5.8-GHz planar hybrid rectenna for wireless powered applications

Author

Furukawa, Minoru ; Takahashi, Yoshiro ; Fujiwara, Teruo ; Mihara, Shoichiro ; Saito, Takashi ; Kobayashi, Yutaro ; Kawasaki, Shigeo ; Shinohara, Naoki ; Fujino, Yoshiyuki ; Tanaka, Kouji ; Sasaki, Susumu

Author_Institution

Nihon Dengyo Kousaku Co.Ltd., Saitama

fYear

2006

fDate

12-15 Dec. 2006

Firstpage

1611

Lastpage

1614

Abstract

This paper presents a high-efficiency low-reradiation planar rectifying antenna (rectenna). The rectenna is composed of a high-gain cavity-backed circular patch antenna using novel coplanar feeding structure and a low-profile microstrip rectifying circuit. The cavity-backed antenna achieved the gain of 9.17dBi and the -20dB return loss bandwidth of approximately 1.4%. The rectifying circuit has a harmonics filter that suppresses the reradiated harmonics under -59 dBc. The RF-to-dc conversion efficiency of the rectenna element was measured as 71.4% with a 266mW input power. Over 13W DC output power was demonstrated using the 52- element triangular array.

Keywords

antenna feeds; microstrip antennas; microwave antennas; rectennas; rectifying circuits; cavity-backed antenna; circular patch antenna; coplanar feeding structure; frequency 5.8 GHz; harmonics filter; low-profile microstrip rectifying circuit; planar hybrid rectenna; rectifying antenna; wireless powered applications; Antenna measurements; Bandwidth; Harmonic filters; Microstrip antennas; Patch antennas; Power generation; Power harmonic filters; Power measurement; Rectennas; Rectifying circuits; Microwave power transmission; cavity-backed patch antenna; harmonics; rectenna; robot;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Conference, 2006. APMC 2006. Asia-Pacific

Conference_Location

Yokohama

Print_ISBN

978-4-902339-08-6

Electronic_ISBN

978-4-902339-11-6

Type

conf

DOI

10.1109/APMC.2006.4429715

Filename

4429715