To meet the increasing accuracy needs of high performance automotive radar design work, the FDTD EM simulation method has emerged as a better solution than traditional FEM formulations. FDTD overcomes FEM limitations that force design engineers to trade away accuracy and to simplify their simulation models. This paper introduces FDTD’s advantages for automotive radar circuit and systems level designers.
This is a list of published papers and articles that reference our software.
Entries in GPU Acceleration (17)
This whitepaper demonstrates how XFdtd's time-domain approach enables rapid development by allowing engineers to determine the performance of a fully detailed sensor model installed behind a piece of fascia without needing to build prototypes and run tests in an anechoic chamber. The analysis of a 25 GHz sensor frames the discussion.
This paper outlines the advantages of FDTD EM simulation for analyzing antenna-in-system designs that include both the antenna package and the automobile body features surrounding the device. An XFdtd simulation of a radar mounted in the rear bumper of a sedan provides the framework for the discussion.
With XFdtd EM Simulation Software, there is no limit to the resources you can exploit to solve your EM calculations. This report quantifies the performance profile of XFdtd’s GPU and MPI technologies. We demonstrate the pros and cons of different combinations of equipment and techniques, including cost considerations for those researching available hardware.
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.
Devices designed for free space operation often fail to meet expectations when deployed in their actual environment. This study considers the example of designing a broadband antenna for an unattended ground sensor using Remcom's XFdtd Release 7 (XF7). 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.
Applications ranging from communications to RADAR and even medical devices depend on antenna arrays. Hand calculations successfully facilitate the construction of stand-alone arrays; however, what happens when the mounting platform becomes a part of the radiating system? XFdtd 3D EM Simulation Software ensures that the final design meets all requirements before physical prototyping or manufacturing can begin. 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 XF7’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.
The use of general purpose computing on a GPU is an effective way to accelerate the FDTD method. This paper introduces ﬂexibility to the theoretically best available approach and examines the performance on both Tesla and Fermi architecture GPUs and identiﬁes the best way to determine the GPU parameters for the proposed method.
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 XF7’s features for the design, optimization, and analysis of waveguide devices.
Array modeling is a multistep process that often includes several revisions until the design goal is met. The Mobile Base Station Designer in XF7’s XTend Script Library helps to speed up this design process. XStream® GPU 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.
This paper discusses using GPU acceleration within the Moving Window Finite Difference Time Domain (MWFDTD) method to achieve real time propagation simulation while maintaining accuracy.
Ultra-wideband communications technologies such as LTE and WiMax take advantage of advanced equipment configurations such as complex antenna geometries and phased-array emitters. Such systems become tedious or impossible to model analytically, and are therefore highly suited for analysis by electromagnetic simulation. Additionally, once a device alone is modeled, it is necessary to simulate its performance as placed in a practical environment (such as an urban area). This presentation demonstrates how Remcom's XFdtd and Wireless InSite tools, utilizing GPU acceleration technology, are used together to perform advanced communication systems analysis.
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. Using high-end GPU-accelerated computing, Remcom was able to complete the work in a very short amount of time. Outsourcing this part of the project to Remcom saved ReGear time and money, allowing them to focus on marketing the product rather than bringing expensive EM resources in-house.