Differential Microstrip Antenna for RF Energy Harvesting

Author

Arrawatia, Mahima ; Baghini, Maryam Shojaei ; Kumar, Girish

Author_Institution

Dept. of Electr. Eng., Indian Inst. of Technol. Bombay, Mumbai, India

Volume

63

Issue

4

fYear

2015

fDate

Apr-15

Firstpage

1581

Lastpage

1588

Abstract

A differential microstrip antenna with improved gain for RF energy harvesting is presented in this paper. The developed antenna can be used in either center grounded or differential configuration. The antenna is designed and fabricated for GSM900 band (890-960 MHz). The antenna has a gain of 8.5 dBi at the center frequency and exhibits VSWR ≤ 2 for frequencies between 870 MHz to 1.05 GHz. The efficiency of the antenna is 80%. The developed antenna finds its application in energy harvesting, RFID tags and in wireless communication circuits, where differential inputs/outputs are needed. A complete differential RF energy harvesting system with a peak efficiency of 65.3% for a load of 3 kΩ is also developed.

Keywords

energy harvesting; microstrip antennas; radiofrequency identification; RFID tags; complete differential RF energy harvesting system; differential microstrip antenna; frequency 870 MHz to 1.05 GHz; wireless communication circuits; Antenna measurements; Dipole antennas; Energy harvesting; Impedance; Microstrip antennas; Radio frequency; Differential antenna; RF energy harvesting; impedance matching; improved gain antenna; microstrip antenna;

fLanguage

English

Journal_Title

Antennas and Propagation, IEEE Transactions on

Publisher

ieee

ISSN

0018-926X

Type

jour

DOI

10.1109/TAP.2015.2399939

Filename

7031410