Novel 2-D Beamsteerable Rectenna with Improved Power Receptivity for mm-Wave RF-WPT Applications
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Author
Amir Mohsen Ahmadi Najafabadi; Mohsen Ghorbanpoor; Pratik Vadher; Germán A. Ramírez, Alexander Vorobyov; Pascal Nussbaum
DOI
10.23919/EuCAP63536.2025.10999685
Abstract
This paper introduces a novel 2-D beam-steerable
rectenna designed for mm-wave RF wireless power transfer
(RF-WPT) applications. The 2-D beamsteering capability of
the proposed rectenna is achieved by integrating an on-chip
4 × 4 Butler matrix, which is co-integrated with a rectifier
array in a 22 nm FD-SOI CMOS, and a leaky wave antenna
array. The proposed solution incorporates dual rectifier units
simultaneously to enhance the receiver’s power receptivity. In this
manner, the rectenna is capable of receiving power from the same
direction while taking advantage of frequency diversity. This is
accomplished using the novel integration scheme of the single
leaky wave array antenna with two rectifier units. The proposed
solution maintains the system’s compactness and reduces the
overall cost while offering a fully passive 2-D beam scanning
for the receiver unit. These merits make the proposed solution
promising for RF-WPT applications in the Internet of Things
(IoT) ecosystem.
Publication Reference
2025 19th European Conference on Antennas and Propagation (EuCAP)
Year
2025-03-30