Design of frequency sensor based on reconfigurable rectenna

Jia Fu Tsai, Jeen-Sheen Row

Research output: Contribution to journalArticle

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 languageEnglish
Pages (from-to)1739-1742
Number of pages4
JournalMicrowave and Optical Technology Letters
Volume56
Issue number8
DOIs
Publication statusPublished - 2014 Jan 1

Fingerprint

Rectifying circuits
sensors
Sensors
Low pass filters
Microstrip antennas
Conversion efficiency
Microprocessor chips
Solar cells
Antennas
Bandwidth
low pass filters
microstrip antennas
rectifiers
microprocessors
radiant flux density
antennas
solar cells
frequency ranges
direct current
bandwidth

All Science Journal Classification (ASJC) codes

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

Cite this

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Design of frequency sensor based on reconfigurable rectenna. / Tsai, Jia Fu; Row, Jeen-Sheen.

In: Microwave and Optical Technology Letters, Vol. 56, No. 8, 01.01.2014, p. 1739-1742.

Research output: Contribution to journalArticle

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