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- Title
RF-to-DC Characteristics of Direct Irradiated On-Chip Gallium Arsenide Schottky Diode and Antenna for Application in Proximity Communication System.
- Authors
Mustafa, Farahiyah; Abdul Manaf Hashim
- Abstract
We report the RF-to-DC characteristics of the integrated AlGaAs/GaAs Schottky diode and antenna under the direct injection and irradiation condition. The conversion efficiency up to 80% under direct injection of 1 GHz signal to the diode was achieved. It was found that the reduction of series resistance and parallel connection of diode and load tend to lead to the improvement of RF-to-DC conversion efficiency. Under direct irradiation from antenna-to-antenna method, the output voltage of 35 mV was still obtainable for the distance of 8 cm between both antennas in spite of large mismatch in the resonant frequency between the diode and the connected antenna. Higher output voltage in volt range is expected to be achievable for the well-matching condition. The proposed on-chip AlGaAs/GaAs HEMT Schottky diode and antenna seems to be a promising candidate to be used for application in proximity communication system as a wireless low power source as well as a highly sensitive RF detector.
- Subjects
SCHOTTKY barrier diodes; SEMICONDUCTOR-metal boundaries; SCHOTTKY barrier; SCHOTTKY effect; HIGH field effects (Electric fields)
- Publication
Sensors (14248220), 2014, Vol 14, Issue 2, p3493
- ISSN
1424-8220
- Publication type
Article
- DOI
10.3390/s140203493