High-Q Characterization of MW-Band Dielectric Resonator Rectenna Using an Equivalent Circuit

摘要

This paper investigates the voltage amplification phenomenon by deriving equivalent circuit parameters for a coaxial dielectric resonator, where the equivalent circuit parameters are compared with the measured results. Furthermore, experimental studies on improving the radio frequency (RF)–direct current (DC) conversion efficiency using a λ/4-coaxial dielectric resonator with a higher Q factor are presented. The results show that the RF–DC conversion efficiency is improved by 13% at -10 dBm, as compared to that for a conventional dielectric resonator with a lower Q factor.