Current on-chip filters are too big and non scalable
Developed for applications exceeding 30 GHz, this "combline" electromagnetic filter technology leverages the phase-change properties of Vanadium Dioxide (VO2) to adjust its passband frequency range dynamically. Heating VO2 creates a high-performance ground connection, reducing the electrical length of coupled transmission lines and thus shifting the passband to a higher frequency.
Miniature on-chip filters provide compact size, scalability and low insertion loss
This innovation addresses several challenges: it overcomes the limitations of acoustic wave filtering technology above 30 GHz, alleviates space constraints in millimeter wave (mmWave) array front-end electronics, and mitigates the high insertion loss associated with transistor-based switches in filter banks.
- Compact on-chip form factor
- Simple control requirements
- Scalability to more complex filter shapes and more bands
- Low insertion loss compared to other filtering options
- 5G communications systems that switch between different operating bands above 30 GHz
- 6G communications systems that require dynamic frequency band change
