REPEATERS FOR ENHANCEMENT OF WIRELESS POWER TRANSFER

PROBLEM TO BE SOLVED: To provide a wireless charging arrangement that accommodates flexible placement and orientation of transmit and receive antennas.SOLUTION: A wireless power transfer system includes a transmit circuit with a transmit antenna 710C driven from a power amplifier to generate a near...

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Hauptverfasser:	OZAKI ERNEST T, MOHAMMADIAN ALIREZA HORMOZ, MATTHEW S GROB
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	ANTENNAS, i.e. RADIO AERIALS BASIC ELECTRIC ELEMENTS CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY GENERATION SYSTEMS FOR STORING ELECTRIC ENERGY TELEPHONIC COMMUNICATION
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a wireless charging arrangement that accommodates flexible placement and orientation of transmit and receive antennas.SOLUTION: A wireless power transfer system includes a transmit circuit with a transmit antenna 710C driven from a power amplifier to generate a near field radiation at a resonant frequency within a first coupling mode region surrounding the transmit antenna. One or more repeater antennas 720C are disposed at different locations within the first coupling mode region. Each repeater antenna generates an enhanced near field radiation at the resonant frequency within a coupling mode region corresponding to that repeater antenna. One or more receive circuits including a receive antenna 730C receive power when disposed in one of the coupling mode regions corresponding to that repeater antenna.SELECTED DRAWING: Figure 18A 【課題】送信アンテナと受信アンテナとの柔軟な配置および配向に適応するワイヤレス充電構成を提供する。【解決手段】ワイヤレス電力伝達システムは、送信アンテナを囲む第１の結合モード領域内で共振周波数において近距離場放射を発生させるために電力増幅器から励振される送信アンテナ７１０Ｃをもつ送信回路を含む。１つまたは複数のリピータアンテナ７２０Ｃが第１の結合モード領域内の異なるロケーションに配設される。各リピータアンテナは、そのリピータアンテナに対応する結合モード領域内で共振周波数において強調近距離場放射を発生させる。受信アンテナ７３０Ｃを含む１つまたは複数の受信回路が、そのリピータアンテナに対応する結合モード領域のうちの１つの中に配設されたとき、電力を受信する。【選択図】図１８Ａ