Title :
A novel dual frequency rectenna for high efficiency wireless power transmission at 2.45 and 5.8 GHz
Author :
Young-Ho Suh ; Kai Chang
Author_Institution :
Dept. of Electr. Eng., Texas A&M Univ., College Station, TX, USA
Abstract :
A dual frequency printed dipole rectenna has been developed at 2.45 and 5.8 GHz: (ISM bands) for the wireless power transmission. For operating at dual band, a new dual frequency uniplanar printed dipole antenna and a novel coplanar stripline (CPS) filter are developed. A device nonlinear analysis is used to select the diode with low junction capacitance to reduce the effect of frequency dependence. The measured conversion efficiencies achieved at free space are 84.4 and. 82.7% at 2.45 and 5.8 GHz, respectively. The measured results agree very well with the theoretical analysis.
Keywords :
Schottky diodes; dipole antennas; frequency response; microstrip antennas; microwave power transmission; multifrequency antennas; passive filters; rectification; solid-state rectifiers; strip line filters; 2.45 GHz; 5.8 GHz; 82.7 percent; 84.4 percent; CPS filter; GaAs; GaAs Schottky barrier diode; ISM bands; conversion efficiencies; coplanar stripline filter; device nonlinear analysis; diode junction capacitance; dual frequency dipole antenna; dual frequency rectenna; high efficiency power transmission; printed dipole rectenna; rectifying diode; uniplanar printed dipole antenna; wireless power transmission; Antenna measurements; Capacitance; Diodes; Dipole antennas; Dual band; Filters; Frequency; Power transmission; Rectennas; Stripline;
Conference_Titel :
Microwave Symposium Digest, 2002 IEEE MTT-S International
Conference_Location :
Seattle, WA, USA
Print_ISBN :
0-7803-7239-5
DOI :
10.1109/MWSYM.2002.1011905
