Design of frequency sensor based on reconfigurable rectenna

Jia Fu Tsai; Jeen Sheen Row

doi:10.1002/mop.28440

Design of frequency sensor based on reconfigurable rectenna

Jia Fu Tsai, Jeen Sheen Row

Department of Electrical Engineering

Research output: Contribution to journal › Article

2 Citations (Scopus)

Abstract

A simple design for solar powered frequency sensors is presented. The design is based on a rectenna composed of a frequency reconfigurable microstrip antenna, a rectifying circuit, and a low pass filter. The operating frequency of the antenna can be tuned in the range between 2 and 2.8 GHz, and, in this frequency range, the rectifier can effectively perform the conversion from RF to DC. By the measured results of the rectenna, the average conversion efficiency within the operating bandwidth of 33% is 73% over a resistive load of 1 kΩ at a power density of about 0.8 mW/cm². A frequency sensor is successfully implemented by integrating the frequency reconfigurable rectenna with a preprogrammed microprocessor powered by solar cells.

Original language	English
Pages (from-to)	1739-1742
Number of pages	4
Journal	Microwave and Optical Technology Letters
Volume	56
Issue number	8
DOIs	https://doi.org/10.1002/mop.28440
Publication status	Published - 2014 Aug

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All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Atomic and Molecular Physics, and Optics
Condensed Matter Physics
Electrical and Electronic Engineering

Cite this

Tsai, J. F., & Row, J. S. (2014). Design of frequency sensor based on reconfigurable rectenna. Microwave and Optical Technology Letters, 56(8), 1739-1742. https://doi.org/10.1002/mop.28440

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Access to Document

10.1002/mop.28440