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In this paper, we proposed a 915 MHz RF power emitter integrated with a 2×2 patch antenna array, four switchable reflection-type phase shifters with I/Q phase output, a harmonic antenna, and a microcontroller Arduino UNO. To achieve auto location identification, we proposed the rechargeable object which will contain a dual-band Yagi-Uda antenna with a diode to rectify the 915 MHz power and to reflect...
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