Automatic Antenna Orientation Using the Algorithm Compatible With the Wireless Energy Harvesting System

Abstract

In wireless telecommunication systems, the precise adjustment of the antenna direction has a direct effect on the quality of the received signal. In this article, a new routing algorithm is designed using the wireless energy harvesting (WEH) technology from electromagnetic waves to adjust the orientation of the receiver antenna. The algorithm is simulated for routing in TDD LTE cellular network at 2.35 GHz frequency. The proposed antenna in this article is a cross-dipole type with dual-polarization RHCP and LHCP, and its measured impedance bandwidths are 1.97–2.70 GHz at Port 1 and 1.96–2.72 GHz at Port 2. Also, 7.45 dBic peak gain and end-fire radiation capability of the proposed antenna are among the advantages of the automatic routing system. The proposed rectifier for WEH uses the voltage doubler technique. A new construction of microstrip elements has been used for the impedance matching network (IMN). The fabricated rectifier at 2.35 GHz can provide PCE = 52.8% at −0.5 dBm input power, which is suitable for WEH.