Education

For the engineering industry to thrive, fresh talent must be developed and nurtured. CST recognizes this need, and offers educational packages and reduced-price licenses for CST STUDIO SUITE® and Antenna Magus, to help colleges and universities provide the students with the tools they need for success.

CST also runs the University Publication Award, to acknowledge and reward groundbreaking research from university institutes. Selected institutions will receive an upgraded CST STUDIO SUITE license. For more information, see the CST University Program.

The examples in this section all come from universities using CST products, and demonstrate the wide range of fields that they can cover.

Education

All Articles

CST STUDIO SUITE Brochure

CST STUDIO SUITE Brochure Document type
CST STUDIO SUITE 2016 is the culmination of years of research and development into finding the most accurate and efficient computational solutions for lectromagnetic (EM) designs. From static to optical, and from the nanoscale to the electrically large, CST STUDIO SUITE includes tools for the design, simulation and optimization of a wide range of devices. Analysis is not limited to purely EM effects, but can also include thermal and mechanical effects and circuit simulation. Read full article..

C-Band On-Axis Coupled Standing Wave Linear Accelerator

C-Band On-Axis Coupled Standing Wave Linear Accelerator
Linear Accelerators (Linacs) are widely employed in accelerator facilities. Linear acceleration is the method of choice for light particles as synchrotron radiation effects limit the usability of circular accelerators for these particles. Industrial applications require compact linacs for the acceleration of electrons with target energy in the range between 1 and 25 MeV. CST MWS and PS can be used to investigate the high frequency behaviour of linac structures as well as the interaction between particles and the accelerating field. Read full article..

A dual-band antenna for a sounding rocket

A dual-band antenna for a sounding rocket
A group at ENSEIRB-MATMECA, Bordeaux Institute of Technology, used CST STUDIO SUITE to develop a low cost antenna that can be integrated into the nose cone of a rocket and transmit payload and telemetry data in the 869.4–869.65 MHz and 2.4–2.4835 GHz frequency bands. Read full article..

Investigating the Principles of a Dielectric Laser Accelerator

Investigating the Principles of a Dielectric Laser Accelerator
This article presents a principle investigation on dielectric laser accelerators via simulation. Read full article..

Nanophotonics and integrated optics - Photonic Crystal Cavities

Nanophotonics and integrated optics - Photonic Crystal Cavities Document type
This whitepaper gives a general overview on different concepts of photonic crystal cavities. Important figures such as the transmission, the mode volume and the quality factor are discussed. The presented information will help the reader to decide which type of photonic crystal cavities will be most suited for the application in view. A design example for a WDM channel filter is given in order to illustrate the design process for a photonic crystal cavity. Furthermore two experimental examples from recent research are shown to demonstrate the wide range of applications in which photonic crystal cavities could be used. Read full article..

RF Thermoablation in a Human Liver using the Bioheat Formulation in CST STUDIO SUITE

RF Thermoablation in a Human Liver using the Bioheat Formulation in CST STUDIO SUITE
This article is concerned with the evaluation of the temperature distribution inside a human liver when a catheter is inserted. It summarises the simulations performed with the HUGO and University of L'Aquila's ALES anatomical models. The co-simulation procedure using both CST MICROWAVE STUDIO® (CST MWS) and CST EM STUDIO® (CST EMS) is also described. With permission and courtesy of the University of L'Aquila, Italy. Read full article..

A Polarisation Independent Bandpass FSS

A Polarisation Independent Bandpass FSS
This application note describes the use of CST MICROWAVE STUDIO® in optimising the geometry of a free standing nested annular slot type Frequency Selective Surface (FSS). An isolation of better than 20 dB between the 316.5-325.5 GHz and 349.5-358.5 frequency bands was achieved in both the TE and TM planes for a 45 degree incident plane wave, while the insertion loss was below 1 dB. Read full article..

Optimisation of a 10-Way Conical Power Combiner

Optimisation of a 10-Way Conical Power Combiner
This article describes the use of CST MICROWAVE STUDIO® in simulating and optimising a 10-way conical transmission line power combiner operating at X-band (6-14 GHz). Simulated and measured results are compared. Read full article..

Simulation of Photonic Crystal Cavities

Simulation of Photonic Crystal Cavities
This article demonstrates how properties of the resonant modes of photonic crystal (PhC) point defect cavities are obtained from transient solver simulations using CST MICROWAVE STUDIO®. In this example a single point defect in a triangular lattice of air holes in a high refractive index slab is used. Properties of particular interest are: the resonance frequency, intrinsic Q factor and field distribution of the resonant modes. The cavity is excited using discrete ports, and the spectral features are recorded with point probes. The Q factor is determined from the energy decay rate and using auto regressive filtering. 2D and 3D field monitors record the field distributions. Read full article..

Simulation and Construction of Body Coil substitute at 7T Whole Body MRI-System with Travelling Wave Concept

Simulation and Construction of Body Coil substitute at 7T Whole Body MRI-System with Travelling Wave Concept Document type
Tim Herrmann, Johannes Mallow, OvG University Magdeburg Magnetic resonance imaging (MRI) is one of the most important non-invasive examination methods in the modern medicine. To raise up examine possibilities, MRI systems with more powerful magnetic fields are constituted. The standard high-field whole body (1.5T-3T) MRI Systems (Fig. 1) are using a body coil for the excitation. MRI at ultra-high-field (UHF) requires different Tx-coils for excitation of different body parts since the construction of one large body coil, similar to those at lower fields, is to difficult. Moreover, at 7T B1 is inhomogeneous as the RF-wave length within the object is smaller than the object extensions. While in RF-coils the usable B1-field is restricted to dimensions and geometry of the RF-coil itself, with the new travelling wave concept, described by Brunner [1], the usable B1-field is restricted to the dimensions of the waveguide (RF-shield) only. Thus the MR travelling wave concept allows excitation of large volumes depending on the length of the RF-shield. For an antenna with a frequency of 297MHz the approximate wavelength is about 1m. Thus the RF-shield of the gradient coil with a diameter of 64cm can be used as a waveguide, because of the cut-off frequency. The cut-off frequency is the minimum frequency where a wave fits into the waveguide without damping. This study examines the use of the travelling wave concept as an efficient body coil replacement in UHF MRI-System with the support simulations in CST Microwave Studio 2009 and measurements. Therefore two different types of antennas have been simulated and produced. The B1-field distribution of a dipole and a patch antenna where simulated and compared with B1-field measurements in a 7T MRI System. The efficiency compared to a 1.5T body coil was investigated. Further research goals are to create biological models based on anatomical MRI-Dataset for use in field-simulation software with dynamic thermal solver for more realistic SAR calculation. However the remaining problems of exposing sensitive body parts, such as the human head by increased SAR needs to be solved for next generation UHF MRI-Systems. Read full article..

Characterization of Photonic Structures with CST MICROWAVE STUDIO

Characterization of Photonic Structures with CST MICROWAVE STUDIO Document type
Stefan Prorok, Hamburg University of Technology We present an overview of our current research activities in silicon photonics and thermal barrier coatings. Doing so, we will comment on how CST Microwave Studio can be used to design strip waveguides, micro ring resonators, as well as 2-D and 3-D photonic crystal structures. Particularly we will concentrate on the discussion of photonic crystal micro cavities which can be used as electro-optic modulators. It will be shown that MWS provides all the functionality to optimize and characterize optical micro cavities. The appearance of resonant modes is adjusted through eigenmode calculation of the photonic crystal waveguide modes. Time domain simulation with discrete port excitation is applied to calculate the intrinsic Q-factor of the cavity. Waveguide ports are used to model experimental conditions of excitation with strip waveguide modes. Field monitors help to understand the mechanism of energy loss from the cavity. The simulation results are compared to measurements on fabricated structures. As possible application we will show a hybrid silicon organic hetero structure cavity for GHz electro-optic modulation. Read full article..

Calibration of Probes for EMC Near-Field Scanning

Calibration of Probes for EMC Near-Field Scanning Document type
Matthias Spang, University Erlangen-Nuremberg In order to carry out near-field scans of printed circuit boards for EMC investigations, knowledge of the electric and magnetic fields above various calibration boards is necessary. CST Microwave Studio’s transient solver is therefore employed to calculate the near-field patterns on a scanning plane above various microstrip structures. After a spatial 2D-Fourier-transformation, the field values and the measured probe output signals are used to determine the field probe’s receiving characteristics. The results of this calibration process are then verified by applying them on further field measurements with the probe above another microstrip structure and comparing the obtained field strengths with respective simulations again. To obtain a high spatial field resolution, roughly 2.5 million meshcells are used. The frequency band of interest extends from 1MHz up to 3GHz so that great importance is attached to sufficient energy decay. Read full article..

X-Band Squintless Horn Antenna Array (96 elements)

X-Band Squintless Horn Antenna Array (96 elements)
This article concerns the design of a X-Band squintless horn antenna array consisting out of 96 radiating elements. The full design of the 2.4m antenna blank (including the simultaneous excitation of all 96 arms) has been performed within CST MICROWAVE STUDIO®. The simulated results have been in an excellent agreement with compact range measurements. Read full article..

Designing a Band Notch Filter for a UWB Antenna Using CST MWS

Designing a Band Notch Filter for a UWB Antenna Using CST MWS Document type
Ad Reniers, Technical University Eindhoven High-data-rate wireless communications need wide bandwidths. In the Ultra-Wideband (UWB) frequency band from 3.1 GHz to 10.6 GHz, information may be spread over a large bandwidth at low power levels thus creating the possibility to share the spectrum with other users. To prevent interference with existing wireless systems, like IEEE 802.11a WLAN, stop band characteristics are required from 5 GHz to 6 GHz*. The notch filter function is designed in a low-cost circular planar dipole antenna based on the ‘two-penny’ dipole. To achieve the required specifications for this notch function we used first the CST optimizer. After that we optimized systematic the design. In this presentation we want to show the results of both approaches to achieve a maximum result and try to understand the working of this notch and spur function in this compact UWB antenna. * Paper: Low-cost, compact UWB antenna with frequency band-notch function. H.J. Visser. Read full article..

Design of Circularly-Polarized Patch Antennas using CST MICROWAVE STUDIO®

Design of Circularly-Polarized Patch Antennas using CST MICROWAVE STUDIO®
An RFID Reader Antenna with the following specifications was designed: - Frequency: 908.5 - 914 MHz (In Korea) - VSWR: less than 2 with 50-ohm impedance - Polarization: circular - Axial ratio: less than 3 dB @ 908.5 - 914MHz - Gain: 6 dBi @ 1W transmitted power - Size and weight: as small as possible This article is published with the permission and courtesy of Prof. Bierng-Chearl Ahn and his colleagues at Chungbuk University, Korea. Read full article..

Klystron Output Resonator - Particle-in-Cell (PIC) Simulation

Klystron Output Resonator - Particle-in-Cell (PIC) Simulation
This article shows the simulation of a klystron output resonator. The simulation was performed using the Particle in Cell (PIC) code of CST PARTICLE STUDIO™. The PIC code is embedded in the transient solver of CST MICROWAVE STUDIO® and benefits therefore from a mature environment. Read full article..

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