Summary
URSI Commission B 2013 International Symposium on Electromagnetic Theory EMTS 2013
2013
Session Number:24AM1B
Session:
Number:24AM1B-01
High Efficiency MW-Band Rectenna Using a Coaxial Dielectric Resonator and Distributed Capacitors
Tomohiro Yamashita, Kazuhiro Honda, Koichi Ogawa,
pp.823-826
Publication Date:2013/5/20
Online ISSN:2188-5079
DOI:10.34385/proc.30.24AM1B-01
Summary:
This paper presents experimental studies on the improvement of RF-DC conversion efficiency of the rectenna using a high Q λ/4-coaxial dielectric resonator and distributed capacitors at 850 MHz. The conventional rectenna using an LC resonator has ohmic and dielectric losses due to a shunt capacitor. In order to eliminate these losses, it is effective to disperse current by using distributed capacitors, such as a film capacitor. To achieve an ultimate efficiency, we have constructed a rectenna using both a coaxial dielectric resonator and a film capacitor. Using the developed rectenna, charge-up experiments to supply power to a super-capacitor at an input power of –10 dBm were performed and its ability to achieve a long-life operation of an LCD clock device was confirmed.