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Battery exchange cost or the battery itself of sensor terminals is a serious problem to construct a wireless sensor network. The objective of the present study is to develop a ZigBee sensor network powered by external microwave in order to realize a battery-less or wirelessly-charged wireless sensor network. Our designed microwave power receiving system consists of a power receiving antenna, a rectification...
A wireless power distribution system (WPDS) in buildings is proposed as the application of a microwave power transmission (MPT). Problems against a commercial MPT system, which are frequency regulation and shortage of technically and economically effective application, can be solved with the WPDS in buildings. The microwave propagates in the deck plate waveguide. Total cost of the building can be...
The accuracy of the microwave (MW) power beam steering is one of the most critical goals for Solar Power Satellite (SPS). Retrodirective beam control system is the proposed method of beam steering technique for SPS. Detection of precise Direction of Arrival (DOA) of the pilot signal in SPS system is an integral part of the retro directive beam steering. High precision DOA estimation methods like MUltiple...
Solar power satellite (SPS) is one option for meeting the huge future energy demand as the Earth will require sustainable electricity sources equivalent to 3 to 5 times the commercial power presently produced by 2050. One of the critical goals of SPS is to maintain highest beam efficiency (BE) because the microwaves (MW) from SPS will be converted to utility power unlike the MW from communication...
Converters that change DC power to microwave power are applied in various industries. Such converters can be categorized as magnetrons, traveling wave tubes (TWTs), and semiconductor converters. The magnetron has merits of high power and small size. The magnetron, as depicted in figure 1, can be a high- power transmitter for a space satellite, since the magnetron is a low-cost device and that is in...
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