In this work an effective and feasible solution at millimeter-wave for real-time focusing of Frequency Diverse Arrays (FDAs) is proposed, to be exploited for intentional farfield Wireless Power Transfer (WPT) applications. A confined and precise spot to concentrate the power is obtained by a novel 3-D multi-layer wheel-spoke like array of patch antennas, exploiting circular symmetry, directly connected with microstrips through metallized via holes. The system is theoretically developed and numerically demonstrated by the full-wave analysis of the realistic layout of 32-element, wheel-spokearranged FDA with a center frequency of 24 GHz. The simulated results of the realistic layout demonstrate that this solution offers unprecedent capabilities in terms of power focusing and ease of design, with respect to the state-of-the-art. Preliminary measurements of the wheel-spoke transmitter are provided for validation of the adopted feeding technique based on direct connection between microstrips and patches through metallized via hole arranged in circular symmetry
Fazzini E., Costanzo A., Masotti D. (2022). A New Wheel-Spoke Transmitter for Efficient WPT Based on Frequency Diversity [10.23919/EuMC54642.2022.9924401].
A New Wheel-Spoke Transmitter for Efficient WPT Based on Frequency Diversity
Fazzini E.;Costanzo A.;Masotti D.
2022
Abstract
In this work an effective and feasible solution at millimeter-wave for real-time focusing of Frequency Diverse Arrays (FDAs) is proposed, to be exploited for intentional farfield Wireless Power Transfer (WPT) applications. A confined and precise spot to concentrate the power is obtained by a novel 3-D multi-layer wheel-spoke like array of patch antennas, exploiting circular symmetry, directly connected with microstrips through metallized via holes. The system is theoretically developed and numerically demonstrated by the full-wave analysis of the realistic layout of 32-element, wheel-spokearranged FDA with a center frequency of 24 GHz. The simulated results of the realistic layout demonstrate that this solution offers unprecedent capabilities in terms of power focusing and ease of design, with respect to the state-of-the-art. Preliminary measurements of the wheel-spoke transmitter are provided for validation of the adopted feeding technique based on direct connection between microstrips and patches through metallized via hole arranged in circular symmetryI documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
