Electro Magnetic Applications, Inc.’s Post

Check Out: Part 2 - Model Rap Blog: Introducing Modelithics Models for Single-Layer Capacitors. Part 1 of this two-part blog series focused on Modelithics’ equivalent-circuit models for single-layer capacitors (SLCs). In Part 2, we’ll turn our attention to 3D electromagnetic (EM) geometry models for these same components, featuring Tecdia Co., Ltd. Type C (Class 1) borderless SLC series and Ansys HFSS. These models incorporate materials with complex frequency-dependent dielectric constants to allow for accurate simulations up to 60 GHz. In this blog post, you’ll learn about the advanced features of these models and see some example simulations. Part 1- Circuit Models: https://lnkd.in/e88NGcZG Part 2 - 3D EM Models: https://lnkd.in/es8azgjM #modelithics #singlelayercapacitors #modelrapblog #tecdia #ansys #hfss

Keyhole formation during the LPBF process. LPBF includes intricate interactions between laser energy, powder material, and the resultant melt pool. These interactions take place at high temperatures and include phenomena such as vaporization and fluid movement, which are difficult to monitor. CFD simulations serve as a virtual window, allowing us to see and examine these processes in greater detail. The keyhole is essential for a good LPBF. A well-behaved keyhole promotes optimum melt pool geometry and smooth material deposition. CFD models can forecast keyhole parameters like as depth, size, and stability. This information is critical for adjusting laser power, scan rates, and other LPBF process parameters to obtain the desired keyhole profile. Uncontrolled keyhole dynamics can cause flaws such as porosity (air pockets) and spatter (ejected molten material). The application of AM PravaH, a customized CFD program for additive manufacturing simulations, is demonstrated in the movie. AM PravaH is a potent tool for AM process optimization as it probably includes features and models designed especially to simulate the intricate physics of LPBF. #additivemanufacturing #lpbf #meltpool #simulation #AMPravaH

📢 What is new in Ansys Charge Plus? Ansys Charge Plus supports an array of analyses by leveraging four physics solvers designed to tackle internal and surface charging, particle transport, and arcing across interfaces. #Ansys #ChargePlus expedites the assessment and management of risk associated with material charging and discharging. Here's a glimpse of what's new in Ansys Charge Plus 2024 R1: · Explore powerful integration data processing tools · Experience lightning-fast simulations with #GPU acceleration · Enhance precision with updated mesh capabilities · Seamlessly import #HFSS fields into FEM simulations · Discover new particle-in-cell (PIC) emission models for enhanced accuracy · Simplify radiation hardening with a one-click workflow These enhancements elevate your simulation experience, making workflows more efficient and results more insightful. Ready to dive deeper into Ansys Charge Plus 2024 R1? Don't miss our upcoming webinar, "Ansys 2024 R1: Charge Plus What's New", on April 23rd. Register: https://ansys.me/3xF0q8l #EMA #simulation #PECVD #plasma

Understanding the differences between mesh elements in CFD simulations is crucial for achieving accurate results. Hexahedral elements, like Hexacore, offer high accuracy and stability, making them ideal for simple geometries. On the other hand, Polyhedral elements (Polycore) excel in flexibility and ease of mesh generation for complex shapes. Polyhexcore elements strike a balance between accuracy and flexibility, suitable for various applications. When choosing an element type, consider the geometry complexity and accuracy requirements of your CFD problem. Whether opting for Hexahedral for simple shapes, Polyhedral for complex geometries, or Polyhexcore for a mix of features, each element has its strengths and limitations. Making an informed decision on mesh elements is key to enhancing the efficiency and reliability of your CFD simulations. Stay informed and choose wisely! #CFD #Fluent #FVM #ANSYS #STARCCM

Tech Tip Tuesdays with Ansys Optics: Diffraction Grating with Anisotropic Materials In this article, a tunable grating made with anisotropic liquid crystal (LC) material is characterized with the Ansys Lumerical RCWA solver. The thickness of the cell and the orientation of the LC molecule are tuned to reach 100% efficiency in the first orders of diffraction at certain wavelengths and eliminate therefore the 0 th order. The workflow uses Ansys Lumerical to construct the grating model and simulate its response with the RCWA solver. The grating is formed with liquid crystal molecules having their long axis oriented in the XY plane, providing in-plane anisotropy. A periodic spatial variation on the LC orientation is induced to design the grating. The diffraction characteristics are then exported into the Ansys Lumerical Sub-Wavelength Model (LSWM) JSON format for modelling this grating in a system-level simulation in Ansys Zemax OpticStudio. Here are the steps: Step 1: Design a grating with a cycloidal director pattern In this section, we show how to use Ansys Lumerical to setup a LC cell where the orientation of the long axis is varying spatially. Step 2: RCWA simulation with in-plane anisotropy The efficiency in the different orders is computed with the RCWA solver. The thickness is tuned to obtain the elimination of the 0 th order at the desired wavelength. Step 3: Export grating characteristics toward Zemax OpticStudio The results of the RCWA simulation can be saved in .json format and imported directly into Zemax so that the grating can be included in a ray-tracing system. Get the full workflow details here: https://ansys.me/45ZVwjp #DiffractionGrating #Optics #Photonics #AnsysOptics

𝐀𝐧𝐭𝐞𝐧𝐧𝐚 𝐃𝐞𝐬𝐢𝐠𝐧 𝐰𝐢𝐭𝐡 𝐂𝐡𝐚𝐫𝐚𝐜𝐭𝐞𝐫𝐢𝐬𝐭𝐢𝐜 𝐌𝐨𝐝𝐞 𝐀𝐧𝐚𝐥𝐲𝐬𝐢𝐬 (𝐂𝐌𝐀) Harnessing the power of Characteristic Mode Analysis (CMA) revolutionizes antenna design by offering deeper insights compared to traditional brute force optimization in driven simulations. CMA naturally provides characteristic eigenvalues and orthogonal current modes supported by the structure, allowing designers to optimize antenna geometry for enhanced radiation, matching, and desired polarization properties. With 𝐀𝐧𝐬𝐲𝐬 𝐇𝐅𝐒𝐒, we can calculate the characteristic value, characteristic angle, and modal significance, granting practical insights into the behavior of the modes. It also allows us to visualize current distributions and fields for each mode, aiding in the physical interpretation and design of antennas. For instance, in designs aiming for broad bandwidth, adjusting the geometry to align multiple radiating current modes within the desired band becomes feasible. In this example, our engineer Mohamed Rohaim demonstrate the creation of a well-known circularly polarized patch antenna for GPS applications using Ansys HFSS. This design features a square patch antenna with two triangular cuts, aiming to excite two modes that are 90° out of phase. This results in a rotating current and a circularly polarized antenna, with mode 1 following the longer diagonal and mode 2 the shorter diagonal. Optimizing the feed position and cut dimensions would be extremely challenging without the insights provided by CMA current modes and modal significance results. In driven models, these results combine the modes, making it difficult to independently visualize each mode. #FluidCodes #AnsysEliteChannelPartner #Engineering #Simulation #AnsysHFSS #Antenna #CharacteristicModeAnalysis #Technology

We just cannot stop talking about the updates to the Ansys Speos Stray Light Analysis Sequence Detection Tool included in the 2024 R2 Release! The sequence detection tool has been improved to streamline the analysis of detected sequences, starting with the list of sequences. The list offers new sorting capabilities with Average and Peak columns that correspond to the values previously described and allows users to gain insights into the number of interactions by type—whether reflection/transmission or specular/Gaussian/Lambertian. The new tool also includes a dedicated filter panel, making it easier than ever to refine your search by selecting up to two columns and setting minimum or maximum values for more precise results. Don’t take our word for it check out this video and then request a free trial of Ansys Speos optics design and simulation software so you can experience it yourself! https://ansys.me/48d25Ac #OpticalDesign #AnsysSpeos #StrayLight #Photonics #Simulation #Innovation

A review article on multiscale simulation in electrical conduction analysis is now available. The "electrical conduction" includes a variety of phenomena occurring at different scales.  This article describes each phenomenon and the corresponding simulation method such as finite element method (FEM), molecular dynamics (MD) and first-principles calculations (DFT).  It is useful for the development of various materials such as batteries and displays.  Please take a look! >>https://lnkd.in/gUKMK5gr #molecularmodeling #moleculardynamics #FEM #DFT #simulation #electricalconduction #battery #display

Check out what's new in #Ansys HFSS, and keep an eye out for upcoming webinars from PADT, covering all of the in's and out's of this exciting new release. #Simulation | #Electronics | #Antenna | #Ansys2024R2

What is new in #HFSS? Say goodbye to #Antenna array Mayhem: HFSS 2024R2 makes complex arrays easy! Designers often struggle with creating and simulating complex antenna array structures, especially when stacking arrays vertically or incorporating multiple arrays on a single platform. This process can be time-consuming, error-prone, and computationally intensive to the point of making such designs not feasible. Ansys HFSS offers an industry-leading methodology for solving component arrays called the component array domain decomposition method (CADDM), which delivers significant simulation time and memory savings. Antenna array designers have come to rely on the efficiency of CADDM to accurately model finite arrays or to integrate a single finite array on a platform. There are many cases where multiple finite antenna arrays need to be modeled together and - in those cases - the CADDM technology can no longer be leveraged, forcing designers to either use a less efficient solver methodology or forgo the fully coupled analysis of the more complete system. #Ansys HFSS 2024R2 advances innovation in antenna array and communication system designs by extending the CADDM solver methodology beyond a single finite array. In the 24R2 version of HFSS, designers can now define multiple arrays in a single model and still benefit from the use of CADDM, making the solving process faster and more efficient for designs such as a 5x5 patch antenna array with a 14x14 frequency selective surface (FSS) radome in a metallic enclosure, as shown in the animation below. This capability can also be used when incorporating multiple arrays on a platform. By simplifying the process of defining, stacking, incorporating, and simulating multiple antenna arrays, HFSS enhances simulation efficiency for antenna design and placement engineers, reducing the time and effort needed to achieve accurate results. Make sure to catch our very own Principal Product Manager, Sara Louie, on August 6th as she presents the latest Ansys R2 updates for the High Frequency #Electronics products. https://ansys.me/3yupfVn #electromagnetics