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Nuhertz is proud to be a recognized partner of other leading technology companies in facilitating the designs and implementation of RF Filter circuits.  Below are brief descriptions of three companies that utilize our software solutions in support of their products:


Coilcraft LogoOne of the world’s leading suppliers of inductors has joined with Nuhertz Technologies to provide a FilterSolutions synthesis tool on the Coilcraft website. The Coilcraft LC Filter Designer can be downloaded at www.coilcraft.com/lc.   

This free software lets engineers design filters whose response is realized using Coilcraft inductors. The Nuhertz FilterSolutions® program simulates the performance of a small order elliptic lumped element filter using s-parameter data for various Coilcraft inductor families. The program outputs a schematic and a list of the specific part numbers needed to realize the filter performance. A button makes it easy to request free samples that Coilcraft will ship the same day.  

About Coilcraft

Founded in 1945 and headquartered near Chicago, Coilcraft manufactures high performance, tight tolerance magnetic components including RF chip inductors, power magnetics and filters. Surveys consistently rank Coilcraft as the #1 favorite of engineers thanks to the company’s easy-to-use web site, powerful selection and comparison tools, liberal free sample policy, and responsive technical support.


Computer Simulation Technology
Nuhertz®, in partnership with CST,  provides the ability to integrate filter synthesis with a full-wave 3-dimensional electromagnetic analysis tool. Working with CST STUDIO SUITE®, a new capability in analytic tool integration is now available.

About CST

CST develops and markets high performance software for the simulation of electromagnetic fields in all frequency bands. Its success is based on the implementation of leading edge technology in a user-friendly interface.  CST’s customers are market leaders in industries as diverse as Telecommunications, Defense, Automotive, Electronics, and Medical Equipment.  Today CST employs 190 sales, development, and support personnel, and enjoys a market share of over 30% in high frequency 3D-EM simulation.

CST STUDIO SUITE is the culmination of many years of research and development into the most accurate and efficient computational solutions for electromagnetic designs.  It comprises CST’s tools for the design and optimization of devices operating in a wide range of frequencies:  static to optical.  Analyses may include thermal and mechanical effects, as well as circuit simulation.

CST STUDIO SUITE benefits from an integrated design environment which gives access to the entire range of solver technology. system assembly and modeling, and facilitates multi-physics and co-simulation as well as the management of entire electromagnetic systems.  CST STUDIO SUITE can offer considerable product to market advantages such as: shorter development cycles, virtual prototyping before physical trials, and optimization instead of experimentation.  

Further information about CST is available on the web at www.cst.com.


Dr. Mühlhaus Consulting & Software GmbH


Dr. Mühlhaus Consulting & Software GmbH is specialized in accurate RF & microwave simulation. Consulting offerings include design and simulation of high frequency PCB layouts, filters and PCB antennas in the frequency range up to 24GHz. In addition to PCB technology, the company also offer EM simulation and passive component design for RFIC and LTCC technologies.



Nuhertz Technologies has provided the capability to optimize synthesized filter circuits with the use of Modelithics® component models.  In conjunction with Modelithics, the model library now included in National Instruments-AWR Corporation’s Microwave Office®,  provides the designer access to a tested set of physically meaningful and highly scalable component models. This capability, in turn, provides a uniquely powerful new fast way to create fully producible circuits with the advantages of Nuhertz’s FilterSolutions designs.  

About Modelithics

MODELITHICS, INC. is a leading-edge technology company providing comprehensive RF/MW measurement services, and highly scalable, accurate, measurement-based models of RF/MW components. Over 500 models for passive and active devices and system-level components (representing over 10,000 individual parts) are now available in Modelithics libraries, which install as specialized design kits in multiple popular EDA software tools.


Download our video demonstration of the creation of a filter using Modelithics models in the AWR Microwave Office Program.  A pdf file of the example is also available.

See the article: "Accurate High Frequency Lumped Element Design with Discrete Optimization" PDF.

See the article: "Synthesize Filters With Wideband success" PDF

See the article: "A Design Flow for Rapid and Accurate Filter Prototyping" PDF

Further information about Modelithics is available on the web at www.modelithics.com.

See the article: "PDF


National Instruments Logo

AWR Corporation, the innovation leader in high-frequency EDA software now part of National Instruments, dramatically accelerate the design and product development cycle of high-frequency ICs and systems found within the aerospace/defense, semiconductor, computer, consumer electronics, and telecommunications markets by reducing the time it takes from concept thru to manufacturing, quickening the pace to market.  Integrated into Nuhertz software, the power of Nuhertz and AWR reaches new heights found nowhere else in the industry.

For exceptionally easy, fast, and accurate planar synthesis and optimizations using Nuhertz with the NI AWR Design Environment/AXIEM 3D planar EM simulator, see application note, Nuhertz ANAWR103 MiniHairpin Filter.pdf



Sonnet Software has been developing 3D planar EM software since 1983, and has earned a solid reputation as the world's most accurate commercial planar EM analysis package for single and multi-layer planar circuits and antennas.

Sonnet Software Inc., founded by Dr. James Rautio, is a private company, dedicated completely to the development of commercial EM software. Sonnet takes great pride in providing quality technical support for their products--which they believe to be very important for high-end technical software products.

For reference to Nuhertz simulation with Sonnet, review the application note: Application Note: anson102.pdf