Abstract
Abstract This paper presents a patch antenna array topology for Simultaneous Wireless Information and Power Transfer (SWIPT) applications. The resulting Double Patch Antenna Array (DPA) is composed of two patch antennas operating at different frequencies and fabricated on a unique substrate. One of the patches operates at the 1.8 GHz mobile communication band and is used for wireless communication, while the other one operates at the 2.4 GHz Industrial, Scientific, and Medical (ISM) band, and is used for Radio Frequency Energy Harvesting (RFEH). The analyzes and measurements carried out have shown that the adopted topology has satisfactory performance for communication, with a gain of 1.5 dBi, and for out-of-band energy harvesting, with a Vout of 160 mV at 2.45 GHz. These results indicate this approach as a promising strategy for low-power wireless applications.
Highlights
Wireless communication is a global trend and its use has connected a large number of devices, which are expected to surpass hundreds of billions soon [1], [2]
The rectenna, which is the connection of an antenna and a RF rectifier, can use several antenna designs, and among them, the microstrip patch antenna has been widely used due to its good constructive characteristics and performance [11]
Since the simulation results are in agreement with the primary specifications, the Double Patch Antenna Array (DPA) prototype, presented in Fig. 4, was fabricated on the low-cost FR4 substrate
Summary
Wireless communication is a global trend and its use has connected a large number of devices, which are expected to surpass hundreds of billions soon [1], [2]. The advantages of this SWIPT approach are to avoid selfinterference of dedicated sources and competition for the same RF carrier, reusing RF energy from different RF sources on the environment [10] To use this strategy, the rectenna, which is the connection of an antenna and a RF rectifier, can use several antenna designs, and among them, the microstrip patch antenna has been widely used due to its good constructive characteristics (simplicity, small dimensions, and easy fabrication) and performance (resonance frequency, polarization, and radiation pattern) [11]. Since the simulation results are in agreement with the primary specifications, the DPA prototype, presented in Fig. 4, was fabricated on the low-cost FR4 substrate
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