The communication industry is faced with a challenge concerning future wireless communication systems. Since the demand on frequency spectrum resources is increasing, wireless communication systems have to deal with coexistence and interference problems. Ever-evolving communication standards and the need for multi-standard communication devices to keep pace with these developments make digitally tunable bandpass filters essential.
The tunable bandpass filters developed by Fraunhofer IIS reliably select the required frequency spectrum while rejecting out-of-band signals. They are digitally tunable and can be reconfigured even during operation, which decreases latency and allows for dynamic spectrum access.
We develop tunable bandpass filters for a wide range of applications in the fields of automotive, mobile communication, public safety, the Internet of Things (IoT), and program making and special events (PMSE). Furthermore we provide technical feasibility studies and development of prototypes for various frequencies in the microwave range.