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Wireless market, such as cellular systems and wireless LAN, becomes huge and is still expanding. Since operational frequency and transmission bit rate are increasing, much more base stations or access points are necessary to overcome capacity and link budget problems. Most of the places suitable for the base station were already occupied by the existing systems. In the future, sometimes, new base station must be installed at the places where power supply or transmission cable is not available. The proposed repeater system is applicable for such case. The RF signals are fed to the repeater through the air by optical beams. And electrical power is fed by the optical beam, too. This paper describes the design principle and experimental results of the proposed system. For example, by using 26cm diameter optical beam for power transmission, available forward link RF power at the repeater station is 10mW in the case that the distance between the base station and the repeater station is 40 m. If a diameter of the optical beam for power transmission is 48 cm, 100 mW RF output power is available for a forward link. Since micro cell structure will become majority in the future high frequency and high bit rate cellular and wireless LAN systems, these amount of RF output power may be enough for many cases.