A novel rectifier circuit operating at dual-frequencies of 1.8 GHz and 2.4 GHz

Author

Long Shen ; Xuexia Yang

Author_Institution

Sch. of Commun. & Inf. Eng., Shanghai Univ., Shanghai, China

fYear

2013

fDate

9-11 Dec. 2013

Firstpage

1

Lastpage

3

Abstract

A dual-frequency microstrip rectifier working at 1.8GHz and 2.4GHz (GSM and ISM bands) is proposed for the rectenna of a wireless power transmission (WPT) system. The diode has different complex impendences at the two operation frequencies under the same input power and load conditions, so a cross-shaped match stub is designed to match the two impedances. The DC-pass filter (DPF), which is composed of three cascade fan shaped stubs, effectively blocks the fundamental frequency and the higher order harmonics generated from the diode. When the input power is 10mW, the simulated RF-DC conversion efficiencies on the 800 Ω load are 77.5% and 75.1% for 1.8GHz and 2.4 GHz operation frequencies, respectively.

Keywords

band-pass filters; biomedical electronics; cellular radio; electric impedance; rectifiers; telemedicine; DC-pass filter; GSM bands; ISM bands; cross-shaped match stub; diode; dual-frequency microstrip rectifier circuit; frequency 1.8 GHz; frequency 2.4 GHz; higher order harmonics generation; impedances; power 10 mW; rectenna; resistance 800 ohm; simulated RF-DC conversion efficiencies; wireless power transmission system; Impedance; Microstrip; Rectennas; Rectifiers; Wireless communication; Wireless sensor networks; dual-frequency; match; rectifier; wireless power transmission;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Workshop Series on RF and Wireless Technologies for Biomedical and Healthcare Applications (IMWS-BIO), 2013 IEEE MTT-S International

Conference_Location

Singapore

Type

conf

DOI

10.1109/IMWS-BIO.2013.6756161

Filename

6756161