Quantum

Finite-Element Electromagnetic Analysis and Evaluation of Antenna Performance Metrics Using a Quantum Linear System Solver

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Briefings

A new hybrid quantum-classical workflow combines finite-element electromagnetic analysis with quantum linear system solvers to evaluate antenna performance metrics. The method calculates total radiated power and dissipated power as observables from a quantum solution state, avoiding the cost of reconstructing the full classical output. Numerical experiments on an axisymmetric coaxially fed monopole antenna showed relative errors of approximately 10^-3 compared to classical solutions under idealized conditions.

Key points

• The workflow combines finite-element electromagnetic analysis with a quantum linear system solver to evaluate antenna performance metrics.
• Quantum observables (total radiated power, dissipated power) are calculated from the quantum solution state without reconstructing the full classical output vector.

Context

This research addresses computational bottlenecks in high-frequency antenna design where mesh refinement and sparse linear system solving are major cost drivers. By leveraging fault-tolerant quantum computers, the study aims to accelerate electromagnetic analysis for wireless device design.

Limitations

Validation was limited to numerical experiments on an axisymmetric coaxially fed monopole antenna under idealized conditions. The study does not provide experimental data, nor does it account for real-world fabrication tolerances or environmental factors affecting antenna performance.

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