Karthik Kakaraparty

• Doctoral Degree
• Faculty Member at Florida Polytechnic University

Reverse electrowetting-on-dielectric (REWOD) energy harvesting is an effective energy harvesting method at low frequencies such as the frequencies of human motion. Various REWOD energy harvester designs have been presented in prior works, but these generally use rigid and often expensive substrates and time consuming and/or costly fabrication metho...

A unique method for capturing energy from mechanical electrolyte modulation is known as reverse electrowetting-on-dielectric (REWOD). Prior REWOD studies relied on rigid electrodes which demand a high bias voltage to maximize harvested power, hindering the advancement of self-powered wearable health-monitoring sensors. In addition, the amount of en...

The advancement of wearable ultra-wideband (UWB) antennas for wireless power transmission (WPT) requires a compact antenna design with high gain and wide bandwidth capability. A wearable UWB antenna is fabricated that is intended for wireless power transfer applications. A comparative analysis is presented with respect to the fabricated antenna’s g...

Energy harvesting with the utilization of the reverse electrowetting-on-dielectric (REWOD) phenomenon is a unique method of generating energy by implementing electrolyte impingement using mechanical modulation. The goal of wearable motion sensors that are self-powered has been undermined by the prior REWOD research’s emphasis on planar electrodes,...

This paper presents the design of fully metallic 3D Vivaldi antenna that can be used for wireless power transmission applications. The 3D antenna consists of 1) a tapered profile, 2) a rectangular cavity, and 3) a horizontal slot cut that is used as a transition between the cavity and the tapered profile. The proposed antenna design is fabricated u...

Electrocardiogram (ECG) is widely used by physicians to detect heart ailments. The multi-resolution analysis offered by the Discrete Wavelet Transform (DWT) coupled with its noise-removal capability makes it a suitable tool for ECG signal analysis. In this paper, a DWT-based approach is presented for ECG signal decomposition and noise removal. The...

Novel dry electrodes are increasingly evolving for monitoring electrocardiograms compared to the widely used Ag/AgCl (wet) electrodes as there is no skin preparation or wet gel needed. Many fabricated dry electrodes are however opaque, and the problem of skin irritation and rashes continue to pose a concern. In this paper, an optically unobtrusiv...

Reverse electrowetting‐on‐dielectric (REWOD)‐based energy harvesting has been studied over the last decade as a novel technique of harvesting energy by actuating liquid droplet(s) utilizing applied mechanical modulation. Much prior research in REWOD has relied on planar electrodes, which by its geometry possess a limited surface area. In addition,...