Ultra-wideband dual-polarization high-gain parabolic antenna

Abstract

The invention relates to the technical field of wireless communication, in particular to an ultra-wideband dual-polarization high-gain parabolic antenna which is suitable for 5G / 6G communication, satellite communication and military electronic countermeasure scenes, the working frequency band of the ultra-wideband dual-polarization high-gain parabolic antenna covers 617 MHz to 6 GHz, the ultra-wideband dual-polarization high-gain parabolic antenna supports dual polarization (+ / -45 degrees or vertical / horizontal) and high-gain characteristics, and the ultra-wideband dual-polarization high-gain parabolic antenna can be compatible with multi-frequency-band communication requirements.

Description

Technical Field

[0001] The present invention relates to the technical field of communication antennas, and more particularly to an ultra-wideband dual-polarization high-gain parabolic antenna. Background Art

[0002] Currently, parabolic antennas used in the market are limited to narrow frequency bands and single channels. With the rapid development of technologies such as 5G / 6G and satellite communications, traditional narrowband antennas are unable to meet the requirements of multi-band compatibility. For example, a broadband dual-polarized parabolic antenna with patent publication number CN221126259U is limited by its narrow-band design (usually <3GHz) and single polarization mode (such as single vertical or horizontal polarization). It is difficult to meet the ultra-wideband, multi-polarization, and high-capacity requirements of 5G / 6G, satellite communications, and electronic countermeasures. If multi-band communication is to be achieved, structural improvements are required. Multi-band compatibility requires a combination of multiple antennas, which increases system complexity and cost, making it difficult to achieve.

[0003] Therefore, based on the problems existing in the above-mentioned existing technologies, an ultra-wideband dual-polarization high-gain parabolic antenna is designed that takes into account both low-frequency (such as 617MHz) and high-frequency (6GHz) performance. In addition, dual polarization (±45° or vertical / horizontal) can transmit two independent signals in the same frequency band, improve channel capacity, adapt to MIMO (multiple-input multiple-output) technology, and suppress co-channel interference through polarization isolation. It is suitable for complex electromagnetic environments. Summary of the Invention

[0004] In view of the shortcomings of the prior art, the object of the present invention is to provide an ultra-wideband dual-polarization high-gain parabolic antenna to solve the problems existing in the above-mentioned background technology.

[0005] The above technical objectives of the present invention are achieved through the following technical solutions: an ultra-wideband dual-polarization high-gain parabolic antenna, comprising: a mounting assembly, a feed assembly, a reflection arc plate and a feed line; the reflection arc plate is detachably connected to the mounting assembly; the feed assembly comprises a main rod, a feed front cover and a feed rear cover; one end of the main rod passes through the reflection arc plate and is detachably connected to the mounting assembly; the feed rear cover is detachably connected to the other end of the main rod; the feed front cover is detachably connected to the feed rear cover; the feed front cover cooperates with the feed rear cover to form an accommodating cavity; a support rod, a radiating vibrator and an excitation vibrator are arranged in the accommodating cavity; the support rod is detachably connected to the feed rear cover; the excitation vibrator is detachably connected to one end of the support rod close to the feed front cover; the radiating vibrator is detachably connected to one end of the support rod close to the feed rear cover; the feed line is electrically connected to the radiating vibrator and the excitation vibrator respectively.

[0006] Optionally, the radiating vibrator includes: a first conical patch vibrator and a second conical patch vibrator; the first conical patch vibrator and the second conical patch vibrator are respectively detachably connected to the support rod; the first conical patch vibrator and the second conical patch vibrator are orthogonally arranged; the first conical patch vibrator and the second conical patch vibrator are both provided with slots, so that the first conical patch vibrator and the second conical patch vibrator are orthogonally coupled and fixed to form cross polarization.

[0007] Optionally, both the first conical patch vibrator and the second conical patch vibrator are provided with slots to increase inductance.

[0008] Optionally, the excitation vibrator is a metal sheet with a vibrator diameter of 0.5λ to 0.8λ.

[0009] Optionally, the diameter of the slot is 0.25λ.

[0010] Optionally, the mounting assembly includes: a mounting plate, a holding plate, and at least one fixing bolt for fixing the relative positions of the mounting plate and the holding plate; one end of the mounting plate is detachably connected to the reflective arc plate and the feed assembly, respectively; the other end of the mounting plate is detachably connected to one end of the fixing bolt; the other end of the fixing bolt is detachably connected to the holding plate; the mounting plate and the holding plate cooperate to form a clamping cavity for clamping the column.

[0011] Optionally, it also includes an adjusting bolt for adjusting the setting angle of the holding plate; an arc-shaped adjustment groove is provided on the mounting plate; one end of the adjusting bolt is detachably connected to the holding plate; the other end of the adjusting bolt is placed in the arc-shaped adjustment groove and can abut against the inner wall of the arc-shaped adjustment groove.

[0012] Optionally, the main rod is made of UPVC material to increase wave transmittance.

[0013] In summary, the present invention has the following beneficial effects:

[0014] 1. The feed component on the antenna achieves impedance matching of 617MHZ-6GHZ through a stepped feeding structure, thereby achieving communication methods matching different frequency bands; at the same time, the orthogonal coupling structure and symmetrical feeding network are used in the feed component to reduce cross-polarization and reduce the obstruction of the parabolic aperture by the cross-section of the radiating oscillator on the radio wave radiation path. The increase in the aperture surface narrows the main lobe of the antenna pattern, reduces the side lobe, and increases the gain.

[0015] 2. The mounting assembly has a variety of installation methods to adapt to different environments, suitable for outdoor installation, reducing wind resistance; and the focal length of the feed assembly can be adjusted to suit the use of paraboloids of different diameters. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the installation of the main structure of the present invention;

[0017] Figure 2 is a schematic diagram of the specific structure of the feed assembly of the present invention;

[0018] Figure 3 It is a schematic diagram of the specific structure of the installation component of the present invention.

[0019] In the figure: 1. Feed assembly; 11. Main pole; 12. Feed front cover; 13. Feed rear cover; 14. Accommodating cavity; 15. Support pole; 16. Radiating oscillator; 161. First conical patch oscillator; 162. Second conical patch oscillator; 163. Slot; 17. Excitation oscillator; 2. Reflection arc plate; 3. Mounting assembly; 31. Mounting plate; 32. Holding plate; 33. Fixing bolt; 34. Adjusting bolt; 35. Arc-shaped adjustment slot; 4. Holding pole; 5. Feeder. DETAILED DESCRIPTION

[0020] To make the objectives, features, and advantages of the present invention more readily apparent, the following detailed description of the present invention is provided with reference to the accompanying drawings. The accompanying drawings illustrate several embodiments of the present invention. However, the present invention may be implemented in many different forms and is not limited to the embodiments described herein.

[0021] In the present invention, unless otherwise expressly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be a communication between the two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances. The terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of such features.

[0022] In the present invention, unless otherwise expressly specified and limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature includes the first feature being directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature. The terms "vertical," "horizontal," "left," "right," "above," "below," and similar expressions are for illustrative purposes only and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as limiting the present invention.

[0023] The present invention is described in detail below with reference to the accompanying drawings and embodiments.

[0024] The present invention provides an ultra-wideband dual-polarization high-gain parabolic antenna, such as Figure 1 As shown, it includes: a mounting assembly 3, a feed assembly 1, a reflective arc plate 2 and a feed line 5; the reflective arc plate 2 is detachably connected to the mounting assembly 3; the feed assembly 1 includes a main rod 11, a feed front cover 12 and a feed rear cover 13; one end of the main rod 11 passes through the reflective arc plate 2 and is detachably connected to the mounting assembly 3; the feed rear cover 13 is detachably connected to the other end of the main rod 11; the feed front cover 12 is detachably connected to the feed rear cover 13 ... The feed source rear cover 13 cooperates to form a accommodating cavity 14; a support rod 15, a radiating vibrator 16 and an excitation vibrator 17 are provided in the accommodating cavity 14; the support rod 15 is detachably connected to the feed source rear cover 13; the excitation vibrator 17 is detachably connected to an end of the support rod 15 close to the feed source front cover 12; the radiating vibrator 16 is detachably connected to an end of the support rod 15 close to the feed source rear cover 13; the feed line 5 is electrically connected to the radiating vibrator 16 and the excitation vibrator 17 respectively.

[0025] Specifically, such as Figure 1 As shown, the antenna is installed as a whole in a suitable installation position through the installation component 3, the feed component 1 and the reflector arc plate 2 are installed and connected to the installation component 3, and the feed line 5 is electrically connected to the feed component 1 to achieve basic installation; by debugging the relative position of the feed component 1 and the reflector arc plate 2, the focal length of the entire antenna is debugged to adapt it to the antenna working environment under different application scenarios.

[0026] Specifically, the feed front cover 12 is made of ABS material with anti-aging and anti-ultraviolet radiation to enhance the wave transmittance; the feed rear cover 13 is made of ASB material and is used to cooperate with the feed front cover 12 to fix the vibrator installed in the accommodating cavity 14.

[0027] Furthermore, the radiating vibrator 16 includes: a first conical patch vibrator 161 and a second conical patch vibrator 162; the first conical patch vibrator 161 and the second conical patch vibrator 162 are respectively detachably connected to the support rod 15; the first conical patch vibrator 161 and the second conical patch vibrator 162 are orthogonally arranged; the first conical patch vibrator 161 and the second conical patch vibrator 162 are both provided with slots, so that the first conical patch vibrator 161 and the second conical patch vibrator 162 are orthogonally coupled and fixed to form cross polarization.

[0028] Specifically, such as Figure 2 As shown, the size of the first conical patch element 161 and the second conical patch element 162 is 1 / 4λ, and the first conical patch element 161 and the second conical patch element 162 are orthogonally coupled and fixed to form the structure of the radiating element 16, forming cross-polarization, reducing the cross-section of the radiating element 16 on the path of radio wave radiation, and blocking the parabolic aperture. The increase in the aperture surface makes the main lobe of the antenna radiation pattern narrower, the side lobe is reduced, and the gain is increased.

[0029] Furthermore, a slot groove 163 is formed on each of the first conical patch vibrator 161 and the second conical patch vibrator 162 to increase inductance.

[0030] Specifically, such as Figure 2 As shown, a 0.25λ slot 163 is opened on the left and right sides of the first conical patch oscillator 161 and the second conical patch oscillator 162, which can increase the inductance of the radiation oscillator 16 and improve the gain.

[0031] Furthermore, the excitation vibrator 17 is made of a metal sheet with a vibrator diameter of 0.5λ to 0.8λ.

[0032] Specifically, such as Figure 2 As shown, the excitation vibrator 17 is a metal sheet with a vibrator diameter of about 0.5λ to 0.8λ. Moving the metal sheet along the Z axis can adjust the high-frequency excitation of the radiation unit, reduce the influence of the waveguide on the feed pattern, reduce the E-surface cross-section of the waveguide, and improve the gain.

[0033] Furthermore, the diameter of the slot 163 is 0.25λ.

[0034] Further, the mounting assembly 3 comprises a mounting plate 31, a clamping plate 32 and at least one fixing bolt 33 for fixing the relative positions of the mounting plate 31 and the clamping plate 32; one end of the mounting plate 31 is detachably connected with the reflector arc plate 2 and the feed assembly 1 respectively; the other end of the mounting plate 31 is detachably connected with one end of the fixing bolt 33; the other end of the fixing bolt 33 is detachably connected with the clamping plate 32; the mounting plate 31 and the clamping plate 32 cooperatively form a clamping cavity for clamping the column.

[0035] Specifically, as shown in the figure, the mounting plate 31 and the clamping plate 32 are mounted on the clamping rod 4 in cooperation, the positions of the mounting plate 31 and the clamping plate 32 are adjusted by the fixing bolt 33, and then the clamping mounting effect is realized. Figure 1

[0036] Further, the mounting assembly 3 comprises a mounting plate 31, a clamping plate 32 and at least one fixing bolt 33 for fixing the relative positions of the mounting plate 31 and the clamping plate 32; one end of the mounting plate 31 is detachably connected with the reflector arc plate 2 and the feed assembly 1 respectively; the other end of the mounting plate 31 is detachably connected with one end of the fixing bolt 33; the other end of the fixing bolt 33 is detachably connected with the clamping plate 32; the mounting plate 31 and the clamping plate 32 cooperatively form a clamping cavity for clamping the column.

[0037] Specifically, as shown in the figure, the mounting plate 31 and the clamping plate 32 are mounted on the clamping rod 4 in cooperation, the positions of the mounting plate 31 and the clamping plate 32 are adjusted by the fixing bolt 33, and then the clamping mounting effect is realized. Figure 3

[0038] Further, the main rod 11 is made of UPVC material to increase the wave permeability.

[0039] The ultra-wideband dual-polarized high-gain parabolic antenna of the application realizes the impedance matching of 617MHz-6GHz through the stepped feed structure of the feed assembly 1 on the antenna, and then realizes the matching of different frequency bands of communication modes; meanwhile, the orthogonal coupling structure and the symmetric feed network are adopted in the feed assembly 1 to reduce the cross polarization and the shielding of the cross section of the radiation oscillator 16 on the parabolic aperture in the electric wave radiation path, the increase of the aperture surface makes the main lobe of the antenna pattern narrow, the side lobe is reduced, and the gain is increased.

[0040] The above only describes the preferred embodiments of the application, and the protection scope of the application is not limited to the above-mentioned embodiments, and any technical scheme falling within the idea of the application belongs to the protection scope of the application. It should be noted that, for ordinary skilled in the art, some improvements and decorations without departing from the principles of the application are also considered as the protection scope of the application.​​

Claims

1. An ultra-wideband dual-polarization high-gain parabolic antenna, characterized in that: include: Installation assembly, feed assembly, reflective arc plate and feeder; the reflective arc plate is detachably connected to the installation assembly; The feed assembly includes a main rod, a feed front cover and a feed rear cover; one end of the main rod passes through the reflective arc plate and is detachably connected to the mounting assembly; the feed rear cover is detachably connected to the other end of the main rod; the feed front cover is detachably connected to the feed rear cover; the feed front cover and the feed rear cover cooperate to form a receiving cavity; A support rod, a radiation vibrator and an excitation vibrator are provided in the accommodating cavity; the support rod is detachably connected to the feed source rear cover; the excitation vibrator is detachably connected to an end of the support rod close to the feed source front cover; the radiation vibrator is detachably connected to an end of the support rod close to the feed source rear cover; The feed lines are electrically connected to the radiation vibrator and the excitation vibrator respectively.

2. The ultra-wideband dual-polarization high-gain parabolic antenna according to claim 1, characterized in that: The radiating oscillator includes: a first conical patch oscillator and a second conical patch oscillator; The first conical patch vibrator and the second conical patch vibrator are respectively detachably connected to the support rod; the first conical patch vibrator and the second conical patch vibrator are orthogonally arranged; The first conical patch vibrator and the second conical patch vibrator are both provided with slots, so that the first conical patch vibrator and the second conical patch vibrator are orthogonally coupled and fixed to form cross polarization.

3. The ultra-wideband dual-polarization high-gain parabolic antenna according to claim 2, characterized in that: The first conical patch vibrator and the second conical patch vibrator are both provided with slots to increase inductance.

4. The ultra-wideband dual-polarization high-gain parabolic antenna according to claim 1, characterized in that: The excitation vibrator is a metal sheet with a vibrator diameter of 0.5λ to 0.8λ.

5. The ultra-wideband dual-polarization high-gain parabolic antenna according to claim 3, characterized in that: The diameter of the slot is 0.25λ.

6. The ultra-wideband dual-polarization high-gain parabolic antenna according to claim 1, characterized in that: The mounting assembly includes: a mounting plate, a holding plate, and at least one fixing bolt for fixing the relative positions of the mounting plate and the holding plate; One end of the mounting plate is detachably connected to the reflective arc plate and the feed assembly respectively; the other end of the mounting plate is detachably connected to one end of the fixing bolt; the other end of the fixing bolt is detachably connected to the holding plate; the mounting plate and the holding plate cooperate to form a clamping cavity for clamping the column.

7. The ultra-wideband dual-polarization high-gain parabolic antenna according to claim 6, characterized in that: Also included are adjustment bolts for adjusting the setting angle of the holding plate; An arc-shaped adjustment groove is provided on the mounting plate; one end of the adjustment bolt is detachably connected to the holding plate; the other end of the adjustment bolt is placed in the arc-shaped adjustment groove and can abut against the inner wall of the arc-shaped adjustment groove.

8. The ultra-wideband dual-polarization high-gain parabolic antenna according to claim 1, characterized in that: The main rod is made of UPVC material to increase wave transmittance.

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