Applications

CST market overview

CST offers products suitable for a wide range of electromagnetic design tasks, capable of simulating numerous components and systems.

Together, the products in the CST STUDIO SUITE® family can carry out electro- and magnetostatic, stationary, low-frequency and high-frequency simulations, as well as being able to calculate the effects of EM fields on substances as diverse as magnetic materials, biological tissues and charged particles. Tight integration with third party tools extends the application range even further.

The applications of CST software are almost limitless; among the devices that CST products have been used to simulate are couplers, filters, connectors, antennas, inductors, capacitors, PCBs, waveguides, travelling wave tubes, optical devices, sensors, actuators, electrical machines, SAR, MRI coils and cable harnesses, to name but a few.

Worked examples of applications of CST software are being added all the time. These can be found sorted by application area in the menu on the left, or through the site search at the top of each page.

 

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Design of an Ultra-Wideband High-Power-Microwave Traveling-Wave Antenna

Design of an Ultra-Wideband High-Power-Microwave Traveling-Wave Antenna Document type
In this article we discuss the design and implementation of high-power-microwave (HPM) traveling-wave antenna. The antenna is designed to be driven by a high-power, single-shot signal generator with 1 ns pulse-width at the -3 dB power points, and peak voltage of up to 100 kV. Since the signal generator is equipped with an air-filled coaxial-waveguide output, a coaxial-waveguide to parallel-plates transition was also designed and fabricated. Initial theoretical electrical parameters and characteristics along with physical dimensions of the system were solved and derived using MATLAB[1]. Then, the components comprising the antenna were modeled, solved and optimized using CST STUDIO SUITE®[2]. Using the CAD export capabilities in CST STUDIO SUITE, fabrication models and schematics were produced from the simulation model. The antenna was fabricated and measured results agree with simulation results to a great extent. Read full article..

Antenna Magus Version 5: Synthesis to Meet Specification

Antenna Magus Version 5: Synthesis to Meet Specification
From satellites to motor vehicles; from mobile telephones to radio-telescopes – a vast array of different antenna types are used in almost every modern industry and application. Engineers and system designers are regularly faced with the task of improving and adjusting these antennas or identifying, designing and evaluating new antenna options to meet changing system requirements. Read full article..

Integration of Savant 4.0 with CST STUDIO SUITE 2014

Integration of Savant 4.0 with CST STUDIO SUITE 2014
Detailed full wave analysis results for individual and isolated antennas can now be easily streamed into Savant V4 for an efficient workflow for installed antenna performance analysis. The high-frequency time domain, frequency domain (FEM) and integral equation (MoM) solvers in CST STUDIO SUITE 2014 can provide Savant with high-fidelity full wave antenna models for hybrid analysis to perform antenna placement studies and antenna-to-antenna analysis in Savant. Read full article..

Siemens Energy Optimises Power Transformers with the Aid of 3D EM Simulation

Siemens Energy Optimises Power Transformers with the Aid of 3D EM Simulation Document type
Finding customised solutions for any applications and specifications of transformers – this is the task of Siemens Energy T TR PN. It is difficult to obtain off-the-shelf solutions for furnace and converter transformers as well as transformers for High Voltage Direct Current for ratings greater than 200 MVA. 3D EM Simulation with CST EM STUDIO® (CST EMS) is a vital tool in the optimisation process of transformer installations. Read full article..

Derivation of a transformer low frequency equivalent circuit using electromagnetic field simulation

Derivation of a transformer low frequency equivalent circuit using electromagnetic field simulation
Equivalent circuits of electromagnetic devices are an efficient alternative to full transient EM analysis especially when phenomenon such as inrush currents are investigated. The time-constants in such cases generally, for a 50 Hz transformer, are in the order of several minutes hence rendering full transient EM simulation time consuming. On the circuit level, the simulation time involved is a fraction of the EM transient case. Furthermore, parametric analysis may take place in the circuit simulation allowing what-if scenarios to be tested e.g. effect of system impedance on inrush behaviour. This article shows the application of the CST EM STUDIO® (CST EMS) Magnetostatic solvers to the emulation of two standard transformer tests for the extraction of T-equivalent circuit parameters. Important is the facility to account for the non-linear magnetization inductance in such a equivalent circuit. The circuit is then tested in CST DESIGN STUDIO™ the results of which are then compared to the CST EMS transient solver. Read full article..

Modeling the installed performance of a SATCOM antenna on a UAV

Modeling the installed performance of a SATCOM antenna on a UAV
The installed performance of a SATCOM reflector antenna on a UAV platform is modeled using Delcross Savant. Far field radiation patterns are computed and animated as the gimbaled antenna assembly is rotated through 360 degrees in a radome in the forward sensor compartment. Read full article..

Modeling of large microwave cavities for industrial and scientific applications

Modeling of large microwave cavities for industrial and scientific applications Document type
The cavities of microwave heating devices need to be carefully designed in order to ensure safe, efficient operation and homogeneous field distributions. The size, the number of modes and the resonant nature of a cavity can pose difficulties for their simulation. This paper discusses the modeling of microwave cavities and demonstrates how a system for heating test samples was optimized using electromagnetic simulation. Read full article..

Analyzing RF Coexistence in a Mobile Handset

Analyzing RF Coexistence in a Mobile Handset Document type
A typical smartphone handset can contain numerous different RF systems, including multi-band cellular antennas, Wi-Fi, Bluetooth, NFC and navigation systems such as GPS and GLONASS. All these systems need to be able to coexist without causing cosite interference. This application note shows how CST STUDIO SUITE® and Delcross EMIT can be used to investigate interference between antennas on a smartphone, and how potential mitigation strategies can be investigated using simulation. Read full article..

Advanced RCS Analysis of Airborne Vehicles

Advanced RCS Analysis of Airborne Vehicles
Analysis by electromagnetic simulation allows the designer to characterise the RCS of a target far more extensively than would be possible for similar cost and time expenditure by measurement. CST STUDIO SUITE® provides extensive functionality to analyse and optimise the RCS of targets of all shapes and sizes. Objects of interest imported from a variety of CAD formats can be easily modified and parameterized. Different solver approaches are available to the user, depending on the size and complexity of the model, and on the desired output. Direct simulation in the time domain allows the application of realistic radar signals, visualization of time domain field interaction with the target, and direct calculation of its radar signature. For larger and more complex structures, the MLFMM and asymptotic solvers are optimized for performing fast mono- and bi-static RCS calculations of single and multiple targets (e.g. physical countermeasures), even considering realistic radar antenna source patterns. Complex material properties, for example of Radar Absorptive Material (RAM) and multi-layer coating material can be considered. This webinar will discuss all these issues using a ship-borne aircraft as an example. Read full article..

Dielectric breakdown simulations of a transformer On-Load Tap Changer

Dielectric breakdown simulations of a transformer On-Load Tap Changer
Electromagnetic field simulation offers an inisght into the influence of component placement in power engineering equipment which is otherwise difficult, expensive or impossible to obtain in test and measurement. Transformer On-Load Tap Changers (OLTC) are not designed and tested in their environment in a transformer. The effect of the transformer and the tap-leads on the dielectric field strength may be investigated with the application of the CST EM STUDIO® electrostatic field solver. Read full article..

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