RF-to-DC Characteristics of Direct Irradiated On-Chip Gallium Arsenide Schottky Diode and Antenna for Application in Proximity Communication System

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 resist...

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Main Authors: Farahiyah Mustafa, Abdul Manaf Hashim
Format: Article
Language:English
Published: MDPI AG 2014-02-01
Series:Sensors
Subjects:
Online Access:http://www.mdpi.com/1424-8220/14/2/3493
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author Farahiyah Mustafa
Abdul Manaf Hashim
author_facet Farahiyah Mustafa
Abdul Manaf Hashim
author_sort Farahiyah Mustafa
collection DOAJ
description 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.
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spelling doaj.art-b840dc93da18466887a2e36512fd66002022-12-22T02:21:59ZengMDPI AGSensors1424-82202014-02-011423493350510.3390/s140203493s140203493RF-to-DC Characteristics of Direct Irradiated On-Chip Gallium Arsenide Schottky Diode and Antenna for Application in Proximity Communication SystemFarahiyah Mustafa0Abdul Manaf Hashim1Faculty of Electrical Engineering, Universiti Teknologi Malaysia, Skudai, Johor 81310, MalaysiaMalaysia-Japan International Institute of Technology, Universiti Teknologi Malaysia, Jalan Semarak, Kuala Lumpur 54100, MalaysiaWe 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.http://www.mdpi.com/1424-8220/14/2/3493direct integrationSchottky diodedipole antennaproximity communication
spellingShingle Farahiyah Mustafa
Abdul Manaf Hashim
RF-to-DC Characteristics of Direct Irradiated On-Chip Gallium Arsenide Schottky Diode and Antenna for Application in Proximity Communication System
Sensors
direct integration
Schottky diode
dipole antenna
proximity communication
title RF-to-DC Characteristics of Direct Irradiated On-Chip Gallium Arsenide Schottky Diode and Antenna for Application in Proximity Communication System
title_full RF-to-DC Characteristics of Direct Irradiated On-Chip Gallium Arsenide Schottky Diode and Antenna for Application in Proximity Communication System
title_fullStr RF-to-DC Characteristics of Direct Irradiated On-Chip Gallium Arsenide Schottky Diode and Antenna for Application in Proximity Communication System
title_full_unstemmed RF-to-DC Characteristics of Direct Irradiated On-Chip Gallium Arsenide Schottky Diode and Antenna for Application in Proximity Communication System
title_short RF-to-DC Characteristics of Direct Irradiated On-Chip Gallium Arsenide Schottky Diode and Antenna for Application in Proximity Communication System
title_sort rf to dc characteristics of direct irradiated on chip gallium arsenide schottky diode and antenna for application in proximity communication system
topic direct integration
Schottky diode
dipole antenna
proximity communication
url http://www.mdpi.com/1424-8220/14/2/3493
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