JP4648041B2 - 制御可能な屈折特性を備えた媒質 - Google Patents
制御可能な屈折特性を備えた媒質Info
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- JP4648041B2 JP4648041B2 JP2005066475A JP2005066475A JP4648041B2 JP 4648041 B2 JP4648041 B2 JP 4648041B2 JP 2005066475 A JP2005066475 A JP 2005066475A JP 2005066475 A JP2005066475 A JP 2005066475A JP 4648041 B2 JP4648041 B2 JP 4648041B2
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- 230000005670 electromagnetic radiation Effects 0.000 claims description 23
- 230000005540 biological transmission Effects 0.000 claims description 20
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- 230000005855 radiation Effects 0.000 claims description 13
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Classifications
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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
- H01Q3/44—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 electric or magnetic characteristics of reflecting, refracting, or diffracting devices associated with the radiating element
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y20/00—Nanooptics, e.g. quantum optics or photonic crystals
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
- G02B1/002—Optical elements characterised by the material of which they are made; Optical coatings for optical elements made of materials engineered to provide properties not available in nature, e.g. metamaterials
- G02B1/007—Optical elements characterised by the material of which they are made; Optical coatings for optical elements made of materials engineered to provide properties not available in nature, e.g. metamaterials made of negative effective refractive index materials
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q15/00—Devices for reflection, refraction, diffraction or polarisation of waves radiated from an antenna, e.g. quasi-optical devices
- H01Q15/0006—Devices acting selectively as reflecting surface, as diffracting or as refracting device, e.g. frequency filtering or angular spatial filtering devices
- H01Q15/0086—Devices acting selectively as reflecting surface, as diffracting or as refracting device, e.g. frequency filtering or angular spatial filtering devices said selective devices having materials with a synthesized negative refractive index, e.g. metamaterials or left-handed materials
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- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Nanotechnology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biophysics (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Aerials With Secondary Devices (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
Description
図1〜4の例のメタマテリアルでは、SRR18の規則的なアレイがμに関して負の実数部分を作り出し、ワイヤ・ストリップ16の規則的なアレイがεに関して負の実数部分を作り出す。
図中および文中で、類似した参照番号は機能的に類似した特徴に関連する。
Claims (10)
- 回路素子の3Dアレイと、
遠隔制御装置を前記3Dアレイ内の前記回路素子に結合させるための複数の制御ライン
を含む装置であって、
各々の回路素子が、前記制御ラインの1つから受信される制御信号の変化に応答して一方の回路状態から他方の回路状態に変わるように構成され、
前記3Dアレイの3D領域が、前記3D領域の前記回路素子が前記一方の回路状態にあるときに、或る周波数でメタマテリアルの挙動を示し、前記3D領域の前記回路素子が前記他方の回路状態にあるときに同じ前記周波数で通常の屈折媒質の挙動を示す装置。
- 前記回路素子がスプリットリング共振器とワイヤ・ストリップを有し、
前記アレイの前記回路素子の一部が、同じ前記回路素子の導電性部分を接続するスイッチまたはバラクタ・ダイオードを有する、請求項1に記載の装置。
- 個々の前記回路素子の一部がスイッチまたはバラクタ・ダイオードを有し、前記スイッチまたはバラクタ・ダイオードが、該スイッチまたはバラクタ・ダイオードを有する前記回路素子を前記2つの回路状態の間で変換することが可能であり、
前記スイッチまたはバラクタ・ダイオードが、前記個々の回路素子を前記遠隔制御装置に結合する前記制御ラインから受信される制御信号に応答する、請求項1に記載の装置。
- 無線送信または無線受信のためのシステムであって、
無線通信周波数を有する、無線送信器および無線受信器のうちの一方と、
前記送信器から送信される電磁放射のビームおよび前記受信器によって受信される電磁放射ビームのうちの一方を途中で捕捉するように配置される屈折媒質を含み、
前記屈折媒質が、第1と第2の状態の間で変わることが可能な3D領域を有し、前記3D領域が、前記第1の状態にあるときに前記無線通信周波数でメタマテリアルであり、前記第2の状態にあるときに前記無線通信周波数で通常の屈折媒質であり、
前記屈折媒質が、前記3D領域が前記第1の状態にあるときに第1の方向と無線送信器および無線受信器のうちの一方の間で途中で捕捉される前記ビームの一方を進路制御するように構成され、前記3D領域が前記第2の状態にあるときに異なる第2の方向と送信器および受信器のうちの一方の間で途中で捕捉される前記ビームの一方を進路制御するように構成されるシステム。
- 送信器および受信器のうちの一方および屈折媒質を地面から上の或る垂直距離に支持するタワーをさらに有する、請求項4に記載のシステム。
- 制御装置と、
前記制御装置を前記屈折媒質に結合させる複数のラインをさらに含み、
前記制御装置が、前記3D領域を前記第1と第2の状態の間で変換するために光学的もしくは電気的制御信号を前記ラインに送信するように構成される、請求項4に記載のシステム。
- 無線送信または無線受信のための方法であって、
無線通信のための第1の送信または受信の方向を選択する工程と、
3D媒質領域を、選択された周波数での通常の屈折状態から前記周波数でのメタマテリアル状態に変換するために光学的もしくは電気的制御信号を送信する工程と、
その後、前記選択された第1の方向と無線送信器および無線受信器のうちの一方の間で電磁放射のビームを進路制御する工程を含み、前記放射が前記選択された周波数を有し、前記進路制御工程が前記領域と通常の屈折媒質の間の界面で前記ビームを屈折させる工程を含む方法。
- 無線送信もしくは受信のための第2の方向を選択し、前記第2と第1の方向が異なる工程と、
前記領域を前記選択された周波数での前記通常の屈折状態に再変換して戻すために、送信される制御信号を変化させる工程と、
その後、前記選択された第2の方向と無線送信器および無線受信器のうちの一方の間で電磁放射のビームの第2のビームを進路制御する工程をさらに含み、電磁放射の前記第2のビームが前記選択された周波数を有し、第2のビームを進路制御する前記工程が前記3D媒質を通して前記第2のビームを通過させる工程を含む、請求項7に記載の方法。
- 前記3D媒質が回路素子の規則的な3Dアレイを有し、制御信号を送信する前記工程が前記領域に配置されたスイッチまたはバラクタ・ダイオードの状態を変化させる、請求項8に記載の方法。
- 前記3D屈折媒質の前記領域が楔形である、請求項9に記載の方法。
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/797,399 US7015865B2 (en) | 2004-03-10 | 2004-03-10 | Media with controllable refractive properties |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2005260965A JP2005260965A (ja) | 2005-09-22 |
JP4648041B2 true JP4648041B2 (ja) | 2011-03-09 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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JP2005066475A Expired - Fee Related JP4648041B2 (ja) | 2004-03-10 | 2005-03-10 | 制御可能な屈折特性を備えた媒質 |
Country Status (4)
Country | Link |
---|---|
US (1) | US7015865B2 (ja) |
EP (1) | EP1596470B1 (ja) |
JP (1) | JP4648041B2 (ja) |
DE (1) | DE602005002187T2 (ja) |
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- 2005-02-22 DE DE602005002187T patent/DE602005002187T2/de active Active
- 2005-03-10 JP JP2005066475A patent/JP4648041B2/ja not_active Expired - Fee Related
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Also Published As
Publication number | Publication date |
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DE602005002187D1 (de) | 2007-10-11 |
DE602005002187T2 (de) | 2008-05-29 |
EP1596470B1 (en) | 2007-08-29 |
JP2005260965A (ja) | 2005-09-22 |
US20050200540A1 (en) | 2005-09-15 |
EP1596470A1 (en) | 2005-11-16 |
US7015865B2 (en) | 2006-03-21 |
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