and the electromagnetic wave transceiver system comprising: a transmitting antenna for transmitting W / Ka band electromagnetic waves; a receiving antenna for receiving the echo of W / Ka band electromagnetic waves; and the transmitting antenna and the receiving antenna are arranged side by side at intervals, and the antenna apertures are both set to 0.5 meters to 0.8 meters.

[0008] Optionally, the multi-dimensional rotation servo drive system includes: a base; a rotating platform mounted on the base; and a support frame mounted on the rotating platform for supporting the electromagnetic wave transceiver system and being driven by the rotating platform to rotate horizontally about an axis perpendicular to the base.

[0009] Optionally, the support frame includes: a support plate, which is laterally disposed on the rotating platform; and a vertical beam, which extends upward from both ends of the support plate; and the support plate and the vertical beam surround to form a receiving space for accommodating the electromagnetic wave transceiver system.

[0010] Optionally, the multi-dimensional rotation servo drive system also includes: a pitch platform, mounted on the vertical beam, and configured to drive the electromagnetic wave transceiver system to pitch and rotate about an axis parallel to the support frame.

[0011] Optionally, the pitch angle of the electromagnetic wave transceiver system during pitch motion is 0° to 90°.

[0012] Optionally, the W / Ka band radar also includes two radomes, respectively disposed outside the transmitting surface of the transmitting antenna and the receiving surface of the receiving antenna, for protecting the transmitting antenna and the receiving antenna.

[0013] Optionally, the W / Ka band radar also includes a blowing device, which includes: an airflow outlet located on one side of the transmitting surface of the transmitting antenna and the receiving surface of the receiving antenna for blowing the outer surface of the radome; and two blowing fans located on the side wall of the electromagnetic wave transceiver system, with the airflow from the two blowing fans flowing to the airflow outlets at the transmitting surface of the transmitting antenna and the receiving surface of the receiving antenna, respectively.

[0014] Optionally, the radomes of the transmitting and receiving antennas are tilted at a set angle to both sides from the midpoint between the transmitting and receiving antennas, with the set tilt angle being 15° to 25°.

[0015] Optionally, the W / Ka band radar also includes: a shelter unit, which is communicatively connected to the electromagnetic wave transceiver system, for controlling the electromagnetic wave transceiver system to transmit W / Ka band electromagnetic waves and receive echoes, and for generating measurement data based on the echoes.

[0016] Optionally, the container unit is also connected to a multi-dimensional rotation servo drive system for controlling the multi-dimensional rotation servo drive system to drive the electromagnetic wave transceiver system to rotate.

[0017] The W / Ka band radar for boundary layer cloud precipitation detection provided by this invention sets the aperture of both the transmitting and receiving antennas to 0.5 to 0.8 meters, which avoids the problem of insufficient low-level beamforming in W / Ka frequency-modulated continuous wave radar. This improves the accuracy of boundary layer cloud precipitation detection.

[0018] Furthermore, by installing radomes on the outside of the transmitting surface of the transmitting antenna and the receiving surface of the receiving antenna, and by installing blowers on the outside of the radomes, the adverse effects of dust and precipitation on the measurement work can be avoided.

[0019] The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments of the invention in conjunction with the accompanying drawings. Attached Figure Description

[0020] The following sections will describe some specific embodiments of the present invention in a detailed manner by way of example and not limitation, with reference to the accompanying drawings. The same reference numerals in the drawings denote the same or similar parts or components. Those skilled in the art should understand that these drawings are not necessarily drawn to scale. In the drawings:

[0021] Figure 1 This is a perspective view of a W / Ka band radar component according to an embodiment of the present invention;

[0022] Figure 2 This is a schematic diagram of the radar's large and small antenna beams.

[0023] Figure 3 This is the electrical schematic diagram of a W / Ka band radar. Detailed Implementation

[0024] This invention provides a W / Ka band radar for detecting boundary layer cloud precipitation. Figure 1 This is a perspective view of some components of a W / Ka band radar according to an embodiment of the present invention. The W / Ka band radar of this embodiment generally includes a multi-dimensional rotation servo drive system 100 and an electromagnetic transceiver system 200. The electromagnetic transceiver system 200 is disposed within the multi-dimensional rotation servo drive system 100, which can drive the electromagnetic transceiver system 200 to rotate in multiple directions, thereby adjusting the detection direction and allowing the electromagnetic transceiver system 200 to rotate to the direction to be detected.

[0025] Furthermore, the electromagnetic wave transceiver system 200 includes a transmitting antenna 210 and a receiving antenna 220. The transmitting antenna 210 transmits W / Ka band electromagnetic waves in the direction to be detected. The receiving antenna 220 receives the scattered echo signal generated when the W / Ka band signal encounters the target being detected. The transmitting antenna 210 and the receiving antenna 220 can be arranged side-by-side with spacing, and both antennas are small antennas with an aperture of 0.5 meters to 0.8 meters. Figure 2This is a schematic diagram of the beamforming of a large and small radar antenna. Generally, large-aperture radar antennas are set to be on the order of two meters or more. For millimeter-wave (W or Ka band) radar, due to the short wavelength and narrow beam, low-level beam overlap is difficult. Therefore, when conducting boundary layer detection, W / Ka frequency-modulated continuous wave radar using large antennas suffers from insufficient low-level beamforming. In contrast, under the same conditions, small-aperture radar has a wider beam, the beamforming height is closer to the ground, and the beams overlap more easily. Therefore, using small-aperture antenna technology can improve the detection accuracy of boundary layer clouds and precipitation.

[0026] Furthermore, the electromagnetic transceiver system 200 can employ dual-band coplanar antenna technology, utilizing different radiating elements, resonant structures, or loading components to enable the antenna to resonate on two different frequency bands, thereby achieving effective radiation and reception of signals in both bands. For example, by loading slots of a specific shape onto the antenna's radiating patch or using radiating elements of different sizes, the antenna can have different electrical lengths in the low-frequency and high-frequency bands, thus generating resonance in both bands and achieving dual-band operation. Integrating the antenna functions of two frequency bands into a single plane significantly saves space.

[0027] In some embodiments, the multidimensional rotation servo drive system 100 generally includes a base 110, a rotating platform 120, and a support frame 130. The base 110 supports the multidimensional rotation servo drive system 100 and can generally be configured as a cross-shaped base 110, a circular base 110, or a triangular base 110, with different shapes or materials selected according to actual usage requirements. The rotating platform 120 is mounted on the base 110 and drives the electromagnetic wave transceiver system 200 to rotate. The rotation of the electromagnetic wave transceiver system by the rotating platform 120 can be achieved by a motor installed inside it. The motor inside the rotating platform 120 can be a stepper motor or a servo motor, and the motor type can be freely selected according to actual usage during measurement.

[0028] The support frame 130 is mounted on the rotating platform 120 and supports the electromagnetic transceiver system 200. During W / Ka band radar operation, the rotating platform 120 drives the support frame 130 to rotate the electromagnetic transceiver system 200 about an axis perpendicular to the base 110. By rotating the electromagnetic transceiver system 200, 360-degree omnidirectional scanning and detection of the surrounding space can be achieved. W / Ka band radar is typically used for precise target detection; the rotating platform 120 enables the radar to search for targets in different directions, avoiding detection blind spots and improving the accuracy of the radar system.

[0029] In some embodiments, the support frame 130 generally includes a support plate 131 and a vertical beam 132. The support plate 131 is horizontally positioned on the rotating platform 120, providing a stable base 110 and firmly connecting the support frame 130 to the rotating platform 120, ensuring the stability of the entire structure during rotation. The vertical beam 132 extends upwards from both sides of the support plate 131, forming a "U"-shaped structure together with the support plate 131. This structure has high strength and rigidity, capable of withstanding the weight of the electromagnetic wave transceiver system 200 and various forces generated during operation, such as centrifugal force and wind force, ensuring the radar system operates normally under various conditions. Furthermore, this structural design facilitates the installation and commissioning of the electromagnetic wave transceiver system 200. The various components can be assembled on the ground first, and then the entire system can be placed into the "U"-shaped receiving space and fixed using the pre-set mounting holes and fixing devices on the support plate 131 and vertical beam 132, making the operation convenient and quick. During maintenance, the "U"-shaped structure also provides good openness, allowing technicians to easily inspect, repair, and replace parts of the transceiver system, reducing maintenance costs and difficulty.

[0030] In some embodiments, the vertical rotation servo drive system further includes a pitch platform 140, which is mounted on the vertical beam 132 and configured to drive the electromagnetic transceiver system 200 to rotate in a direction parallel to the support frame 130. Through this pitch rotation in conjunction with the rotation of the aforementioned rotating platform 120, the electromagnetic transceiver system 200 can flexibly adjust its detection angle according to actual needs. This allows it to detect targets not only in the horizontal direction but also at low altitudes, high altitudes, and at different elevation angles, expanding the radar's vertical detection range. This facilitates more comprehensive monitoring of targets at different altitudes and improves the radar system's adaptability to complex terrain and diverse targets.

[0031] In some embodiments, the pitch angle of the electromagnetic transceiver system 200 is from 0° to 90°. The rotating platform 120 is responsible for 360° horizontal scanning, while the pitch angle of 0° to 90° covers a wide range of angles from the horizontal to the vertical. This means that the W / Ka band radar can detect targets in all directions and at all altitudes. Whether the target is low-altitude, high-altitude, or located in different directions around the radar, it can be effectively monitored, truly achieving all-around detection without blind spots and greatly improving the monitoring capability of the radar system.

[0032] In some embodiments, the W / Ka band radar further includes two radomes 300, respectively disposed outside the transmitting surface of the transmitting antenna 210 and the receiving surface of the receiving antenna 220, for protecting the transmitting antenna 210 and the receiving antenna 220. The radomes 300 provide physical protection for the transmitting antenna 210 and the receiving antenna 220, shielding them from external environmental factors such as rain, sandstorms, snow, ultraviolet radiation, and damage from birds and insects, thereby extending the antenna's lifespan and ensuring stable performance. Furthermore, the radomes 300 are typically made of materials with specific electromagnetic properties, such as low-loss, high-transmittance materials. They can protect the antenna while minimizing the impact on electromagnetic wave propagation, ensuring that the electromagnetic waves emitted by the transmitting antenna 210 can be efficiently transmitted into space through the radome 300, and that the receiving antenna 220 can effectively receive electromagnetic wave signals from space, reducing electromagnetic wave reflection, scattering, and absorption, and improving the detection performance and accuracy of the radar system. Because the radomes 300 protect the antenna from external environmental influences, the possibility of antenna failure is reduced, thereby improving the reliability and stability of the entire radar system. In harsh weather conditions or complex electromagnetic environments, the radome 300 ensures the normal operation of the antenna, reduces the risk of radar system failure due to antenna malfunction, and guarantees the continuous operation of the radar system under various operating conditions.

[0033] In some embodiments, the W / Ka band radar further includes a blowing device 400, which generally includes an airflow outlet 410 and two blowing fans 420. The airflow outlet 410 is located on one side of the transmitting surface of the transmitting antenna 210 and the receiving surface of the receiving antenna 220. W / Ka band radar operates at higher frequencies, requiring a high degree of cleanliness on the outer surface of the radome 300. Dust and precipitation can alter the electromagnetic properties of the radome 300 surface, causing electromagnetic wave reflection, scattering, and attenuation, affecting measurement accuracy. The blowing device 400 blows airflow through the airflow outlet 410 to continuously clean the outer surface of the radome 300, preventing dust accumulation and precipitation adhesion, ensuring accurate transmission and reception of electromagnetic waves by the radar system, thereby guaranteeing measurement accuracy. The two blowing fans 420 are located on the sidewall of the electromagnetic wave transceiver system 200, and the airflow from the two blowing fans flows to the airflow outlet 410 at the transmitting surface of the transmitting antenna 210 and the receiving surface of the receiving antenna 220, respectively.

[0034] Furthermore, a heating device can be installed at the airflow outlet 410 to form a hot airflow in conjunction with the airflow blown by the blower 420, which can more quickly remove precipitation or frost caused by low temperatures from the surface of the radome 300. Alternatively, a heating film can be attached to the surface of the radome 300. During W / Ka band radar operation, the heating film operates, and in conjunction with the airflow blown by the blower 420, it can also quickly remove precipitation or frost caused by low temperatures from the surface of the radome 300.

[0035] In some embodiments, the radome 300 of the transmitting antenna 210 and the receiving antenna 220 are tilted at a predetermined angle to both sides from the midpoint between the transmitting antenna 210 and the receiving antenna 220, with the tilt angle ranging from 15° to 25°. This is because water accumulation can alter the electromagnetic properties of the radome 300 surface, interfering with the transmission and reception of electromagnetic waves and thus affecting the radar's measurement accuracy. Allowing the water to flow away quickly effectively avoids this interference, ensuring the radar system accurately transmits and receives electromagnetic waves and maintains high-precision measurement performance. The tilt angle is set to 15° to 25° because this range ensures that precipitation flows quickly and smoothly from the radome 300 surface under gravity. If the angle is too small (less than 15°), the drainage speed may be slow, easily leading to water accumulation; if the angle is too large (more than 25°), it may increase the reflection and scattering of electromagnetic waves, thereby reducing the radar's detection accuracy and operating range.

[0036] To facilitate understanding of the present invention by those skilled in the art, the technical solution of the present invention can be further explained based on the electrical schematic diagram. Figure 3 This is an electrical schematic diagram of a W / Ka band radar. In some embodiments, the W / Ka band radar also includes a shelter 500, which is communicatively connected to an electromagnetic transceiver system 200. The shelter 500 controls the electromagnetic transceiver system 200 to transmit W / Ka band electromagnetic waves and receive echoes, and generates measurement data based on the echoes. The shelter 500 provides centralized control of the electromagnetic transceiver system 200, allowing operators to easily set and adjust various parameters and operating modes of the radar system. For example, operators can easily set parameters such as the frequency, power, and pulse width of the transmitted electromagnetic waves, as well as select the method and processing algorithm for receiving echoes, all within the shelter. This centralized control method improves the system's operational convenience and management efficiency, reducing the complexity and error probability of manual operation.

[0037] Furthermore, the shelter unit 500 typically possesses excellent environmental adaptability and protective performance, providing a stable operating environment for the internal control and processing equipment. It can withstand harsh external environmental factors such as high and low temperatures, humidity, and dust, protecting the normal operation of the equipment. Simultaneously, the shelter unit can also provide a certain degree of electromagnetic shielding and anti-interference capability, reducing the impact of external electromagnetic interference on the system and ensuring the stable operation of the electromagnetic wave transceiver system 200.

[0038] In some embodiments, the shelter device 500 is also communicatively connected to the multi-dimensional rotation servo drive system 100, used to control the multi-dimensional rotation servo drive system 100 to drive the electromagnetic wave transceiver system 200 to rotate. By controlling the rotation of the electromagnetic wave transceiver system 200, scanning and detection of space in different directions can be achieved. The detection angle can be flexibly adjusted to cover a larger airspace or area, effectively avoiding detection blind spots and improving the radar system's target search and monitoring capabilities. Moreover, it can also achieve coordinated operation of the multi-dimensional rotation servo drive system 100 and the electromagnetic wave transceiver system 200. The shelter device 500 can precisely coordinate the working states of the two according to actual detection needs. For example, when tracking a specific target, the shelter device 500 controls the electromagnetic wave transceiver system 200 to adjust the transmission and reception parameters to better acquire target information, while simultaneously controlling the multi-dimensional rotation servo drive system 100 to precisely align the antenna with the target, ensuring that the transmission and reception directions of the electromagnetic waves are precisely matched with the target position, thereby improving the detection and tracking accuracy of the entire system.

[0039] This embodiment of the W / Ka band radar, based on the velocity characteristics of raindrop and cloud droplet particles, employs a multi-mode combination technique to achieve simultaneous measurement of cloud and rain particles. Furthermore, during operation, the W / Ka band radar utilizes frequency-modulated continuous wave (FM-CVT) technology, performing two FFT transformations on the raw radar IQ signal before processing the power spectrum data. FM-CVT technology itself possesses excellent range resolution characteristics; combined with the two FFT transformations, it can more precisely distinguish targets at different distances. When monitoring boundary layer cloud precipitation, it can differentiate the particle distribution within cloud layers at different altitudes, accurately identifying details such as cloud thickness and layering.

[0040] Furthermore, a measurement process using W / Ka band radar can include: first, measuring using a long repetition period mode with a maximum measurable distance of 15 km; then, measuring using a short repetition period mode with a maximum measurable distance of 6 km (the melting layer in tropical regions is generally 5 km, and this setting meets the requirement for unambiguous raindrop velocity measurement). Raindrop signal identification is performed in the radar power spectrum domain, and the power spectrum folding portion is de-folded based on the signal identification results. This accurately distinguishes raindrop particles from signals of other particles, avoiding measurement errors caused by signal confusion. The data measurement method is selected according to the measurement distance. That is, the long repetition period mode is used above 6 km, and the short repetition period mode is used below 6 km. This method can make reasonable use of radar resources. At long distances, high temporal resolution is not required; using the long repetition period mode can reduce unnecessary pulse emissions and lower system power consumption while ensuring the measurement distance. At short distances, the short repetition period mode can fully utilize its high temporal resolution advantage to better acquire information about nearby cloud and rain particles without data redundancy or loss of detailed information due to excessively long repetition periods.

[0041] Furthermore, radar resolution also affects detection range and unambiguous velocity in the W / Ka band. The relationship between resolution, maximum detection range, and unambiguous velocity in the W / Ka band is shown in Table 1.

[0042] Table 1

[0043] resolution Maximum detection range Ka-band unambiguous speed W-band unblurred speed 5m 3km 18m / s 7m / s 10m 6km 16m / s 6m / s 30m 15km 10m / s 4m / s

[0044] Table 1 shows a correlation between resolution, maximum detection range, and unambiguous velocity across different bands. In practical applications, these parameters can be used to select the appropriate radar operating mode based on different detection requirements (such as the need for precise target differentiation or detection of distant targets). This approach satisfies the data accuracy requirements of W / Ka band radars while improving measurement efficiency and resource utilization.

[0045] Therefore, those skilled in the art should recognize that although numerous exemplary embodiments of the present invention have been shown and described in detail herein, many other variations or modifications conforming to the principles of the present invention can be directly determined or derived from the disclosure of the present invention without departing from the spirit and scope of the invention. Thus, the scope of the present invention should be understood and construed as covering all such other variations or modifications.

[0046] Unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," "fixing," and "setting," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art should be able to understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0047] Unless otherwise specified, all terms used in the description of this disclosure (including technical and scientific terms) have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0048] In the description of this disclosure, references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0049] Those skilled in the art should understand that the embodiments described below are merely some embodiments of the present invention, and not all embodiments of the present invention. These embodiments are intended to explain the technical principles of the present invention and are not intended to limit the scope of protection of the present invention. Based on the embodiments provided by the present invention, all other embodiments obtained by those skilled in the art without creative effort should still fall within the scope of protection of the present invention.

Claims

1. A W / Ka band radar for boundary layer cloud precipitation detection, characterized in that... include: Multidimensional rotation servo drive system; An electromagnetic wave transceiver system is mounted on the multi-dimensional rotation servo drive system and configured to rotate in multiple directions driven by the multi-dimensional rotation servo drive system, thereby adjusting the detection direction; and the electromagnetic wave transceiver system includes: Transmitting antenna, used to transmit W / Ka band electromagnetic waves; A receiving antenna is used to receive the echo of the W / Ka band electromagnetic wave; and the transmitting antenna and the receiving antenna are arranged side by side at intervals, and the antenna aperture is set to 0.5 meters to 0.8 meters.

2. The W / Ka band radar according to claim 1, characterized in that... The multi-dimensional rotation servo drive system includes: Base; A rotating platform is mounted on the base. A support frame is mounted on the rotating platform to support the electromagnetic wave transceiver system and is driven by the rotating platform to rotate horizontally about an axis perpendicular to the base.

3. The W / Ka band radar according to claim 2, characterized in that... The support frame includes: A support plate is horizontally positioned on the rotating platform; A vertical beam, formed by extending upwards from both ends of the support plate laterally; and... The support plate and the vertical beam surround to form a housing space for accommodating the electromagnetic wave transceiver system.

4. The W / Ka band radar according to claim 3, characterized in that... The multi-dimensional rotation servo drive system also includes: A pitch platform is mounted on the vertical beam and configured to drive the electromagnetic wave transceiver system to pitch and rotate about an axis parallel to the support frame.

5. The W / Ka band radar according to claim 4, characterized in that, The pitch angle of the electromagnetic wave transceiver system is from 0° to 90°.

6. The W / Ka band radar according to claim 1, characterized in that... Also includes: Two antenna covers are respectively disposed outside the transmitting surface of the transmitting antenna and the receiving surface of the receiving antenna to protect the transmitting antenna and the receiving antenna.

7. The W / Ka band radar according to claim 6, characterized in that... It also includes a blowing device, which comprises: An airflow outlet is located on one side of the transmitting surface of the transmitting antenna and the receiving surface of the receiving antenna, and is used to blow air onto the outer surface of the antenna cover. Two blowers are installed on the side wall of the electromagnetic wave transceiver system. The airflow blown by the two blowers flows to the airflow outlets at the transmitting surface of the transmitting antenna and the receiving surface of the receiving antenna, respectively.

8. The W / Ka band radar according to claim 6, characterized in that, The radomes of the transmitting antenna and the receiving antenna are tilted at a predetermined angle to both sides from the midpoint between the transmitting antenna and the receiving antenna, and the predetermined tilt angle is 15° to 25°.

9. The W / Ka band radar according to claim 1, characterized in that... Also includes: The shelter device is communicatively connected to the electromagnetic wave transceiver system, and is used to control the electromagnetic wave transceiver system to send the W / Ka band electromagnetic waves and receive the echoes, and to generate measurement data based on the echoes.

10. The W / Ka band radar according to claim 9, characterized in that... The container device is also communicatively connected to the multidimensional rotation servo drive system, and is used to control the multidimensional rotation servo drive system to drive the electromagnetic wave transceiver system to rotate.

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