TV波用レクテナの設計に関する基礎検討

三池 淳平; 藤本 孝文; 久富 大輝; 石塚 洋一; 藤島 友之; 杉本 知史

doi:10.11485/itetr.41.11.0_5

41.11 Broadcasting and Communication Technologies(BCT)

Session ID : BCT2017-40

DOI https://doi.org/10.11485/itetr.41.11.0_5

Conference information

Host: Broadcasting and Communication Technologies(BCT)

Name : Broadcasting and Communication Technologies(BCT)

Date : March 10, 2017

Basic Study on Rectenna for TV Broadcast Wave Energy Harvesting

*Jumpei MIIKE, Takafumi FUJIMOTO, Daiki HISATOMI, Yoichi ISHIZUKA, Tomoyuki FUJISHIMA, Satoshi SUGIMOTO

Author information

Keywords: Wireless sensor network, Rectenna, Rectifier, Matching circuit, Input impedance, Output voltage

CONFERENCE PROCEEDINGS FREE ACCESS

Details

Abstract

A rectenna for TV broadcast wave energy harvesting is investigated for wireless sensor network. Generally, rectenna is composed of an antenna and a rectifier. Input impedance of the designed rectifier is 314 + j0Ω. Since output impedance of an antenna is a 50Ω, matching circuit is necessary between an antenna and a rectifier. Matching circuit is downsized by a crank-shaped microstrip line and an L-shaped shorted stub. The prototype rectenna is directly connected to the output terminal of the high-frequency oscillator, and the input and output voltage are compared using an oscilloscope.

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