宇宙太陽発電所SPSは宇宙空間で発電した電力を地上でrn利用するため，無線での電力伝送が必須でありかつキーテクrnノロジーとなる．無線での電力伝送にはICカード等で用いrnられているコイルを用いた電磁誘導方式，電磁波を用いた方rn式，電場もしくは磁場共鳴方式，さらにレーザー光を用いrnた方式等，様々な形式が存在し，棲み分けている．%This paper describes the wireless power transmission via microwave (MPT) system for the Space Solar Power Station/Satellite (SPS). The SPS will be hugest space system and we need high efficient, huge, high accurate, light weight and inexpensive phased array for the SPS. Now we do not have any commercial MPT system on ground. Therefore, we have to consider the roadmap of the MPT system from the ground application to the SPS. We propose three step application of the MPT as follows;rn1st Step: Weak Power Wireless Power Transmission (Ubiquitous Power Source, RF-ID, Energy Harvesting) under Present RadiornWave Configuration or High Power Wireless Power Transmission in Closed Area 2nd Step: High Power Wireless Power Transmission to/from Moving Target/Source with Phased Array under New Radio WavernConfiguration (Special Frequency for WPT) on Ground 3rd (Final) Step: Wireless Power Transmission in Space (SPS)
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