Wireless energy transfer-based transceiver systems for power and/or high-data rate transmission through thick metal walls using sheet-like waveguides

• Published in: Electronics letters Vol. 50; no. 12; pp. 886 - 888
• Main Authors: Oruganti, S.K, Heo, S.H, Ma, H, Bien, F
• Format: Journal Article
• Language: English
• Published: Stevenage The Institution of Engineering and Technology 05.06.2014; Institution of Engineering and Technology; John Wiley & Sons, Inc
• Subjects: Antennas; Applied sciences; bit rate 50 Mbit/s; Circuit properties; cylindrical wave‐cavity receiver; Data transfer (computers); data transfer efficiency; Devices; Electric, optical and optoelectronic circuits; Electronics; Energy transfer; Energy transmission; Evanescent waves; Exact sciences and technology; frequency 25 MHz; high‐data rate transmission; inductive power transmission; magnetic resonance coupling; Metal sheets; metal walls; Microwave circuits, microwave integrated circuits, microwave transmission lines, submillimeter wave circuits; near‐field evanescent; Power electronics, energy conversion and sustainability; Radiocommunications; Receivers; sheet‐like waveguide transmitter; sheet‐like waveguide‐based wireless energy transfer systems; Telecommunications; Telecommunications and information theory; transceivers; transmission efficiency; Walls; waveguides; wireless energy transfer devices; wireless energy transfer‐based transceiver systems; cylindrical wave-cavity receiver; high-data rate transmission; waveguides; wireless energy transfer-based transceiver systems; data transfer efficiency; near-field evanescent; transmission efficiency; wireless energy transfer devices; metal walls; transceivers; receivers; sheet-like waveguide-based wireless energy transfer systems; magnetic resonance coupling; frequency 25 MHz; inductive power transmission; sheet-like waveguide transmitter; bit rate 50 Mbit/s; Near field; Cavity receivers; Magnetic resonance; Shielding; Wall thickness; Waveguide; Microwave power transmission; Transceiver; Magnetic coupling; Thick wall; Wireless network; Transfer function; Evanescent wave
• ISSN: 0013-5194; 1350-911X; 1350-911X
• DOI: 10.1049/el.2014.0507

The potential use of sheet-like waveguide-based wireless energy transfer systems for a two-way power and/or high-data rate transmission–reception through thick metal walls is investigated. The proposed system utilises the near-field evanescent wave concept to transmit energy and/or data. Compared with wireless energy transfer devices based on magnetic resonance coupling, the transmission efficiency of the investigated method is not affected by the shielding offered by metal sheets. For the investigation, a 150 × 150 mm2 sheet-like waveguide transmitter and a cylindrical wave-cavity receiver were designed. The receiver achieved a transfer efficiency of −3.76 dB, while transmitting power through galvanised iron sheets. The prime objective of this investigation was to sustain the power and/or data transfer efficiency despite the variation of the obstructing metal wall thicknesses from 1.5 to 22.5 mm. The proposed system was designed to operate at 25 MHz, enabling 50 Mbit/s data transfer using a function generator.