Title :
Design considerations for low-power, high-sensitivity rectennas
Author :
Visser, Hubregt J.
Author_Institution :
Holst Centre, IMEC, Eindhoven, Netherlands
Abstract :
Through analysis it is found that the only steps available to maximize the voltage at the input of a rectifying and voltage multiplication circuit for a given low level of power available from the antenna are: Design the rectifier/multiplier circuit for a minimum real part of the input admittance and conjugate match the antenna to the rectifier/multiplier circuit. Use antenna miniaturization up to a level that still yields an acceptable radiation efficiency and start from a small loop antenna.
Keywords :
antenna radiation patterns; loop antennas; rectennas; rectifying circuits; voltage multipliers; antenna miniaturization; antenna radiation efficiency; input admittance; low-power high-sensitivity rectenna design; rectifying circuit; small loop antenna; voltage multiplication circuit; Antennas; Impedance; Impedance matching; Radio frequency; Rectifying circuits; Schottky diodes; antenna; energy harvesting; rectenna; rectifier;
Conference_Titel :
Antennas and Propagation (EuCAP), 2014 8th European Conference on
Conference_Location :
The Hague
DOI :
10.1109/EuCAP.2014.6902448
