Electronic Design

HF Design Suite Integrates Filter Design Tool

The Microwave Office high-frequency design suite now integrates what’s claimed as a breakthrough in filter design from its partner Nuhertz Technologies. Nuhertz’s filter synthesis and analysis software, Nuhertz Filter, offers what’s termed “delay equalization with off-axis quadruplet and real zeros,” which reduces from hours to seconds the computation time required to obtain flat group delay response in quadruplet-zeros-delay-equalized lumped element filters.

Obtaining a flat group delay response to ensure that all frequencies arrive at the same time within a filter's passband is one of the most critical aspects of good filter design, and is essential to obtaining distortion-free performance. Controlling group delay efficiently has been a major challenge for industry and academia for decades and many advancements and algorithms have been developed to more efficiently control group delay in band-pass filters by cross-coupling resonators.

However, low-pass and high-pass filters require massive, time-consuming computer optimizations to synthesize the required component values when efficient quadruplet zeros are employed. Nuhertz Technologies has developed a direct-synthesis strategy for determining the element values that control low-pass or high-pass, quadruplet-zeros-controlled group delay that dramatically reduces computation time while eliminating unnecessary circuit components that result from traditional equalization techniques. Nuhertz Filter, and the stand-alone version Filter Solutions, is currently the only filter synthesis software to provide this capability, and Microwave Office software is the only high-frequency design environment in which it can be directly integrated. Nuhertz Filter software functions seamlessly within the Microwave Office design suite so it is simple for engineers to learn and use.

Contact AWR directly for pricing and delivery information on Microwave Office with Nuhertz Filter.


Nuhertz Technologies

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