Summary
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Data Transmission Using Original Coils in Resonant Wireless Power Transmission Takashi MARUYAMA Tatsuya SHIMIZU Mamoru AKIMOTO Kazuki MARUTA Publication IEICE TRANSACTIONS on Communications Vol.E94-B No.11 pp.3172-3174 Publication Date: 2011/11/01 Online ISSN: 1745-1345 DOI: 10.1587/transcom.E94.B.3172 Print ISSN: 0916-8516 Type of Manuscript: LETTER Category: Wireless Communication Technologies Keyword: resonant wireless power transmission, data transmission, load modulation, equivalent circuit, Full Text: PDF>>
Summary: We propose a data transmission method for resonant wireless power transmission systems. In order to transmit data, we use the coils originally designed for power transmission, no additional antennas are required. We focus on uplink data transmission and adopt the load modulation technique. This configuration yields mid-range data transmission without transmitting power. In addition, the proposal enables simultaneous power feeding and uplink data transmission. We make a prototype demonstrating resonant wireless power transmission and measure its S-parameter under some load conditions. The results confirm the potential of load modulation in supporting uplink data transmission. Additionally, the results are elucidated by analyzing an equivalent circuit. Measured S-parameter and equivalent circuit response are found to be similar. | |||||
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