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   

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 is a market leader in providing 3D electromagnetic (EM) field simulation tools through a global network of sales and support staff and representatives. CST develops CST STUDIO SUITE, a package of high-performance software for the simulation of EM fields in all frequency bands and the design and analysis of antennas and RF components. Its growing success is based on a combination of leading edge technology, a user-friendly interface and knowledgeable support staff. CST solutions are used by market leaders in a diverse range of industries, including aerospace, automotive, defense, electronics, healthcare and telecommunications. CST is part of SIMULIA, a Dassault Systèmes brand. Further information about CST is available on the web at

Further information about CST is available on the web at


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

See the article: "PDF


National Instruments Logo

NI makes it possible for engineers and scientists to solve the world’s greatest engineering challenges with powerful, flexible technology solutions that accelerate productivity and drive rapid innovation. Customers from a wide variety of industries–from healthcare to automotive and from consumer electronics to particle physics–use NI’s integrated hardware and software platform to improve the world we live in.


Having acquired AWR Corporation in 2011, NI software solutions now include the NI AWR Design Environment platform that consists of RF/microwave electronic design automation (EDA) tools such as Visual System Simulator for system design, Microwave Office/Analog Office for microwave/RF circuit design, and AXIEM and Analyst for electromagnetic analysis. NI AWR software tools help design engineers to dramatically reduce development time and cost for components, circuits, systems and subsystems employed in wireless, high-speed wired, broadband, aerospace and defense, and electro-optical applications. Learn more at

For additional information on AWR Connected for Nuhertz filter synthesis solutions visit <> and for details on using Nuhertz with the NI AWR Design Environment/AXIEM 3D planar EM simulator review the application note  Nuhertz ANAWR103 MiniHairpin FilterV3.pdf .


View the Nuhertz-AWR IMS 2017 Video:
Optimized DMS Hairpin Filter Using Nuhertz With Microwave Office and AXIEM



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



Xpeedic Logo

In partnership with Xpeedic, Nuhertz FilterSolution synthesis software is empowered with Xpeedic’s proprietary three-dimensional full-wave electromagnetic solver technology.

About Xpeedic

Xpeedic develops and markets EDA software with leading-edge electromagnetic solver technology to enable  IC, package and system design engineers to develop better electronics product faster and more cost-effectively.