6G • RAN
Integrated Photonic Beamformer
Silicon Photonics True-Time Delay Chip
Microchips that steer ultra-high-frequency radio beams using optical waveguides and laser phase shifters on silicon photonics dies.
Technical Explanation
At Sub-THz and THz frequencies, traditional copper transmission lines suffer from massive attenuation and dielectric losses. Integrated Photonic Beamformers convert incoming high-frequency RF signals into optical laser beams on a tiny silicon chip. Optical delay lines and ring resonators steer the beam in the optical domain with zero frequency dispersion before converting it back to RF at the antenna feed, enabling razor-sharp beamforming with negligible power loss.
Key Functions
- Silicon photonics microchips executing broadband beam steering in the optical domain
- Zero dielectric RF transmission losses compared to traditional copper PCB traces
- Ultra-broadband True Time Delay operation without beam squint across 50+ GHz channels
- Microscopic chip integration suitable for mobile smartphones, AR glasses, and satellites
- Extremely high electromagnetic interference (EMI) immunity within dense circuit boards
Specifications
IEEE Journal of Selected Topics in Quantum Electronics, 6G Hardware Consortium
Interfaces
Opto-RF-DiePhotonic-Array
Related 6G Concepts
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