Updated Application Note: Cassegrain Antennas with Diameters Up to 300 λ

We have published an updated application note on Cassegrain antenna simulation using WIPL-D software, covering electrically large reflector antennas with diameters up to 300 λ.

The original study, published in 2018, demonstrated efficient full-wave simulations of Cassegrain antennas with reflector diameters up to 200 λ. The new version extends the analysis to reflector diameters up to 300 λ and highlights the capabilities of the latest WIPL-D solver technology combined with modern GPU acceleration.

The updated application note includes:

• simulations of reflector antennas from 50 λ to 300 λ,
• computational statistics and simulation times,
• GPU-accelerated matrix inversion using WIPL-D GPU Solver,
• out-of-core simulations for extremely large EM problems,
• radiation pattern comparisons for electrically very large reflector antennas.

The simulations were performed on a modern workstation equipped with an Intel® Core™ i9-14900K processor and NVIDIA® GeForce RTX™ 4090 GPU.

This updated study further demonstrates that WIPL-D software can efficiently solve electrically very large reflector antenna problems using accurate Method-of-Moments technology with higher-order basis functions and commercially available hardware. For engineers working on Cassegrain antenna simulation, this makes WIPL-D a practical solution for both research and commercial antenna design.

Section: Reflector Antenna

Download the updated application note: 2026 PDF.

For reference, the original 2018 version remains available in our archive: link to archived 2018 pdf.