Abstract
Design and characterization of a W-band rectenna, consisting of a 2 × 2 patch sub-array integrated with matching elements and rectifying circuitry is presented. The key element of the rectenna is a Mott diode that has permitted considerable improvement of RF-to-DC conversion efficiency in comparison with commercially available GaAs mm-wave diodes. The experimental setup was equipped by two focusing lenses, allowing a concentration of RF power within the beam spot of a 1 cm diameter at a distance of 1 m. The tuneable W-band source delivering 0.4 W RF CW power was employed to perform large-signal experiments and to measure load characteristics of the rectenna. The measured RF-to-DC conversion efficiency with the single Mott diode is approximately 17%, which is approximately 5 times higher than the commercial counterpart (Microsemi).
Original language | English |
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Article number | 7517354 |
Pages (from-to) | 637-639 |
Number of pages | 3 |
Journal | IEEE Microwave and Wireless Components Letters |
Volume | 26 |
Issue number | 8 |
DOIs | |
State | Published - Aug 2016 |
Keywords
- High frequency rectification
- Mott diode
- RF-to-DC conversion
- load characteristics
- rectenna