• Which Products are you interested in ?

    CST offers a wide range of EM simulation software to address design challenges across the electromagnetic spectrum, from static and low frequency to microwave and RF, for a range of applications, including EDA & electronics, EMC & EMI and charged particle dynamics.

  • CST STUDIO SUITE
  • CST EMC STUDIO
  • CST BOARDCHECK
  • Antenna Magus
  • IdEM
  • FEST3D
  • Optenni Lab
  • Looking for a Training, Workshop or eSeminar ?

    CST STUDIO SUITE® is being demonstrated at trade shows and workshops all over the world. Take a look at the list of conferences and exhibitions CST will be attending and get further information regarding CST workshops, eSeminars and training days.

  • TrainingsRegular training courses are held in CST's offices in Asia, Europe, and North America. Please check our trainings section for detail of trainings in all over the globe. Advance registration is normally required.

  • WorkshopsCST hosts workshops in multiple languages and in countries around the world. Workshops provide an opportunity to learn about specific applications and refresh your skills with experienced CST support staff. Make sure you visit our workshop section.

  • eSeminarsThroughout the year, CST simulation experts present eSeminars on the applications, features and usage of our software. You can also view past eSeminars by searching our archive and filtering for the markets or industries that interest you most.

  • Check our latest Events
  • Why create a MyCST Account ?

    A MyCST account may facilitate your access to many of the offerings on the CST website, for example the registration for eSeminars and the watching of eSeminars recordings, setting email preferences, and there is more functionality to come. It is required to participate in workshops and trainings.

  • Personal PreferencesAllows you to update your email preferences and areas of interest. It helps us to personalize your experience.

  • EventsSearch for events by location, industry and application. Once you are registered, you will be able to manage your registrations and check important details about your events. This section also provides you with a repository for Workshop & Training material.

  • LibraryYou can collect articles you find on the CST website to reference or read later by clicking on the “Add this article” button at the bottom of the article page.

  • Create Your Own Account
  • Need technical Support ?

    Customers can customize their accounts once they have completed the account creation process. This platform acts as vivid interface between CST and our customers.

    We therefore offer access to the latest Service Packs (including an automatic notification that a new Service Pack is available), a steadily growing database of Frequently Asked Questions (FAQs), Application Notes and Training Videos, as well as an individual FTP section for easy exchange of large files with our support team.

  • Do I need an Account?To access the Support Site a valid maintenance contract and a one-time registration is required.

    Please note that your Support login does not work for the MyCST account.

  • Get Support
  • How to request a Trial License ?

    Get your license in only three steps:

    1. Fill in the required fields in the contact form on the right and click "Send Us Your Request".

    2. Lean back and wait until one of our CST Experts contacts you.

    3. Enjoy a our trial license.

  • Student Edition

    Student Edition The CST STUDIO SUITE® Student Edition has been developed with the aim of introducing you to the world of electromagnetic simulation, making Maxwell’s equations easier to understand than ever. With this edition you have, bar some restrictions, access to our powerful visualization engine and some of the most advanced solvers of CST STUDIO SUITE.

    Student Edition

CST – Computer Simulation Technology

Kymeta Develops Novel Metamaterial Antennas with CST Studio Suite

THE IDEA: SATELLITE BROADBAND, FROM ANYWHERE

Satellite broadband promises fast, flexible internet access from anywhere in the world. Although major satellite operators have already begun deploying next-generation satellites with high data throughputs, accessing these currently requires bulky, expensive equipment with high power requirements for the user. Unlocking the full potential of these data links requires an antenna solution that can track satellites while also being portable enough to attach to a vehicle or take into the field.

To enable widespread adoption of satellite broadband, especially for mobile users, Kymeta is developing and marketing mobile satellite communications terminals using a new reconfigurable antenna technology, known as Metamaterials Surface Antenna Technology (MSA-T), shown in Figure 1. This offers the electronic beam-steering performance of a typical phased array, but with much lower power consumption. A dramatic cost reduction is achieved compared to mechanical or phased array products and many of the size, weight and power challenges associated with the existing techniques are alleviated....

Figure 1 A prototype of the MSA-T antenna array and feed network.

THE CHALLENGE: TUNING AND PROTOTYPING AN ARRAY WITH THOUSANDS OF ELEMENTS

MSA-T uses several thousand sub-wavelength resonators, which are individually activated to shape and direct the beam (Figure 2). This meant that designing a working metamaterials-based antenna required numerous interdependent variables to be optimized. Kymeta used the frequency domain solver in CST MICROWAVE STUDIO® (CST MWS) to quickly and accurately model the complex interactions between various design features, significantly easing the prototyping and development effort. The macro-driven model generation tools in CST Studio Suite were a good fit to array design. Using macros to generate the multitude of elements that comprise the antennas sped up the process greatly.

Figure 2 CST Studio Suite nearfield simulation result, showing beam-forming MSA-T.

For simulating larger sections and even the whole array, Kymeta turned to the time domain solver. The MSA-T arrays consist of thousands or tens of thousands of elements, and can reach 60 λ by 60 λ in size. To simulate these complex, electrically-large arrays, Kymeta used GPU acceleration with four Nvidia Tesla® K40 cards. Together, these made it possible to simulate large sections of the array within a day.

Once Kymeta had a viable initial design, it was fine-tuned using the Trust Region Framework optimizer. This is a powerful local optimization algorithm built into the CST MICROWAVE STUDIO design environment, which can use sensitivity information to speed up the optimization process. Optimizations were carried out over multiple variables – in some cases, as many as 40 in a single run – to improve the characteristics of the antenna. The parameters that described the excitation of the array were also optimized using the same tools to allow high-performance beam steering.

THE RESULT: A SMALL, PRACTICAL SATELLITE TERMINAL

Virtual prototyping reduced Kymeta’s prototyping costs by reducing the number of real prototypes required during the design process. It also helped inform the decision-making process, offering insight into what worked and what did not. The range of import/export tools for CAD formats such as Gerber, DXF and SAT made it feasible to start and develop designs using CST Studio Suite, and then send them to other platforms and vendors when necessary.

Figure 3 Kymeta Portable Satellite Terminal mock-up.

From the founding of Kymeta right through to the production of field-tested prototypes, CST Studio Suite has been an integral part of the design process at the company. Using CST Studio Suite, Kymeta were able to design a range of antennas with a smaller form factor and reduced weight, while also keeping costs and power consumption low.

x

CST MICROWAVE STUDIO provided a necessary component of our RF design flow at Kymeta. Without it, the challenge of designing numerous interrelated antenna features would have been nearly insurmountable.

AuthorQuote

Adam Bily
  • Adam Bily
  • Lead RF Design Engineer, Kymeta Corporation

Rate this Article

0 of 5 Stars
5 Stars
0%
4 Stars
0%
3 Stars
0%
2 Stars
0%
1 Stars
0%

Kymeta Corporation is commercializing a new, innovative software-enabled metamaterials-based electronic beamforming antenna for satellite communications. Kymeta has been named by MIT Technology Review, as well as by CNBC, as one of 2013’s 50 most disruptive companies as part of their annual list of the world‘s most innovative technology companies. Kymeta was selected by Future in Review as a 2014 FiRe Starter company. The company is based in Redmond, Washington, and operates on a worldwide basis.

contact support

Your session has expired. Redirecting you to the login page...

We use cookie to operate this website, improve its usability, personalize your experience, and track visits. By continuing to use this site, you are consenting to use of cookies. You have the possibility to manage the parameters and choose whether to accept certain cookies while on the site. For more information, please read our updated privacy policy


Cookie Management

When you browse our website, cookies are enabled by default and data may be read or stored locally on your device. You can set your preferences below:


Functional cookies

These cookies enable additional functionality like saving preferences, allowing social interactions and analyzing usage for site optimization.


Advertising cookies

These cookies enable us and third parties to serve ads that are relevant to your interests.