An Efficient 2.45 GHz Spiral Rectenna Without a Matching Circuit for RF Energy Harvesting

This paper presents an efficient spiral rectenna to be used for radio frequency energy harvesting application. This rectenna is simple, low cost and an efficient design exhibiting a power conversion efficiency of 85-88% at different conditions. The unique feature of the proposed model is, it eliminates the need for an external matching circuit thus reducing the complexity of the design, cost and is compact. Also, it has been analyzed that this rectenna exhibits good performance at different load conditions, input power levels and with different models of schottky diodes.

Automated summary

The efficient spiral rectenna presented in this paper is simple, low cost, and exhibits a high power conversion efficiency of 85-88% under different conditions. Its unique feature of eliminating the need for an external matching circuit reduces complexity, cost, and size. Additionally, this rectenna performs well under different load conditions, input power levels, and with various models of schottky diodes.