Abstract
A phased array with 1.5kW microwave output power has been developed and tested. Mitsubishi Electric Corporation and Kyoto University jointly developed this for the purpose of basic experiments of high accurate microwave power transmission. To realize this purpose, REV method as a calibration system of the complex electric field of an antenna element and software retro-directive system as a power receiving section tracking system is employed in the phased array. It has been found from measurements of radiation performance that a measured radiation pattern is in good agreement with a simulated result and beam steering accuracy less than 0.1 degrees, corresponding to about fortieth of the beamwidth, is obtained due to REV method. Furthermore, a power receiving section tracking accuracy less than 0.4degrees rms (root mean square) is obtained due to software retro-directive system.
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