Differential Mode Rectenna Array

Author

Sakamoto, Tatsuya ; Ushijima, Yu ; Nishiyama, Eisuke ; Toyoda, Ichihiko ; Aikawa, Masayoshi

Author_Institution

Grad. Sch. of Sci. & Eng., Saga Univ., Saga, Japan

fYear

2012

fDate

8-14 July 2012

Firstpage

1

Lastpage

2

Abstract

This paper reports “Differential Mode Rectenna Array” for the wireless microwave power transmission. A novel differential mode rectenna unit which has antenna array integrated with a rectifying circuit and feed circuit is proposed. Two differential mode rectenna units are partly overlapped in the rectenna array. The advantages of this differential mode rectenna unit are the excellent design flexibility and size extensibility. If they are connected in series/parallel, higher voltage/more current can be easily obtained. The design frequency is 5.8 GHz in ISM band. In the measurement, the maximum RF-DC conversion efficiency of 47 % is achieved when the load resistance is 220 Ω at the RF power density of 0.021 W/m².

Keywords

antenna feeds; microwave antenna arrays; microwave power transmission; rectennas; rectifying circuits; ISM band; RF power density; RF-DC conversion efficiency; antenna array; differential mode rectenna array; differential mode rectenna unit; feed circuit; frequency 5.8 GHz; load resistance; rectifying circuit; resistance 220 ohm; wireless microwave power transmission; Arrays; Density measurement; Power system measurements; Power transmission; Radio frequency; Rectennas; Wireless communication;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation Society International Symposium (APSURSI), 2012 IEEE

Conference_Location

Chicago, IL

ISSN

1522-3965

Print_ISBN

978-1-4673-0461-0

Type

conf

DOI

10.1109/APS.2012.6348554

Filename

6348554