CN113851840A - Multilayer coaxial direct driving mechanism for mechanical phased array antenna - Google Patents
Multilayer coaxial direct driving mechanism for mechanical phased array antenna Download PDFInfo
- Publication number
- CN113851840A CN113851840A CN202110910957.XA CN202110910957A CN113851840A CN 113851840 A CN113851840 A CN 113851840A CN 202110910957 A CN202110910957 A CN 202110910957A CN 113851840 A CN113851840 A CN 113851840A
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- antenna
- antenna structure
- bearing
- motor
- phased array
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
- H01Q3/02—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system using mechanical movement of antenna or antenna system as a whole
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
- H01Q3/26—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture
- H01Q3/30—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture varying the relative phase between the radiating elements of an array
- H01Q3/32—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture varying the relative phase between the radiating elements of an array by mechanical means
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Abstract
The invention relates to the technical field of precise servo transmission, and discloses a multilayer coaxial direct driving mechanism for a mechanical phased array antenna, which comprises an antenna unit, a motor driving device, a sensor feedback device, a bearing device and a wheel track transmission device; the antenna unit is connected with the motor driving device; the bearing device is fixedly connected with the motor driving device; the wheel track transmission device is connected with the antenna unit; the sensor feedback device is connected with the motor driving device. The invention has the beneficial effects that: the antenna adopts a direct drive rotation execution technology, eliminates a mechanical belt transmission intermediate link, directly couples a drive motor on an antenna load feed layer and a radiation layer, directly drives a zero transmission mode of the antenna, and has the characteristics of low profile, higher static/dynamic rigidity, high-speed dynamic response, excellent speed regulation and control performance and zero maintenance.
Description
Technical Field
The invention belongs to the technical field of precise servo transmission, and particularly relates to a multilayer coaxial direct driving mechanism for a mechanical phased array antenna.
Background
The antenna relatively rotates along with the carrier through feeding, radiation and polarization in the movement process to realize beam two-dimensional scanning and polarization matching, so that the main beam of the antenna is always aligned to a set satellite to capture satellite signals, a real-time stable communication link is established with the satellite, the feedback of carrier course, speed and carrier attitude transformation can be automatically realized according to the signal attenuation and shielding, the course and pointing accuracy can be always kept through a servo control system, the satellite can be rapidly recaptured when the signals are recovered, the recovery communication is rapidly established, and fine adjustment can be carried out through the intervention of an upper computer manual team on the antenna position to enable the communication.
The existing vehicle-mounted mechanical phased-array antenna mostly adopts a belt transmission and gear transmission framework, and the transmission chain mode has poor rigidity due to the existence of an intermediate transmission conversion link, has response lag and nonlinear errors, and does not meet the requirements of high rigidity and large dynamic disturbance on a vehicle-mounted environment. High-frequency resonance can be caused by elastic deformation and rigidity difference, the bandwidth of a servo control system is inconsistent due to response lag, and the control precision is insufficient.
Disclosure of Invention
The invention aims to solve the problems, provides a multilayer coaxial direct driving device which adopts a direct driving rotation execution technology, eliminates a mechanical belt transmission intermediate link, directly couples a driving motor on an antenna load feed layer and a radiation layer, directly drives a zero transmission mode of an antenna, and has the characteristics of low profile, higher static/dynamic rigidity, high-speed dynamic response, excellent speed regulation and control performance and zero maintenance.
A multilayer coaxial direct drive mechanism for a mechanical phased array antenna comprises an antenna unit, a motor drive device, a sensor feedback device, a bearing device and a wheel-rail transmission device;
the antenna unit is connected with the motor driving device;
the bearing device is fixedly connected with the motor driving device;
the wheel track transmission device is connected with the antenna unit;
the sensor feedback device is connected with the motor driving device.
Preferably, the multilayer coaxial direct driving mechanism for the mechanical phased array antenna further comprises a base and a shell, and a cavity is formed between the base and the shell; an antenna unit, a motor driving device, a sensor feedback device, a bearing device and a wheel track transmission device are arranged in the cavity.
Preferably, the base and the housing are fixedly connected by screws.
Preferably, the motor driving device adopts a split type fan-shaped arc direct-drive motor, and comprises a motor rotor and a motor stator; the motor rotor is fixedly connected with the antenna unit, and the sensor feedback device is aligned with the motor rotor; the motor stator is fixedly connected with the shell; the antenna unit realizes that the main beam of the antenna always aims at the set satellite through the motor driving device in the moving process along with the carrier.
Preferably, the antenna unit comprises a first antenna structure, a second antenna structure, a third antenna structure and a fourth antenna structure, and the first antenna structure, the second antenna structure, the third antenna structure and the fourth antenna structure are sequentially stacked from bottom to top and placed in the cavity; the antenna structures adopt a multilayer stacked coaxial transmission structure, the structure is novel, and the ultralow profile characteristic of the whole machine is ensured.
Preferably, two wheel track transmission devices are arranged between the first antenna structure and the base, between the first antenna structure and the second antenna structure, between the second antenna structure and the third antenna structure, and between the third antenna structure and the fourth antenna structure; one wheel track transmission device is arranged on the left sides of the first antenna structure, the second antenna structure, the third antenna structure and the fourth antenna structure, and the other wheel track transmission device is arranged on the right sides of the first antenna structure, the second antenna structure, the third antenna structure and the fourth antenna structure; the wheel track driving device is used for ensuring that relative movement of antenna structures of all layers is realized under the minimum friction force.
Preferably, the wheel-track transmission device is rigidly connected with the base, the first antenna structure, the second antenna structure, the third antenna structure and the fourth antenna structure.
Preferably, the bearing device adopts a disc type bearing and comprises a bearing inner ring I, a bearing inner ring II and a bearing outer ring; the bearing devices are arranged on the shells on the two sides of the antenna unit, and the shells on the two sides are respectively provided with two bearing devices; the double-inner-outer-ring rotor and the single outer ring can realize the fixed support of the motor driving device, and simultaneously ensure enough rigidity and strength.
Preferably, two groups of motor driving devices are arranged on each bearing device; and the motor driving device on each bearing device respectively provides driving force for different antenna structures.
Compared with the prior art, the beneficial effects of adopting the technical scheme are as follows:
(1) the multilayer coaxial direct driving mechanism adopts an electromechanical and magnetic integrated system integrated design, has a compact structure and a lower overall profile, and can realize conformal design with a machine body on an airborne platform and good pneumatic performance.
(2) The multi-layer antenna unit structure is a thin-wall disc type structure, a split type linear motor driving mode is innovatively adopted, the multi-layer antenna unit structure is coupled with an antenna load, a transmission design scheme is omitted, a transmission system has high static/dynamic rigidity and low-speed stability and regulation and control performance in a stable tracking stage, and the multi-layer antenna unit structure is particularly suitable for high-rigidity and large-dynamic interference environments of airborne communication equipment in the processes of takeoff, landing, flying and the like of airplanes.
(3) The airborne environment product is difficult to maintain and high in cost. The direct drive zero transmission mode reduces mechanical wear and transmission errors, thoroughly eliminates the problems of common oil leakage, mechanical noise and belt aging gear wear of the motor, reduces maintenance and repair workload, and prolongs the mean time of no fault of the system.
Drawings
Fig. 1 is a sectional view showing the overall structure of the drive mechanism of the present invention.
Fig. 2 is a partially enlarged view of the area a in fig. 1.
Fig. 3 is a top view of the second antenna structure in the driving structure, and the motor driving device and the sensor feedback device corresponding to the second antenna structure.
In the figure: 1-antenna configuration one; 2-antenna structure two; 3-antenna structure three; 4-antenna structure four; 5-wheel-rail transmission device; 6-a bearing arrangement; 61-bearing outer race; 62-bearing inner race one; 63-bearing inner ring two; 7-a housing; 8-motor drive means; 81-a motor stator; 82-a motor rotor; 9-sensor feedback means; 10-base.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
Examples
As shown in fig. 1-2, a multilayer coaxial direct drive mechanism for a mechanical phased array antenna comprises an antenna unit, a motor drive device, a sensor feedback device 9, a bearing device 6 and a wheel track transmission device 5; the antenna unit is connected with the motor driving device 8; the bearing device 6 is fixedly connected with the motor driving device 8; the wheel track transmission device 5 is connected with the antenna unit; the sensor feedback device 9 is connected with the motor driving device 8.
The multilayer coaxial direct driving mechanism for the mechanical phased array antenna further comprises a base and a shell, and a cavity is formed between the base 10 and the shell 7; and an antenna unit, a motor driving device 8, a sensor feedback device 9, a bearing device 6 and a wheel-track transmission device 5 are arranged in the cavity.
The base 10 and the housing 7 are fixedly connected by screws.
The antenna unit comprises an antenna structure I1, an antenna structure II 2, an antenna structure III 3 and an antenna structure IV 4, wherein the antenna structure I1, the antenna structure II 2, the antenna structure III 3 and the antenna structure IV 4 are sequentially stacked and placed in the cavity from bottom to top; namely, the first antenna structure 1 is placed on the base 10, the second antenna structure 2 is stacked on the first antenna structure 1, the third antenna structure 3 is stacked on the second antenna structure 2, and the fourth antenna structure 4 is stacked on the third antenna structure 3; the antenna structures adopt a multilayer stacked coaxial transmission structure, the structure is novel, and the ultralow profile characteristic of the whole machine is ensured.
Two wheel track transmission devices 5 are arranged between the antenna structure I1 and the base 10, between the antenna structure I1 and the antenna structure II 2, between the antenna structure II 2 and the antenna structure III 3, and between the antenna structure III 3 and the antenna structure IV 4; one wheel track transmission device 5 is placed on the left side of the first antenna structure 1, the second antenna structure 2, the third antenna structure 3 and the fourth antenna structure 4, and the other wheel track transmission device 5 is placed on the right side of the first antenna structure 1, the second antenna structure 2, the third antenna structure 3 and the fourth antenna structure 4.
The wheel track transmission device 5 is rigidly connected with the base 10, the antenna structure I1, the antenna structure II 2, the antenna structure III 3 and the antenna structure IV 4; the wheel-track driving device 5 is used for ensuring that the relative movement of the antenna structures of each layer is realized under the minimum friction force.
The antenna structure I1, the antenna structure II 2, the antenna structure III 3 and the antenna structure IV 4 are sequentially a feed layer antenna unit, a radiation layer antenna unit, an initial polarization layer antenna unit and a tail end polarization layer antenna unit.
The motor driving device 8 adopts a split type fan-shaped arc direct-drive motor and comprises a motor rotor 82 and a motor stator 81; the motor rotor 82 is fixedly connected with the antenna unit, and the sensor feedback device 9 is aligned with the motor rotor 82; the motor stator 81 is fixedly connected with the shell 7; the antenna unit realizes that the main beam of the antenna always aims at the set satellite through the motor driving device in the moving process along with the carrier.
The motor rotor 82 is an iron core winding, and the motor stator 81 is magnetic steel.
The bearing device 6 adopts a disc type bearing and comprises a first bearing inner ring 61, a second bearing inner ring 62 and a bearing outer ring 63; the bearing devices 6 are arranged on the shells at the two sides of the antenna unit, and two bearing devices are respectively arranged on the shells at the two sides; the double-inner-outer-ring rotor and the single outer ring can realize the fixed support of the motor driving device, and simultaneously ensure enough rigidity and strength.
Each bearing device 6 is provided with two groups of motor driving devices 8; the motor driving device 8 on the bearing device 6 respectively provides driving force for different antenna structures; four antenna configurations require four bearing arrangements and eight sets of motor drives.
As shown in fig. 3, the sensor feedback device 9 is aligned with the motor rotor 82, the motor rotor 82 is connected with the antenna structure, and the motor stator 81 is connected with the motor rotor 82.
The multilayer coaxial direct driving mechanism for the mechanical phased array antenna comprises: the wheel track driving device is rigidly connected with each layer of antenna structure, the track surface sequentially comprises a base 10, an antenna structure I1, an antenna structure II 2 and an antenna structure III 3, and the wheel track driving device 5 ensures smooth relative motion of each layer of antenna structure; in driving, each antenna structure is fixedly connected with the motor rotor 82 of the motor driving device at two sides of the cavity, and the motor stator 81 of the motor driving device 8 is fixedly connected with the shell 7, so that the distance between the motor stator 81 and the motor rotor 82 of the motor driving device is ensured; in the transmission structure, every two motor driving devices 8 are fixedly connected with a bearing device 6, and the bearing device 6 adopts a special customized double-inner-ring rotor and single-outer-ring form to increase the integral rigidity; in terms of drive feedback, a specially-customized sensor feedback device 9 is installed synchronously with the axial direction of the drive motor device, and the relative installation angle is ensured not to be interfered. The integral multilayer coaxial direct driving mechanism is in a compact design and has better rigidity to meet the requirement of recording high-frequency vibration working conditions.
The multilayer coaxial direct drive mechanism has the working mode that: the antenna unit is aligned with a set satellite all the time through a motor driving device in the moving process of a carrier, a sensor feedback device completes closed-loop control to achieve accurate alignment of satellite signals, a bearing device achieves fixed support of a load and guarantees enough rigidity and strength, and a wheel track driving device guarantees relative operation among antenna structures of all layers.
The invention is not limited to the foregoing embodiments. The invention extends to any novel one, or any novel combination, of the features disclosed in this specification and any novel one, or any novel combination, of the steps of any method or process so disclosed. Those skilled in the art to which the invention pertains will appreciate that insubstantial changes or modifications can be made without departing from the spirit of the invention as defined by the appended claims.
Claims (9)
1. A multilayer coaxial direct drive mechanism for a mechanical phased array antenna is characterized by comprising an antenna unit, a motor drive device, a sensor feedback device, a bearing device and a wheel track transmission device;
the antenna unit is connected with the motor driving device;
the bearing device is fixedly connected with the motor driving device;
the wheel track transmission device is connected with the antenna unit;
the sensor feedback device is connected with the motor driving device.
2. The multilayer coaxial direct drive mechanism for a mechanical phased array antenna of claim 1, further comprising a base and a housing, wherein the base and the housing define a cavity therebetween; an antenna unit, a motor driving device, a sensor feedback device, a bearing device and a wheel track transmission device are arranged in the cavity.
3. The multilayer coaxial direct drive mechanism for a mechanical phased array antenna of claim 2, wherein the base and the housing are fixedly attached by screws.
4. The multilayer coaxial direct drive mechanism for the mechanical phased array antenna as claimed in claim 2, wherein the motor driving device adopts a split type fan-shaped arc direct drive motor, comprising a motor rotor and a motor stator; the motor rotor is fixedly connected with the antenna unit, and the sensor feedback device is aligned with the motor rotor; the motor stator is fixedly connected with the shell.
5. The multilayer coaxial direct drive mechanism for a mechanical phased array antenna according to claim 2, wherein the antenna unit comprises a first antenna structure, a second antenna structure, a third antenna structure and a fourth antenna structure, and the first antenna structure, the second antenna structure, the third antenna structure and the fourth antenna structure are stacked from bottom to top and placed in the cavity.
6. The multilayer coaxial direct drive mechanism for a mechanical phased array antenna as claimed in claim 5, wherein two said wheel track actuators are provided between said first antenna structure and said base, between said first antenna structure and said second antenna structure, between said second antenna structure and said third antenna structure, and between said third antenna structure and said fourth antenna structure; one wheel track transmission device is arranged on the left sides of the first antenna structure, the second antenna structure, the third antenna structure and the fourth antenna structure, and the other wheel track transmission device is arranged on the right sides of the first antenna structure, the second antenna structure, the third antenna structure and the fourth antenna structure.
7. The multi-layer coaxial direct drive mechanism for a mechanical phased array antenna of claim 6, wherein said wheel-track actuator is rigidly connected to said base, said first antenna structure, said second antenna structure, said third antenna structure, and said fourth antenna structure.
8. The multilayer coaxial direct drive mechanism for the mechanical phased array antenna according to claim 1, wherein the bearing device adopts a disc bearing, and comprises a first bearing inner ring, a second bearing inner ring and a bearing outer ring; the bearing devices are arranged on the shells on the two sides of the antenna unit, and the shells on the two sides are respectively provided with two bearing devices.
9. The multi-layer coaxial direct drive mechanism for a mechanical phased array antenna of claim 1, wherein there are two sets of said motor drives on each of said bearing means.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110910957.XA CN113851840B (en) | 2021-08-10 | 2021-08-10 | Multilayer coaxial direct driving mechanism for mechanical phased array antenna |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110910957.XA CN113851840B (en) | 2021-08-10 | 2021-08-10 | Multilayer coaxial direct driving mechanism for mechanical phased array antenna |
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| CN113851840A true CN113851840A (en) | 2021-12-28 |
| CN113851840B CN113851840B (en) | 2023-09-22 |
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Citations (8)
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|---|---|---|---|---|
| US4739337A (en) * | 1985-09-09 | 1988-04-19 | Mobile Satellite Corporation | Mobile mechanically steerable satellite tracking antenna |
| EP2463954A1 (en) * | 2010-12-09 | 2012-06-13 | Selex Sistemi Integrati S.p.A. | Antenna base |
| CN209675488U (en) * | 2019-05-29 | 2019-11-22 | 航天神禾科技(北京)有限公司 | A kind of backpack SOTM satellite antenna |
| CN112366853A (en) * | 2020-10-20 | 2021-02-12 | 溧阳市宏达电机有限公司 | Direct drive motor integrated with satellite antenna |
| CN112682490A (en) * | 2020-12-22 | 2021-04-20 | 正成集团科技有限公司 | Stack type transmission device suitable for low-profile communication terminal |
| CN213043064U (en) * | 2020-10-28 | 2021-04-23 | 黄聪 | VICTS phased array antenna based on disc motor |
| CN213460079U (en) * | 2020-12-22 | 2021-06-15 | 正成集团科技有限公司 | Low-profile antenna suitable for low-profile communication terminal |
| CN113219873A (en) * | 2021-05-11 | 2021-08-06 | 上海埃威航空电子有限公司 | Phased array antenna motion control device and control method thereof |
-
2021
- 2021-08-10 CN CN202110910957.XA patent/CN113851840B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4739337A (en) * | 1985-09-09 | 1988-04-19 | Mobile Satellite Corporation | Mobile mechanically steerable satellite tracking antenna |
| EP2463954A1 (en) * | 2010-12-09 | 2012-06-13 | Selex Sistemi Integrati S.p.A. | Antenna base |
| CN209675488U (en) * | 2019-05-29 | 2019-11-22 | 航天神禾科技(北京)有限公司 | A kind of backpack SOTM satellite antenna |
| CN112366853A (en) * | 2020-10-20 | 2021-02-12 | 溧阳市宏达电机有限公司 | Direct drive motor integrated with satellite antenna |
| CN213043064U (en) * | 2020-10-28 | 2021-04-23 | 黄聪 | VICTS phased array antenna based on disc motor |
| CN112682490A (en) * | 2020-12-22 | 2021-04-20 | 正成集团科技有限公司 | Stack type transmission device suitable for low-profile communication terminal |
| CN213460079U (en) * | 2020-12-22 | 2021-06-15 | 正成集团科技有限公司 | Low-profile antenna suitable for low-profile communication terminal |
| CN113219873A (en) * | 2021-05-11 | 2021-08-06 | 上海埃威航空电子有限公司 | Phased array antenna motion control device and control method thereof |
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| Title |
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| AJITH KUMAR M. M.; AMALENDU PATNAIK; CHRISTOS G. CHRISTODOULOU: "Design and Testing of a Multifrequency Antenna With a Reconfigurable Feed", 《IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS》, pages 730 * |
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