Pan Lu, Eddie Wadbro
Dual-polarized (DP) microstrip antennas are utilized in wireless systems for efficient data transmission; however, their bandwidth is typically very limited. This study proposes a design for DP microstrip antennas with enhanced bandwidth using a density-based topology optimization approach. We formulate an optimization problem that addresses feeding port matching, port isolation, and far-field dual-polarized performance simultaneously. To achieve improved bandwidth, we utilize an FR4 stack-up in which the copper on two layers is optimized concurrently. We present two antenna designs operating around 5.7 GHz, demonstrating a performance compromise between high isolation (exceeding 40 dB) and enhanced impedance bandwidth (approximately 10%). The experimental validation of the optimized designs shows excellent agreement between simulated and measured performance, underscoring the efficacy of our approach.
@article{ebfa53d9-25d0-4473-aa10-63ba9b236f7e,
title={Multilayer Dual-polarized Microstrip Antenna Design by Topology Optimization with Enhanced Bandwidth},
author={Pan Lu and Eddie Wadbro},
year={2026},
language={en}
}TY - JOUR TI - Multilayer Dual-polarized Microstrip Antenna Design by Topology Optimization with Enhanced Bandwidth AU - Pan Lu AU - Eddie Wadbro PY - 2026 LA - en ER -
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