Full wave matching circuit optimization (FW-MCO) is a new technology that combines full wave, 3D EM simulation with circuit optimization into a novel approach for solving an age-old RF problem: determining which component values provide the desired match for a given matching network layout. This article describes the design process using the design of a matching circuit for a GPS-Bluetooth antenna.
This presentation describes the simulation of a hearing instrument (HI) device. The design was simulated in the presence of a homogeneous SAM phantom and an anatomically correct, heterogeneous head model. The simulation results illustrate the differences between the head models and highlight the more acceptable results for improved device safety.
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.
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.