Enhancement of wireless power transmission by using novel multitone approaches for wireless recharging

Chin Lung Yang, Chi Lin Tsai, Yu Lin Yang, Chieh Sen Lee

Research output: Contribution to journalArticlepeer-review

12 Citations (Scopus)

Abstract

This letter presents novel multitone wireless power transmission (WPT) approaches to enhance the induced voltages for wireless recharging. Effectiveness of the proposed approaches is demonstrated by using a dual-band (1.83/3.36 GHz) antenna of only 0.018 λ 2 in size. Power conversion efficiency (PCE) represents a major challenge for WPT, especially at low input power levels. Our results indicate that PCE is related to the distributions and the combinations of input power spectrum. Therefore, a novel multitone powering system is developed to achieve a high output voltage. Experimental results indicate that the induced voltage can increase by 3.8 times over that of multitone WPT. Furthermore, wireless multitone powering can produce a 1.92-V output, i.e., an improvement of 14%, with a small average power of-5.3 dBm at 1.83 GHz.

Original languageEnglish
Article number6084701
Pages (from-to)1353-1357
Number of pages5
JournalIEEE Antennas and Wireless Propagation Letters
Volume10
DOIs
Publication statusPublished - 2011

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering

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