Recent News:

FilResaerch to Release QuickFilter 1.0 in Q1 2011

FilSynth 2.0 Demo version is now available for download !

FilResearch released FilSynth 2.0 in December 2008 - Vista & Windows 7 ready !

FilSynth Presents New Waves in Microwave Journal March 2007 Issue

FilResearch has released its flagship product FilSynth 2.0 for microwave filter/multiplexer design, synthesis and analysis in December 2008. FilSynth is designed for RF engineers to perform the microwave filter, multiplexer design from the initial requirement to final electrical parameters and design report through streamline pole-zero analysis, synthesis and analysis by simply just clicks of the computer mouse. FilSynth can handle all types of passive microwave filter designs with essentially no limitation, including bandpass filter, bandstop filter, lowpass filter and highpass filter.

FilSynth 2.0 can now synthesis and design of multiple filters and multiplexers including Individual filter, Star type multiplexer, Common resonator type multiplexer, Manifold type multiplexer, Shunt connected multi-band filters and Cascaded filters. Individual filters can be directly synthesized, while the multiplexer design is achieved by pole-zero approximation and optimizations.

FilSynth includes the accurate frequency responses of the designed filter due to the finite unloaded Q effects at pole-zero approximation phase. Therefore designers will never need to go back and forth between synthesis and pole-zero analysis tasks again during the product design. For bandpass filters design, FilSynth provides the advanced N+2 coupling matrix configurations. The coupling matrix of the designed filter of the desired topology can be obtained instantly by synthesis window. The notches of the bandstop filter can be placed freely within the stopband, and the design parameters including coupling and transmission lengths are synthesized analytically. Lowpass and highpass filters are in standard ladder network type and the design parameters are provided in commonly used L, C type so that they can be  realized by different type chosen by designer. 

User can achieve the same design by synthesis through the optimization task from pole-zero analysis response, or obtain the parameters of the unknown filter by curve-fitting from the measured frequency responses. Analysis function allows designer to perform the post analysis and prototype tuning and trouble shooting seamlessly.

FilSynth has extremely graphical user friendly interface including network analyzer like response display, convenient zoom in/out function, marker function, circuit diagram view, et al. Power plot window helps designer analyzing the power handling capability of the designed filter. FilSynth 2.0 includes a new convenient filter calculator function – FilCalc. User can activate this function any time during the design to perform some quick calculation.

FilSynth is the only commercially available microwave filter design software that bridges the gap between the microwave engineering and EM simulation software. FilSynth provides the filter design tool meeting you today and tomorrow's needs. 

For more information about FilSynth, please visit our PRODUCTS page.