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RF-to-DC direct power conversion of ALGaAs/GaAs schottky diode for on-chip rectenna device application in nanosystems

Abd Rahman, Shaharin Fadzli and Hashim, Abdul Manaf and Ab Rahman, Ab Rahim and F., Mustafa and N., Parimon and M. N., Osman (2010) RF-to-DC direct power conversion of ALGaAs/GaAs schottky diode for on-chip rectenna device application in nanosystems. Journal of Applied Sciences, 10 (18). 2041 - 2046. ISSN 1812-5654

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Official URL: http://scialert.net/abstract/?doi=jas.2010.2041.20...

Abstract

The Schottky diodes enjoined with coplanar waveguides are investigated for applications in on-chip rectenna device application without insertion of a matching circuit. The design, fabrication, DC characteristics and RF-to-DC conversion of the AlGaAs/GaAs HEMT Schottky diode is presented. The RF signals are well converted by the fabricated Schottky diodes with cut-off frequency up to 25 GHz estimated in direct injection experiments. The mW output power can be achieved by optimizing the material structure and ohmic metals so that lower series resistance is realized. Proper circuitry also should lead to maximum power conversion, for example the ground lines of the system are connected to the same point. Direct integration of the planar dipole antenna to the Schottky diode via coplanar waveguide transmission line may allow omission of any matching impedance circuit. The outcomes of these results provide conduit for breakthrough designs for ultra-low power on-chip rectenna device technology to be integrated in nanosystems.

Item Type:Article
Uncontrolled Keywords:rectenna, coplanar waveguide, AiGaAs/GaAs, HEMT, schottky diode, nanosystem
Subjects:T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions:Electrical Engineering
ID Code:26552
Deposited By: Liza Porijo
Deposited On:18 Jul 2012 01:55
Last Modified:06 Aug 2012 02:29

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