Rectenna performance under power-optimized waveform excitation

Author

Valenta, Christopher R. ; Durgin, G.D.

Author_Institution

Sch. of Electr. & Comput. Eng., Georgia Inst. of Technol., Atlanta, GA, USA

fYear

2013

fDate

April 30 2013-May 2 2013

Firstpage

237

Lastpage

244

Abstract

Power-optimized waveforms (POWs) have been shown to increase the power-conversion efficiency in energy harvesting circuits. This paper is the first attempt to study the effects of a POW on these circuits and determine how its design can affect circuit performance. As an example, a 5.8 GHz single-shunt rectenna was designed to investigate the variation of POW parameters. It was shown that there is an optimal range of subcarrier spacing to maximize POW gain and minimize voltage ripple. Furthermore, a relationship between the maximum number of equal energy subcarriers, ripple voltage, and circuit parameters has been determined.

Keywords

energy harvesting; microwave antennas; rectennas; POW gain maximization; POW parameters; circuit parameters; circuit performance; energy harvesting circuits; equal energy subcarriers; frequency 5.8 GHz; power-conversion efficiency; power-optimized waveform excitation; ripple voltage; single-shunt rectenna performance; subcarrier spacing; voltage ripple minimization; Energy harvesting; Impedance; Peak to average power ratio; Radio frequency; Radiofrequency identification; Rectennas; Schottky diodes;

fLanguage

English

Publisher

ieee

Conference_Titel

RFID (RFID), 2013 IEEE International Conference on

Conference_Location

Penang

Print_ISBN

978-1-4673-5748-7

Electronic_ISBN

978-1-4673-5749-4

Type

conf

DOI

10.1109/RFID.2013.6548160

Filename

6548160