JPWO2020012007A5 - - Google Patents
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- JPWO2020012007A5 JPWO2020012007A5 JP2021512452A JP2021512452A JPWO2020012007A5 JP WO2020012007 A5 JPWO2020012007 A5 JP WO2020012007A5 JP 2021512452 A JP2021512452 A JP 2021512452A JP 2021512452 A JP2021512452 A JP 2021512452A JP WO2020012007 A5 JPWO2020012007 A5 JP WO2020012007A5
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- reflector
- feed array
- afr
- antenna assembly
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Description
段階Ｓ３０で、決定されたフィードアレイ仕様が必要十分であるかが判定される。フィードアレイ仕様が（例えば、収容についてまたはヘリテージ要件と比較して）不十分であれば、Ｓ４０において、必要な仕様に適合するように、フィードアレイ配置を調整可能にする（簡略化による）、最適な反射鏡プロファイルを決定する処理が実行される。フィードアレイが必要十分であれば、方法は段階Ｓ５０に進む。 In step S30, it is determined whether the determined feed array specifications are necessary and sufficient. If the feed array specifications are inadequate (eg, for containment or compared to heritage requirements), then in S40, the feed array placement can be adjusted (by simplification) to meet the required specifications, optimally. The process of determining a suitable reflector profile is executed. If the feed array is necessary and sufficient, the method proceeds to step S50.
パラメータ化された成形最適化に、全アンテナ合成処理が組み込まれた、単一の処理にて、最適な反射鏡プロファイル決定が実施可能である。しかし、反射鏡形状合成方法を、二次計画法に基づいて決定された単一の反射鏡要素について決定されたビーム形状に適用することで、より早い技術となる。使用される周波数帯に典型的に依存する、反射鏡技術の物理的制限に関連する制約が、成形最適化処理に適用され得る。 Optimal reflector profile determination can be performed in a single process, with all antenna synthesis processing incorporated into the parameterized molding optimization. However, applying the reflector shape synthesis method to the beam shape determined for a single reflector element determined based on the quadratic programming will result in a faster technique. Constraints related to the physical limitations of the reflector technique, which are typically dependent on the frequency band used, can be applied to the molding optimization process.
システムは、最適な反射鏡プロファイルを決定するための最適化モジュール４０と、最適なプロファイルを、成形機能を表す一連の作動信号５５に変換する形状制御モジュール５０とを備える。同機能は、反射鏡６０に、それに応じて自身の表面のプロファイルを調整させるように適用される。 The system includes an optimization module 40 for determining the optimum reflector profile and a shape control module 50 for converting the optimum profile into a series of actuation signals 55 representing molding functions. The function is applied to cause the reflector 60 to adjust its surface profile accordingly.
最適化モジュール４０は、反射鏡の利用可能なプロファイルを特定する情報により構成される。同情報は、その内から最適な選択がなされ得る一組の個別のプロファイルの形態をとり得、または特定の表面のプロファイルを生成するために実現可能な反射鏡の表面の要素への分割および隣接する要素の相対移動を指定し得る。このような情報は、ＡＦＲアンテナが取り付けられる衛星ペイロードに搭載された、または地上にある、各種メーカーおよびモデルについて反射鏡構成を規定するデータベース８０から得られる。一例として、Ｋｕ帯放射に利用される反射鏡は、約２．５メートルの直径を有し得、３０個×３０個の制御可能要素のアレイを有し得る。 The optimization module 40 is composed of information that identifies the available profile of the reflector. The information can be in the form of a set of individual profiles from which the best choice can be made, or the splitting and adjoining elements of the reflector surface that are feasible to generate a particular surface profile . You can specify the relative movement of the elements to be done. Such information is obtained from Database 80, which defines reflector configurations for various manufacturers and models, mounted on satellite payloads to which AFR antennas are mounted, or on the ground. As an example, a reflector utilized for Ku band radiation may have a diameter of about 2.5 meters and may have an array of 30 x 30 controllable elements.
システムは、フィードアレイから特定の距離で、フィードアレイとともに特定の反射鏡プロファイルが利用されると実現可能なビーム形状をシミュレーション可能なビームモデラー９０を備える。ビームモデラーは、フィードアレイとインタフェースするビームフォーミングネットワークについての知識を有する。これにより、ビームレット形状、カバレッジエリア、指向性、電力拡散などについての所望のミッション要求が実現可能となるように、フィードアレイを介して信号にビームフォーミングがいかに適用されるかが制御される。 The system comprises a beam modeler 90 capable of simulating a beam shape that is feasible when a particular reflector profile is utilized with the feed array at a particular distance from the feed array. The beam modeler has knowledge of beamforming networks that interface with feed arrays. This controls how beamforming is applied to the signal via the feed array so that the desired mission requirements for beamlet shape, coverage area, directivity, power diffusion, etc. can be achieved.
最適化モジュール４０は、そもそも反射鏡の表面のプロファイルの調整が必要か、またはビームフォーミングネットワークへの調整により、ミッション要求を満たすことが可能かを判定するため、ビームモデラー９０とインタフェースする。したがってこれは、信号処理、または機械的システム構成、あるいはこれら２つの技術の組合せにより、ミッション要求を実現するかを判定する機構である。例えば、比較的小さな調整が求められるような特定の状況では、特定の物理的構成を維持し、ビームフォーミングネットワークを制御したほうが、特定のビーム形状を実現するのに効率的であり得る。一方、別の状況では、必要な調整はビームフォーミングネットワークの制御で実現可能な範囲を超えるため、その代わりにＡＦＲアンテナのフォーカス／デフォーカス、および／または形状調整が必要となる。 The optimization module 40 interfaces with the beam modeler 90 to determine if the profile of the surface of the reflector needs to be adjusted in the first place or if it can be adjusted to the beamforming network to meet the mission requirements. Therefore, this is a mechanism for determining whether the mission requirement is realized by signal processing, mechanical system configuration, or a combination of these two techniques. For example, in certain situations where relatively small adjustments are required, it may be more efficient to maintain a particular physical configuration and control the beamforming network to achieve a particular beam shape. On the other hand, in other situations, the required adjustments are beyond the feasible range of control of the beamforming network and instead require focus / defocus and / or shape adjustments for the AFR antenna.
決定された最適な反射鏡プロファイルに基づいて、形状制御モジュール５０は必要な駆動信号５５を、それに応じて反射鏡の表面を成形するため、反射鏡の表面の形状に関連付けられた１または複数のアクチュエータに適用する。 Based on the determined optimal reflector profile , the shape control module 50 is associated with the shape of the surface of the reflector to form the required drive signal 55 and the surface of the reflector accordingly. Applies to actuators.
上述のように、本発明の実施形態は、異なるフォーカス構成間、ならびに高および低倍率モード間の切り替えを容易にし得る。いずれの場合でも、フォーカス構成または倍率モード間で、動作範囲について特定の反射鏡の表面のプロファイルが選択されると、全動作範囲にわたる性能と、所望のアンテナ特性との間の最良の折衷を実現するように、特定の成形機能が反射鏡に適用されることが好ましい。
As mentioned above, embodiments of the present invention may facilitate switching between different focus configurations as well as between high and low magnification modes. In either case, when a particular reflector surface profile is selected for operating range between focus configurations or magnification modes, the best compromise between performance over the entire operating range and desired antenna characteristics is achieved. As such, it is preferred that a particular molding function be applied to the reflector.
Claims (8)
フィードアレイおよび反射鏡を有するＡＦＲアンテナと、
前記反射鏡の焦点領域が、前記フィードアレイの位置に対して移動可能となるように、前記反射鏡の位置を、前記フィードアレイの前記位置に対して移動させる機構と、
を備え、
前記反射鏡の表面のプロファイルは、前記ＡＦＲアンテナがマルチビームカバレッジを持つよう、前記フィードアレイの各々のフィードが複数のビームを生成するようなものであり、
前記機構は、前記複数のビームの各々が、フルフォーカス、フルデフォーカス、または、部分デフォーカスとなるように、前記反射鏡の前記位置を、前記フィードアレイの前記位置に対して移動させるように構成される、ＡＦＲアンテナアセンブリ。 Array-fed reflector (AFR) antenna assembly
With an AFR antenna with a feed array and reflector,
A mechanism for moving the position of the reflector with respect to the position of the feed array so that the focal region of the reflector can be moved with respect to the position of the feed array.
Equipped with
The profile of the surface of the reflector is such that each feed of the feed array produces multiple beams so that the AFR antenna has multi-beam coverage.
The mechanism moves the position of the reflector with respect to the position of the feed array such that each of the plurality of beams is fully focused, fully defocused, or partially defocused. Constructed , AFR antenna assembly.
前記成形機能を適用する手段は、前記反射鏡の表面の、１または複数の可動部に結合される、１または複数のアクチュエータを含む、請求項１から４のいずれか一項に記載のＡＦＲアンテナアセンブリ。 A means for applying a molding function to the surface of the reflector is provided.
The AFR antenna according to any one of claims 1 to 4, wherein the means for applying the molding function includes one or a plurality of actuators coupled to one or a plurality of movable parts on the surface of the reflector. assembly.
前記機構の駆動を制御するために地上局から信号を受信する制御手段と、
を備えるシステム。 The AFR antenna assembly according to any one of claims 1 to 4 .
A control means that receives a signal from a ground station to control the drive of the mechanism, and
A system equipped with.
前記機構の駆動を制御するために地上局から信号を受信する制御手段と、A control means that receives a signal from a ground station to control the drive of the mechanism, and
を備えるシステム。A system equipped with.
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GBGB1811459.5A GB201811459D0 (en) | 2018-07-12 | 2018-07-12 | Reconfigurable active array-fed reflector antenna |
| GB1811459.5 | 2018-07-12 | ||
| EP18290107.4A EP3595088A1 (en) | 2018-07-12 | 2018-09-25 | Array-fed reflector antenna |
| EP18290107.4 | 2018-09-25 | ||
| PCT/EP2019/068880 WO2020012007A1 (en) | 2018-07-12 | 2019-07-12 | Array-fed reflector antenna |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2021524723A JP2021524723A (en) | 2021-09-13 |
| JPWO2020012007A5 true JPWO2020012007A5 (en) | 2022-04-18 |
| JP7110532B2 JP7110532B2 (en) | 2022-08-02 |
Family
ID=63272973
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2021512452A Active JP7110532B2 (en) | 2018-07-12 | 2019-07-12 | Array-fed reflector antenna |
Country Status (8)
| Country | Link |
|---|---|
| US (2) | US11831075B2 (en) |
| EP (2) | EP3595088A1 (en) |
| JP (1) | JP7110532B2 (en) |
| CN (1) | CN112470341A (en) |
| AU (1) | AU2019301232B2 (en) |
| ES (1) | ES2874538T3 (en) |
| GB (1) | GB201811459D0 (en) |
| WO (1) | WO2020012007A1 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11658869B2 (en) * | 2021-04-09 | 2023-05-23 | Huawei Technologies Co., Ltd. | Method and apparatus for configuring a communication network using a connectivity metric |
| FR3122410A1 (en) | 2021-04-30 | 2022-11-04 | Airbus Defence And Space Sas | Reflector satellite and satellite assembly comprising such a satellite |
| US11606285B2 (en) | 2021-05-07 | 2023-03-14 | Huawei Technologies Co., Ltd. | Method and apparatus for configuring a communication network using a distance metric |
| CN113815909B (en) * | 2021-09-09 | 2023-10-27 | 中国人民解放军63920部队 | Uplink determining method and device for peer-to-peer mode combination configuration spacecraft |
| US11705630B1 (en) | 2022-04-05 | 2023-07-18 | Maxar Space Llc | Antenna with movable feed |
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-
2018
- 2018-07-12 GB GBGB1811459.5A patent/GB201811459D0/en not_active Ceased
- 2018-09-25 EP EP18290107.4A patent/EP3595088A1/en not_active Withdrawn
-
2019
- 2019-07-12 ES ES19737143T patent/ES2874538T3/en active Active
- 2019-07-12 WO PCT/EP2019/068880 patent/WO2020012007A1/en active Search and Examination
- 2019-07-12 AU AU2019301232A patent/AU2019301232B2/en active Active
- 2019-07-12 CN CN201980046274.5A patent/CN112470341A/en active Pending
- 2019-07-12 US US17/259,918 patent/US11831075B2/en active Active
- 2019-07-12 EP EP19737143.8A patent/EP3714510B1/en active Active
- 2019-07-12 JP JP2021512452A patent/JP7110532B2/en active Active
-
2023
- 2023-11-02 US US18/386,526 patent/US20240063551A1/en active Pending
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