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 enhance the capabilities of transceiver units in terms of frequency selectivity, flexibility, and agility. The modules 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. The reconfigurable bandpass filters are designed to replace conventional filter banks within RF front ends.
We develop tunable bandpass filters for a wide range of applications in the fields of mobile communication, public safety, the Internet of Things (IoT) and satellite communication.