Spatially Modulated Communication Method Using Dual Scatterers Embedded with Lumped Elements for Wireless Power Transmission

Akira SAITOU  Kohei HASEGAWA  Ryo ISHIKAWA  Kazuhiko HONJO  

Publication
IEICE TRANSACTIONS on Communications   Vol.E96-B   No.10   pp.2425-2430
Publication Date: 2013/10/01
Online ISSN: 1745-1345
DOI: 10.1587/transcom.E96.B.2425
Print ISSN: 0916-8516
Type of Manuscript: Special Section PAPER (Special Section on Recent Progress in Antennas and Propagation in Conjunction with Main Topics of ISAP2012)
Category: Antennas
Keyword: 
wireless power transmission,  scatterer,  lumped element,  modulation factor,  mutual impedance,  

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Summary: 
A novel spatially modulated communication method, appropriate for wireless power transmission applications at 5.8GHz, is proposed using dual scatterers embedded with lumped elements. Analytical expression for the received wave in the spatial modulation is derived, and the characteristics are verified with simulation and measurement by varying the embedded capacitor. The maximum measured variation of the received voltage is more than 15dB and that of the phase is more than 270 degrees at 5.8GHz. The estimated amplitude modulation factor is more than 70%. Using the data obtained, we estimate the practical received waveforms modulated by the applied voltage to a varactor for the amplitude modulation scheme.