Background
Radio frequency (RF) systems are used in a wide variety of applications including telecommunications, remote sensing, and navigation. Typical RF systems are configured with various architectures on the front-ends and other receivers. Reconfigurable RF systems have been recently studied for their potential to support a variety of applications using the same hardware and utilizing programmability and reconfigurability to support the requirements of each application as needed. However, these systems require tunable front-end filters that can pass the desired frequency band while stopping the undesired signal and noise at other bands, which can be difficult to achieve.
Invention Description
Researchers at Arizona State University have developed truly tunable phased array transceiver filters that reduce the burden on receiver sensitivity and transceiver dynamic range. This technology allows adaptive filtering based on finite-impulse-response filters with creative utilization of the phased array components, and reuse of the delay lines inherently present in phased array systems. These filters reduce the layout area and improve the bandwidth and tunability for enhanced adaptive operation and reconfigurability.
Potential Applications:
- Cellular applications (e.g., base stations, access points)
- Defense communication & radar
- Commercial wireless communication
- Sensing & ranging systems
Benefits and Advantages:
- Enhanced bandwidth and tunability
- Reduced layout area
- Efficient power consumption
- Improved dynamic range