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We have studied a high impedance antenna in order to improve the rectifier efficiency for energy harvesting applications. Folded dipole antenna (FDA) with high impedance of over 10 kΩ is proposed. To obtain higher impedance stepup ratio compared with the conventional FDA, an FDA consisting with three strip conductors is investigated. Impedance stepup ratio is calculated and the results in theory,...
A high-impedance wideband folded dipole antenna (FDA) has been designed for energy harvesting applications. High impedance is necessary for producing high efficiency rectennas. An impedance of over 300 Ω can be achieved by FDAs due to the impedance step-up function. The wideband design is introduced theoretically using an equivalent circuit for the FDA. A bandwidth over 20% with a characteristic impedance...
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