Digitally Tunable RF Bandpass Filters

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.

Customization of directly available bandpass filters

In the range from 220 to 1400 MHz customer-specific adjustments to the RF bandpass filters are possible on request.

Beyond that we provide the following services for various frequencies in the microwave range:

Consulting and evaluation

We carry out requirement analyses and technical feasibility studies in order to find the solution that fits your needs. As part of this process, we provide evaluation boards for performance testing.

Development

We offer customization and further development of prototypes according to your individual requirements.