Title :
High efficiency C-band 1000 element rectenna array for microwave powered applications
Author :
Bharj, S.S. ; Camisa, R. ; Grober, S. ; Wozniak, F. ; Pendleton, E.
Author_Institution :
David Sarnoff Res. Center, Princeton, NJ, USA
Abstract :
A highly efficient rectenna array, at 5.87 GHz, comprising 1000 dipole elements has been designed, developed, and demonstrated for microwave powered applications. The rectenna dipole elements exhibits an RF-to-DC efficiency exceeding 80% with a uniform illuminated aperture. The rectification element consists of a custom-packaged silicon Schottky diode quad bridge with a high reverse breakdown voltage. The novel mechanical structure of the low-cost rectenna consists of a dipole array substrate and a busbar substrate suitably assembled to ensure diode cooling through conduction and convection.<>
Keywords :
Schottky-barrier diodes; antenna arrays; cooling; microstrip antennas; rectifying circuits; solid-state microwave circuits; solid-state rectifiers; 1000 element rectenna array; 5.87 GHz; 80 percent; C-band; RF-to-DC efficiency; SHF; Schottky diode quad bridge; Si diodes; busbar substrate; custom-packaged; diode cooling; dipole array substrate; dipole elements; low-cost rectenna; mechanical structure; microwave powered applications; rectification element; reverse breakdown voltage; uniform illuminated aperture; Apertures; Bridges; Costs; Frequency; Gallium arsenide; Microstrip; Microwave antenna arrays; Rectennas; Schottky diodes; Silicon;
Conference_Titel :
Microwave Symposium Digest, 1992., IEEE MTT-S International
Conference_Location :
Albuquerque, NM, USA
Print_ISBN :
0-7803-0611-2
DOI :
10.1109/MWSYM.1992.187972
