JP2009509416A - 導波管をベースとする無線分配システムおよびその作動方法 - Google Patents
導波管をベースとする無線分配システムおよびその作動方法 Download PDFInfo
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Abstract
Description
この特許出願は、2005年9月19日に「導波管無線分配システム」を発明の名称として出願された米国仮特許出願第60/718,419号の利益を主張するものである。
本明細書に開示する技術および原理は、無線分配システムを提供するものであり、より詳細にはビル、例えばオフィス、工場、倉庫、学校、家庭および政府施設およびオープン領域、例えばスポーツスタジアム、公園、道路および鉄道において無線信号を分配し、収集するための高効率の導波管をベースとするシステムに関する。本明細書に開示する要旨の1つの特徴によれば、簡略化された、高効率の、導波管をベースとする無線分配システムが提供される。ここに開示する導波管をベースとする無線分配システムは、信号源からの無線信号を、信号受信機の近くのロケーションにトランスポートする。無線導波管は中空横断面の構造建建築部を備え、この中空横断面構造的建築部は導電性の内側表面を含む。少なくとも1つの無線通信信号カップリングデバイスは、無線導波管に沿った少なくとも1つの所定の開口ロケーションにおいて、無線導波管に一部が挿入されている。インピーダンスマッチング回路がカップリングデバイスの出力を、少なくとも1つの無線信号ラジエータのための少なくとも1つの接続ポイントに接続している。ここに開示するシステムの構造および作動により、異なる多数のコンフィギュレーションおよび実現例が可能である。
開示する要旨は、添付図面に示された導波管をベースとする無線分配システムの種々の実施例を含み、同様な参照番号はいくつかの図面にわたって同様な部品およびアセンブリを示す。種々の実施例を参照しても、請求項に記載した要旨の範囲を制限するものではない。
図1は、所定のバンドパス周波数レンジにおいて、請求項記載の要旨の特徴に従って構成された導波管をベースとする無線分配システム10の一実施例を示す。この導波管をベースとする無線分配システム10は、導波管11を備え、この導波管は開口部24および/または54および/またはスロット28を備えた1つ以上の導波管セクション12と、セクションコネクタ22と、端部アセンブリ14および16と、取り付けられた補助アセンブリ30、52および34から構成されている。
図5A〜5Bは、図1に示されるように、信号カプラー34および52を使用して導波管セクション12から信号エネルギーを出力結合するための実施例を示す。導波管セクション12は導波管11を形成するように一体に接合することが好ましい。図6および7は、2つのタイプのカプラー、すなわち電気カプラーと磁気カプラーのための好ましい実施例をそれぞれ示す。
図6は、導波管セクション12の内外へ無線信号を結合するための好ましい電気信号カプラーを示す。この電気信号カプラー52は、4つのセクション48、216、218および220から成る。
図8A〜8Cは、導波管セクション接続実施例の分解図および組み立て図を示す。セクションコネクタアセンブリ22により別の導波管セクション12には好ましい楕円導波管セクション12が機械的かつ電気的に接続されている。図8Bおよび8Cを参照すると、セクションコネクタアセンブリ22は金属コネクタシュラウド300、ストラップ298およびオプションのクランプ受信機アセンブリ296から構成されている。ストラップ298は留め金304により固定されており、この留め金は共通螺旋ネジ被動タイプのホースクランプ張力機構を使用してもよいし、または閉じた位置においてあらかじめ調節された張力により、ストラップ298に張力を加える他の任意のタイプの機構、例えば好ましくはストラップ298に設けられたホールドオーバータイプの固定留め金でもよい。シュラウド300の反対側にはオプションのクランプアセンブリ296が取り付けられ、このクランプアセンブリ296は、導波管セクション12上のオプションのクランプ受信機に嵌合する。
システムに必要な基本的な導波管形状は、必要な形状に押し出すか、または引き抜くことによって製造してもよいし、または中間形状に成形し、その後、最終形状となるように仕上げてもよい。導波管の材料が金属製である場合、好ましい金属はアルミまたは銅である。材料がプラスチックである場合、完成した導波管の内側表面に高導電性コーティングを設ける。プロセスで成形可能な任意の材料、例えばポリ塩化ビニル(PVC)を使用できる。別の製造方法として、一般的に入手できる金属またはプラスチックの標準的形状から、導波管横断面を形成し、プロセス、例えば圧縮を通してこれを変形し、この形状を所望する横断面の形状に成形する方法がある。
図10A、10Bおよび10Cは、導波管11に沿ってモータ駆動される信号カプラーを使用し、信号コネクタへの信号結合を設置後調節するようになっている、請求項に記載の要旨にかかわる導波管をベースとする無線分配システムの実現例を示し、信号コネクタの各々は設置後、遠隔的かつ選択的に調節自在となっている。
図11は、平らでロール加工された板金素材から導波管セクションを形成するための一実施例を示す。板金素材は成形されると、高導電性のスムーズな内側表面を維持できる。一様な金属または基礎となる金属、例えば銅、アルミまたは他の任意の高導電性材料がコーティングまたは接合されたスチールのスムーズな表面を有する板金の供給ロールを使用できる。最終形状の部品を形成するのに必要な幅のシート材料が、スタンド382に支持されている成形器390の一端にて、例えばロール状の供給形状に吊り下げられている。好ましい材料は、高導電性金属表面、例えば成形プロセス後、寸法を良好に維持するアルミまたは銅を有していなければならない。成形でき、必要な形状を維持できれば、プラスチック材料も使用できる。この材料は良好な構造上の強度を有すると共に、機械的プロセスまたは電気的プロセスにより高導電性材料、例えば銅、アルミ、銀、金または十分高い導電度を有する他の材料でコーティングしなければならない。これとは異なり、導波管セクション12の内側表面となる広い表面に十分導電性の材料であらかじめコーティングしてもよい。
図14は、本発明に従って製造された導波管11の無負荷の約60メートル(200フィート)の楕円横断面バージョンの電圧定在波比(VSWR)の測定結果を示し、この導波管は図8A、8Bおよび8Cと基本的に同じように説明され、示された導波管説明12およびセクションコネクタ、並びに図5Cおよび5Dに説明され、図示されているような端部セクションを使用しているが、この試験では導波管11に沿った中間信号カプラーまたは放射スロットは使用されていない。アンリツ社のモデル331Aサイトマスタースイープ測定器を使って、2400MHz〜2500MHzまでのスイープ無線周波数信号を注入し、遠方端セクションに設けた同軸コネクタにおいて、50Ωの負荷で導波管の遠方端部を終端したときに、システムの一端を見た場合のリターン信号パワーを検出した。次にこのデータからVSWRを計算した。注目されるように、当該バンドにわたって極めて低いレベルの信号反射しか示されなかった。
Claims (49)
- 少なくとも1つの信号源と信号受信機に近い少なくとも1つのロケーションとの間で無線信号を搬送するための、簡略化された高い効率の無線信号分配システムであって、
高導電性の内側表面を有する中空横断面の構造的建造物を含み、前記無線信号源から前記無線受信機のロケーションまで、前記無線通信信号を伝送するための無線導波管と、
前記無線導波管に沿った少なくとも1つの所定のロケーションで、前記無線導波管内に挿入された少なくとも1つの無線信号結合デバイスと、
インピーダンス変換を行い、前記結合デバイスの出力を少なくとも1つの無線信号コネクタに接続するインピーダンスマッチング回路と、
を備えた、簡略化された高効率の無線信号分配システム。 - 前記導波管は、2つ以上の物理的に分離されたセクションを備え、これらセクションは前記無線導波管を形成するように一体に接合されている、請求項1記載のシステム。
- 前記中空導波管は、1つ以上の導波管伝搬モードで作動できる、請求項1記載のシステム。
- 前記導波管の前記中空横断面の構造的建造部は、基本的には楕円の建造物である、請求項1記載のシステム。
- 前記導波管の前記中空横断面の構造的建造部は、基本的には四角形の建造物である、請求項1記載のシステム。
- 前記導波管の前記中空横断面の構造的建造部は、基本的には円形の建造物である、請求項1記載のシステム。
- 前記導波管の前記中空横断面の構造的建造部は、所望する周波数レンジ内の電磁エネルギーの伝搬をサポートするための1つの、または複数の形状を基本的に備える、請求項1記載のシステム。
- 前記無線導波管は、基本的には金属建造物を含む、請求項1記載のシステム。
- 前記導波管は、押し出しプロセスを使って製造されている、請求項1記載の導波管。
- 前記導波管は、変形されたプリカーサの中空形状を使って製造されている、請求項1記載の導波管。
- スタート板金から無線導波管を製造するのに、成形およびパンチングプロセスを使用する、請求項1記載の導波管。
- スタート板金素材から導波管を部分的に製造する、請求項11記載の方法。
- スタート板金プロセスは、最終無線導波管の内側表面となる、少なくとも表面に、高導電性コーティングがコーティングされた板金を含む、請求項11記載の方法。
- 圧接加工または溶接により前記最終板金成形体を閉じる、請求項11記載の方法。
- 前記無線導波管は基本的にはプラスチックの建造物を含む、請求項1記載のシステム。
- 前記プラスチック成形体の内側表面は高導電性金属で構成されている、請求項15記載の導波管。
- 前記システムは、少なくとも1つの無線周波数検波器を含む、請求項1記載のシステム。
- 前記導波管内で1つ以上の伝搬モードを使用することにより、所定の周波数の1つ以上の信号を無線導波管に多重化する、請求項1記載のシステム。
- 前記導波管に信号インターフェースアセンブリが取り付けられ、前記インターフェースアセンブリは送信機、受信機、トランシーバ、1つまたは複数のフィルタ、合波器、デュプレクサ、1つまたは複数の増幅器、もしくはこれらの任意の組み合わせ、または導波管の内外に無線信号を接続するようになっている他の任意の受動的または能動的無線周波数デバイスである、請求項1記載のシステム。
- ケーブルまたはパイプを支持するために使用されている構造物に前記無線導波管が機械的に取り付けられている、請求項1記載のシステム。
- 前記無線導波管はケーブルまたはパイプのための支持構造体の少なくとも一部を形成する、請求項1記載のシステム。
- 前記システムは、ビルの建築特徴部内に組み込まれている、請求項1記載のシステム。
- ビルの暖房、換気および空調(HVAC)プレナムスペース内の無線分配システムの設置に関する、対応する防火安全基準を満たすのに適した材料で、前記無線分配システムが製造されている、請求項1記載のシステム。
- 前記無線導波管に沿って位置する少なくとも1つのあらかじめ設けられた開口部を更に含む、請求項1記載のシステム。
- 前記開口部は前記導波管からフリースペースまでの直接ラジエータとなっている、請求項24記載の、あらかじめ設けられた開口部。
- 前記開口部は開口度のサイズが可変である、請求項25記載の直接放射開口部。
- 除去可能な材料を前記開口部に載せると、前記導波管をシールすると共に前記無線周波数の完全性を再確立する、除去可能な材料で前記あらかじめ設けられている開口部を最初に被覆する、請求項24記載のあらかじめ設けられた開口部。
- 出力が前記無線導波管の外側のコネクタポートに接続されているインピーダンスマッチング回路に、前記無線導波管の内部から所望するレベルの1つ以上の信号を可変結合するよう、前記信号結合デバイスの一部は前記中空横断面の構造的建造物内に挿入されている、請求項1記載のシステム。
- 前記信号結合およびインピーダンスマッチング回路は、前記無線導波管から電磁エネルギーを放射するための電磁放射デバイスに直接取り付けられている、請求項28記載のシステム。
- 前記信号結合デバイスは、基本的には前記無線導波管内の電界をサンプリングすることにより作動する、請求項1記載のシステム。
- 前記インピーダンスマッチング回路は、前記無線導波管内のプローブの低いリアクティブインピーダンスを、前記インピーダンスマッチング回路からの出力に対して、より高い非リアクティブインピーダンスに変換する回路を含む、請求項1記載のシステム。
- 前記導波管内への前記電気プローブの進入深度を変える際に、前記電気プローブのインピーダンス内の固有の容量性リアクタンスを可変相殺するよう、前記結合デバイスと電気的にタンデム状となるように可変インダクタンスが使用されている、請求項1記載の信号結合デバイス。
- 前記可変インダクタンスが前記プローブデバイスの要素の内部に形成されている、請求項31記載のプローブアセンブリ。
- 前記電気プローブを前記導波管内に伸長させる際に、前記可変インダクタンスの値が減少する、請求項32記載の信号カプラー。
- 前記信号デバイスは、基本的には前記無線導波管内の導線ループ内の磁界をサンプリングすることによって作動する、請求項1記載のシステム。
- 前記導波管内の前記ループプローブのサイズを変える際に、前記導線ループプローブのインピーダンス内固有の誘導性リアクタンスを可変相殺するよう、前記結合デバイスと電気的にタンデム状に可変容量が使用されている、請求項35記載の信号結合デバイス。
- 前記可変容量は、前記導線ループプローブデバイスの要素内に形成されている、請求項36記載の信号結合回路。
- 前記導線ループプローブが前記導波管内に伸長する際に、前記可変容量が増加する、請求項36記載の信号結合回路。
- 前記無線導波管からの結合量は、前記導波管内で前記導線ループプローブを回転することによって変化する、請求項35記載の信号結合回路。
- ラップアラウンド金属スリーブを使用することによって前記無線導波管の2つ以上のセクションが機械的かつ電気的にタンデム状に接続されている、請求項1記載の無線導波管。
- 1つ以上の円周クランプにより前記スリーブが固定されている、請求項40記載のラップアラウンドスリーブ。
- 締結されたシェル形状の接合デバイスを使って、前記無線導波管の2つ以上のセクションが機械的かつ電気的に接続されている、請求項1記載の無線導波管。
- 少なくとも1つの信号源と信号受信機に近い少なくとも1つのロケーションとの間で無線信号を搬送するための、簡略化された高い効率の、遠隔調節可能な無線信号分配システムであって、
高導電性の内側表面を有する中空横断面の構造的建造物を含み、前記無線信号源から前記無線受信機のロケーションまで、前記無線通信信号を伝送するための無線導波管と、
前記無線導波管に沿った少なくとも1つの所定のロケーションで、前記無線導波管内に少なくとも一部が挿入された少なくとも1つの遠隔調節可能な無線信号結合デバイスと、
インピーダンス変換を行い、前記少なくとも1つの信号結合デバイスのインピーダンスを少なくとも1つの無線信号コネクタに接続するインピーダンスマッチング回路と、
を備えた、簡略化された高効率の、遠隔調節可能な無線信号分配システム。 - 前記遠隔調節可能な無線信号カプラーデバイスを制御し、モニタする電気信号機能を実行するための電気信号および制御回路を更に備えた、請求項43記載のシステム。
- 前記無線導波管内の少なくとも1つの所定のポイントにおいて、信号をモニタするための少なくとも1つの無線周波数検波器を更に備えた、請求項43記載のシステム。
- 前記結合デバイスは、この結合デバイスの機械的な位置データを測定し、レポートするために内蔵された、少なくとも1つのセンサを有する、請求項43記載の遠隔調節可能な無線信号結合デバイス。
- 電気または導線ループ信号結合デバイスを更に備えた、請求項15記載のシステム。
- 電気または時期ループ信号結合デバイスと前記出力コネクタとの間に設けられたインピーダンスマッチング回路を更に備えた、請求項15記載のシステム。
- 少なくとも1つの無線導波管と、
流体またはガスの消火媒体と、
機能を組み合わせた少なくとも1つのアンテナおよび流体もしくはガス放出アセンブリとを備え、
前記少なくとも1つの無線導波管、アンテナおよび流体消火システムを提供する、組み合わせた機能のために関連している、二重機能の導波管をベースとする無線分配システム。
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US8570212B2 (en) | 2010-04-09 | 2013-10-29 | Furuno Electric Company Limited | Waveguide converter, antenna and radar device |
US9727762B2 (en) | 2013-08-22 | 2017-08-08 | Fujitsu Limited | Wireless communication module, wireless communication system, and communication method |
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WO2021010384A1 (ja) * | 2019-07-16 | 2021-01-21 | 戸田建設株式会社 | 導波管アンテナによる通信システム |
JP2021016114A (ja) * | 2019-07-16 | 2021-02-12 | 戸田建設株式会社 | 導波管アンテナによる通信システム |
JP7252849B2 (ja) | 2019-07-16 | 2023-04-05 | 戸田建設株式会社 | 導波管アンテナによる通信システム |
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US8489015B2 (en) | 2013-07-16 |
WO2007035523A3 (en) | 2009-04-16 |
US7606592B2 (en) | 2009-10-20 |
EP2078325B8 (en) | 2013-06-26 |
US8897695B2 (en) | 2014-11-25 |
WO2007035523A8 (en) | 2008-10-16 |
CA2901652A1 (en) | 2007-03-29 |
US20140002211A1 (en) | 2014-01-02 |
EP2078325B1 (en) | 2013-05-15 |
CN101496225A (zh) | 2009-07-29 |
US20120122390A1 (en) | 2012-05-17 |
EP2451009B1 (en) | 2014-07-23 |
US20070063914A1 (en) | 2007-03-22 |
AU2006292515A1 (en) | 2007-03-29 |
EP2078325A2 (en) | 2009-07-15 |
US8078215B2 (en) | 2011-12-13 |
AU2006292515B2 (en) | 2011-09-22 |
CA2622907A1 (en) | 2007-03-29 |
CA2901652C (en) | 2018-05-01 |
ES2514366T3 (es) | 2014-10-28 |
AU2006292515B8 (en) | 2011-10-06 |
EP2078325A4 (en) | 2009-11-04 |
KR20080073286A (ko) | 2008-08-08 |
EP2451009A1 (en) | 2012-05-09 |
US20090325628A1 (en) | 2009-12-31 |
ES2426148T3 (es) | 2013-10-21 |
WO2007035523A2 (en) | 2007-03-29 |
CA2622907C (en) | 2016-05-17 |
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