Design of a 377 Ω patch antenna for ambient RF energy harvesting at downlink frequency of GSM 900

Author

Devi, K. Avuri K A ; Sadasivam, S. ; Din, Norashidah Md ; Chakrabarthy, C.K.

Author_Institution

Electr. & Electron. Eng. Dept., INTI Int. Univ., Nilai, Malaysia

fYear

2011

fDate

2-5 Oct. 2011

Firstpage

492

Lastpage

495

Abstract

A novel 377 Ω patch antenna operating at GSM 900 downlink band for RF energy harvesting is proposed and analyzed in this paper. The designed antenna consists of a normal patch with two steps incorporated at the appropriate position to enhance its bandwidth. The antenna is designed and tested in Agilent advance design systems ADS environment and constructed on a FR4 substrate. The antenna yields an impedance bandwidth of 34.35% (325 MHz) at 946 MHz centre frequency with a return loss S₁₁ of -29.22dB and gain of 5.2 dBi. The proposed patch antenna is suitable for ambient RF energy harvesting at downlink frequency band of GSM 900 as demonstrated by simulation and experimental results. The measured results closely agree with the simulated results.

Keywords

cellular radio; energy harvesting; microstrip antennas; mobile antennas; Agilent advance design systems ADS environment; FR4 substrate; GSM 900 downlink band; ambient RF energy harvesting; bandwidth 325 MHz; downlink frequency; frequency 946 MHz; impedance bandwidth; patch antenna; Antenna measurements; Bandwidth; Downlink; GSM; Impedance; Patch antennas; ADS; Index terms: GSM 900; Stepped patch antenna; impedance bandwidth; return loss;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications (APCC), 2011 17th Asia-Pacific Conference on

Conference_Location

Sabah

Print_ISBN

978-1-4577-0389-8

Type

conf

DOI

10.1109/APCC.2011.6152859

Filename

6152859