Design of Tri-Band Microstrip Patch Rectenna for Radio Frequency Energy Harvesting System

Abstract

This paper presents a tri-band patch antenna integrated with a rectifier circuit for radiofrequency energy harvesting systems. This rectenna is more suitable for low power wireless sensors networks with rechargeable battery supplies. The radiating part is the rectangular patch with corrugated edge tapered at one of its sides operating at tri-band in the WLAN and C band. The rectenna is integrated with a radiating patch reducing the overall size of the rectenna without compromising antenna performances. The rectenna is modeled using an Ansoft HFSS simulator and is fabricated on a low-cost FR₄ substrate. The performances of the rectenna are measured in the anechoic chamber and are in good agreement with simulated results. The antenna achieves a −10 dB impedance bandwidth of 100 MHz (2.4–2.5 GHz & 5–5.1 GHz) in the WLAN band in addition to 150 MHz (4–4.15 GHz) in the C band. A DC power output of 298 mV is obtained in the operating bands.

KEYWORDS:

• Antenna radiation patterns
• Microstrip antennas
• Multi-frequency antennas
• Patch antenna
• Rectenna

Additional information

Notes on contributors

Manavalan Saravanan

Manavalan Saravanan was born in Tamilnadu, India in 1989. He completed BE degree with distinction in electronics & communication engineering (ECE) from Anna University Tamilnadu in 2010 and ME in communication systems from Regional Campus- Anna University, Coimbatore, India in 2012. He is pursing his PhD in Dept of ECE, Hindustan University, Tamilnadu. He has 2 years of teaching experience and 4 years of research experience. Her research interests include antenna theory, reconfigurable antennas, microwave and RF circuits. He is a Member of IEEE, and IETE.

Anumuthu Priya

Anumuthu Priya completed BTech degree with distinction in electronics & communication engineering (ECE) from Periyar University, Tamilnadu in 2002 and ME in communication systems from Anna University, India in 2010. She has pursing her PhD in Dept of ECE, BS Abdur Rahman University, Tamilnadu. She is presently working as an assistant professor in ECE Dept, BS Abdur Rahman University, Tamilnadu, India. She has 14 years of teaching experience. Her research interests include antenna theory, reconfigurable antennas, radar systems, microwave and RF circuits, ultrawideband (UWB) antennas. Email: [email protected]