Antenna arrays Archives - IEEE Transactions on Quantum Engineering

A Quantum Variational Approach to Phase-Only Pattern Synthesis

Abstract: Phase-only pattern synthesis is a long-standing and hard to solve problem in antenna engineering. Due to its nonlinear nature, this kind of optimization problem is classically approached with iterative algorithms, where the convergence time depends on the problem topology. Often these heuristic solution routines get stuck in local optima and yield suboptimal results. This […]

Two-Dimensional Beam Selection by Multiarmed Bandit Algorithm Based on a Quantum Walk

March 26, 2025Maki Arai, Tomoki Yamagami, Takatomo Mihana, Ryoichi Horisaki, Mikio HasegawaQuantum ComputingAntenna arrays, Antenna radiation patterns, Array signal processing, Channel capacity, Complexity theory, Location awareness, Massive MIMO, Probability distribution, Quantum computing, Training

Abstract: This article proposes a novel beam selection method using a multiarmed bandit (MAB) algorithm based on a quantum walk (QW) principle, aimed at improving system performance. A massive multiple-input multiple-output system, employing multiple high-gain beams within a high-frequency band, is indispensable for achieving large capacity in future wireless communications. However, as the number of […]