JP2018160886A - フェーズド・アレイ・アンテナ・システムのための広帯域ビームの拡張 - Google Patents
フェーズド・アレイ・アンテナ・システムのための広帯域ビームの拡張 Download PDFInfo
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- JP2018160886A JP2018160886A JP2018001093A JP2018001093A JP2018160886A JP 2018160886 A JP2018160886 A JP 2018160886A JP 2018001093 A JP2018001093 A JP 2018001093A JP 2018001093 A JP2018001093 A JP 2018001093A JP 2018160886 A JP2018160886 A JP 2018160886A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q25/00—Antennas or antenna systems providing at least two radiating patterns
- H01Q25/04—Multimode antennas
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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
- H01Q3/26—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
- H01Q3/34—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 electrical means
- H01Q3/36—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 electrical means with variable phase-shifters
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/06—Arrays of individually energised antenna units similarly polarised and spaced apart
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/06—Arrays of individually energised antenna units similarly polarised and spaced apart
- H01Q21/061—Two dimensional planar arrays
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/06—Arrays of individually energised antenna units similarly polarised and spaced apart
- H01Q21/061—Two dimensional planar arrays
- H01Q21/065—Patch antenna array
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/06—Arrays of individually energised antenna units similarly polarised and spaced apart
- H01Q21/08—Arrays of individually energised antenna units similarly polarised and spaced apart the units being spaced along or adjacent to a rectilinear path
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q25/00—Antennas or antenna systems providing at least two radiating patterns
- H01Q25/002—Antennas or antenna systems providing at least two radiating patterns providing at least two patterns of different beamwidth; Variable beamwidth antennas
-
- 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
- H01Q3/24—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 orientation by switching energy from one active radiating element to another, e.g. for beam switching
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/02—Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
- G01S2013/0236—Special technical features
- G01S2013/0245—Radar with phased array antenna
- G01S2013/0263—Passive array antenna
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/0006—Particular feeding systems
- H01Q21/0025—Modular arrays
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/06—Arrays of individually energised antenna units similarly polarised and spaced apart
- H01Q21/22—Antenna units of the array energised non-uniformly in amplitude or phase, e.g. tapered array or binomial array
-
- 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
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- Variable-Direction Aerials And Aerial Arrays (AREA)
Abstract
Description
104 コントローラ
170 トランシーバ
Claims (14)
- 少なくとも2つの動作モードを有するマルチモード・フェーズド・アレイ・アンテナ(「MPAA」)であって、第1の動作モードがメイン・ビームを有する第1の放射パターンを生成し、第2の動作モードが第2のビームを有する第2の放射パターンを生成し、前記MPAAは、
放射素子のアレイとして配置された複数の放射素子と、
前記複数の放射素子と信号通信するコントローラと、
を備え、
前記コントローラは前記複数の放射素子を励起して、
前記第1の動作モードでの前記メイン・ビームを有する前記第1の放射パターンと、
前記第2の動作モードでの前記第2のビームを有する前記第2の放射パターンと
を生成するように構成され、
前記第2のビームは前記メイン・ビームより広く、
前記第2の放射パターンは前記複数の放射素子の単一の放射素子の放射パターンと同様であり、
前記コントローラはまた、前記第1のモード動作および前記第2の動作モードの間で切り替えるように構成される、
MPAA。 - 放射素子の前記アレイはアレイ中心を有し、
前記第2の放射パターンはおおよそ、前記アレイ中心に配置された単一の放射素子の増幅された放射パターンである、
請求項1に記載のMPAA。 - 前記単一の放射素子は略定指向性遠距離放射パターンおよび略無指向性遠距離放射パターンを有する、請求項2に記載のMPAA。
- 前記複数の放射素子はアレイ因子を有し、
前記アレイ因子はおおよそ定数のゲインを有する、
請求項3に記載のMPAA。 - 前記複数の放射素子の各放射素子は対応する放射素子放射パターンを有し、
前記複数の放射素子の各放射素子の前記放射素子放射パターンの全ての合計が前記第2の放射パターンをもたらす、請求項2に記載のMPAA。 - 前記複数の放射素子の各放射素子は送受信(「T/R」)モジュールである、請求項1に記載のMPAA。
- 前記複数の放射素子の各放射素子は、放射パターンおよび前記放射素子の偏向を含む対応する素子ベクトルを有する、請求項1に記載のMPAA。
- 前記複数の放射素子はアレイ因子を有し
前記アレイ因子はおおよそ定数のゲインを有する、
請求項7に記載のMPAA。 - 前記コントローラは前記複数の放射素子に対する複数の励起信号を決定することで前記複数の放射素子を励起するように構成され、
前記複数の励起信号は、前記単一の放射素子の電磁(「EM」)場に対するBessel関数の切断正則級数拡張を利用しEM場に対するBessel関数の前記切断正則級数拡張を前記MPAAに対するアレイ応答と同等視することにより決定される、
請求項8に記載のMPAA。 - 放射素子のアレイとして配置された複数の放射素子およびコントローラを有するマルチモード・フェーズド・アレイ・アンテナ(「MPAA」)により生産された第1の放射パターンのメイン・ビームを広げるための方法であって、
前記複数の放射素子を励起して第2の放射パターンを生成するステップ
を含み、
前記第2の放射パターンは前記複数の放射素子の単一の放射素子の放射パターンと同様であり、
前記第2の放射パターンは前記メイン・ビームより広い第2のビームを有する、
方法。 - 前記複数の放射素子を励起するステップが、前記第1の放射パターンを生成する第1の動作モードと前記第2の放射パターンを生成する第2の動作モードの間で前記コントローラを切り替えるステップを含む、請求項10に記載の方法。
- 前記複数の放射素子を励起するステップは前記複数の放射素子に対する複数の励起信号を決定するステップを含み、
前記複数の励起信号は、前記単一の放射素子の電磁(「EM」)場に対するBessel関数の切断正則級数拡張を利用しEM場に対するBessel関数の前記切断正則級数拡張を前記MPAAに対するアレイ応答と同等視することにより決定される
請求項10に記載の方法。 - 前記Bessel関数は次数iの第1種のBessel関数であり、iは整数であり、
前記正則級数はLaurent級数である、
請求項10に記載の方法。 - 不均等素子間隔を有するMPAAに適用され、前記Bessel関数は次数iの第1種のBessel関数であり、基準原点からの波長における前記素子の距離に対応する、請求項10に記載の方法。
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US15/413,175 US10686251B2 (en) | 2017-01-23 | 2017-01-23 | Wideband beam broadening for phased array antenna systems |
US15/413,175 | 2017-01-23 |
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JP2018160886A true JP2018160886A (ja) | 2018-10-11 |
JP7053272B2 JP7053272B2 (ja) | 2022-04-12 |
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US (1) | US10686251B2 (ja) |
EP (2) | EP3352299B1 (ja) |
JP (1) | JP7053272B2 (ja) |
CN (1) | CN108417999B (ja) |
Cited By (1)
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CN108417999B (zh) | 2021-10-12 |
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EP3783738A1 (en) | 2021-02-24 |
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