Redefining the Channel Bandwidth for Simultaneous Wireless Power and Information Transfer

Zhou, Yan; Ma, Chongyuan; Zhang, Zijian; Huang, Liang; Hu, Patrick

doi:10.1109/tie.2021.3097669

Cited by 4 publications

(1 citation statement)

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“…The PDM also requires precise control of the impulse timing to apply at the exact zero crossing point, and it requires complex calibration for a specific wireless link condition [10]. In the previous study mentioned in [11], FSK was used, and the data was detected in the harmonic frequency to amplify the frequency difference. However, since this method still uses FSK, it is not possible to maximize PDL.…”

Section: Introductionmentioning

confidence: 99%

Carrier Harmonic Modulation for Simultaneous Wireless Information and Power Transfer

Lim,

Lee

2023

IEEE Access

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This paper presents the carrier harmonic modulation (CHM) for near-field data communication during wireless power transmission. The proposed CHM does not increase the coil dimension, and an additional data driver is not required. Compare to conventional modulation techniques such as frequencyshift keying (FSK) and amplitude-shift keying (ASK), the power delivered to the load (PDL) of CHM is independent of the data transmission. The prototype CHM provides a data rate of 1.1 Mbps while the power carrier frequency is also 1.1 MHz. It achieved a maximum PDL of 641 mW and the system efficiency of 17% with a 30 mm TX/RX coil diameter.

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Section: Introductionmentioning

confidence: 99%