XFdtd

Optimized Antenna Design Using GPU Acceleration and Particle Swarm Optimization

Optimized Antenna Design Using GPU Acceleration and Particle Swarm Optimization

This study considers the example of designing a broadband antenna for an unattended ground sensor using XFdtd. To address the challenge of attaining acceptable performance over both dry and wet ground conditions, we use Particle Swarm Optimization (PSO). XStream GPU Acceleration and MPI + GPU technology make this type of sophisticated simulation strategy possible, completing multiple optimizations with hundreds of generations to converge on the best values.

FDTD Simulation of Thin Resistive Sheets

FDTD Simulation of Thin Resistive Sheets

An effective approach is presented for simulation of thin resistive sheets in FDTD. The approach is based on surface impedance and piecewise linear recursive convolution technique. This approach can be combined with a conformal scheme so that it can be applied to deal with an arbitrarily shaped thin sheet. The simulation results for a couple of examples have shown that the approach is robust, stable and quite accurate.

Fast Estimate of Thermal Responses of Biological Bodies due to RF Exposure

Fast Estimate of Thermal Responses of Biological Bodies due to RF Exposure

A fast approach is proposed for estimating the thermal responses of biological bodies due to RF exposures. The approach is based on ANN models. The results obtained from the fast approach agree well with those calculated directly from the thermal solver. The advantage is that the approach is fast and is not dependent on the biological body and mesh sizes.

Overview of Remcom's Wind Turbine Research and Capabilities

Overview of Remcom's Wind Turbine Research and Capabilities

Wind turbines located near a radar installation can significantly interfere with the ability of the radar to operate properly.  Remcom has performed a number of research efforts into the impact that wind turbines and wind farms have on radar returns for Air Traffic Control (ATC) radar, early warning radar, weather radar, and instrumentation radar.  Highlights of some of these effects and relevant samples and white papers are provided in this brief overview.

High Fidelity RCS Simulation of a Turbine Blade

High Fidelity RCS Simulation of a Turbine Blade

Radar scattering from a turbine’s moving blades can interfere with Doppler radar systems, producing ghost images. Understanding the scattering properties of a blade helps to mitigate any potential issues. This study compares the radar cross section of a metal turbine blade, a hollow fiberglass turbine blade, and a hollow fiberglass turbine blade with a metal spar using XFdtd.

Conformal Antenna Array Design on a Missile Platform - Microwave Journal

Conformal Antenna Array Design on a Missile Platform - Microwave Journal

This application note from the January 2013 issue of Microwave Journal demonstrates the process of adding an electrically steerable, conformal antenna array to the body of a high speed missile. By leveraging XF’s XStream GPU Acceleration, a complex 3D simulation including multiple array elements with curved surfaces that could take several hours was completed within a few minutes.

Waveguide Device Design Using XFdtd

Waveguide Device Design Using XFdtd

Simulation can greatly enhance the design and prototype process when developing new products. This is especially true for the design of waveguide devices, such as a cavity filter, as the engineer can quickly calculate a number of key metrics leading to an optimal configuration. Through optimization via scripting, exceedingly fast processing using a GPU, and waveguide ports, this presentation demonstrates some of XF’s features for the design, optimization, and analysis of waveguide devices.

Conformal Antenna Array Design Using XFdtd Simulation Software

Conformal Antenna Array Design Using XFdtd Simulation Software

Array modeling is a multistep process that often includes several revisions until the design goal is met. The Mobile Base Station Designer in XF’s XTend Script Library helps to speed up this design process. XStreamGPU Acceleration rapidly simulates the array using the actual antenna model to ensure the final design meets the design criteria. This presentation demonstrates how to design a conformal antenna array on a curved surface.

Case Study: Using Electromagnetic Simulation to Ensure EMC Compliance

Case Study: Using Electromagnetic Simulation to Ensure EMC Compliance

KEC, a UK manufacturer of EMC interconnect components and cable harness assemblies, strengthened its market leadership and differentiated itself from the competition by offering a unique technology. Using Remcom’s XFdtd to model and simulate customers’ designs, KEC can identify problems early in the process and recommend corrections before the EMC certification stage. This enables customers to avoid costly mistakes and pass certification testing on the first try.

A Study on the Feasibility of the Deep Brain Stimulation (DBS) Electrode Localization Based on Scalp Electric Potential Recordings

A Study on the Feasibility of the Deep Brain Stimulation (DBS) Electrode Localization Based on Scalp Electric Potential Recordings

In this work, we studied with numerical simulations the principle of extracting the DBS electrical pulse from the patient’s EEG – which normally constitutes an artifact – and localizing the source of the artifact (i.e., the DBS electrodes) using EEG localization methods.

Using Simulation to Optimize Safety, Performance, and Cost Savings When Integrating an Antenna Onto a Platform

Using Simulation to Optimize Safety, Performance, and Cost Savings When Integrating an Antenna Onto a Platform

Successful integration of an antenna onto a vehicle platform poses many challenges.  This paper provides a variety of examples of how modeling and simulation can be used to analyze antenna performance, identify problems, and evaluate potential solutions.

Case Study: How Remcom Consulting Helped ReGear Launch a Deep Tissue Heating Device

Case Study: How Remcom Consulting Helped ReGear Launch a Deep Tissue Heating Device

When ReGear Life Sciences developed a new therapeutic deep heating garment for the shoulder, they needed to validate that the SAR value complied with all applicable FDA and FCC safety regulations before releasing the product to the market. Remcom performed EM simulations, made recommendations on a safer design, and provided the documentation necessary for ReGear to get approval for the product.