FSF-series Glass based SIW Filter
FSF series chip-level substrate integrated waveguide (SIW) filter is manufactured on DWMicrowave’s semiconductor process with glass substrate, which offers higher frequency band and better unloaded Q factor compared to silicon substrate.
DWMicrowave currently offers four filter product series designed for different frequency bands and performance requirements. Among these, the ZeroGuide series is currently under development, while the rest are already in mass production. Their microwave performance and cost are detailed in the figure below.
As shown in the figure above, the FSF-series filters are suitable for applications ranging from 20 GHz to 60 GHz, featuring extreme low insertion loss.
Customized semiconductor process flow
Manufactured on semiconductor process, very high microwave performance consistency. Filters can be customized to meet specific user requirements
Excellent PIM performance
By replacing the nickel with non-magnetic metal, The DWMicrowave’s FSF series filters provide outstanding PIM performance, which is close to the waveguide filters.
Suitable for airtight and vacuum environments
The DWMicrowave’s FSF series filters, manufactured by specialized semiconductor process, are free from organic polymers, completely avoiding the out-gassing issues and are especially suitable for airtight or vacuum applications.
Very low temperature drift
FSF series filter offers very low temperature drift. The table below provides the temperature coefficient of frequency (TCF) of the 21-23GHz FSF series filters.
Below are the basic parameters of the FSF22B2N5 filter. For the more detailed datasheet and S-parameter files, please contact us.
FSF22B2N5
Electrical Specifications
Data is measured with 2 wirebonds with approximately 25μm diameter, 50μm height, on the DWMicrowave test board. Test board is connected to VNA with 2.4mm connectors. The connector and coaxial cables are deembedded.
Typical Performance
Mechanical Drawing
In the top view above, the shaded areas are for wire-bonding. Outline dimensions are given below, unit is millimeter.
For datasheets and S2P files of other chip models, please also contact us.