Programmable Electromagnetic Surfaces Based on Ferroelectric and Antiferroelectric Hafnium Zirconium Oxide Films and Graphene for Terahertz Communications and Sensing
Abstract
Programmable electromagnetic surfaces (PES), also known as recon�gurable intelligent surfaces (RIS) or intelligent reflecting surfaces (IRS), are the enabler of key transformative applications relevant to the US Air Force. On the one hand, PES can be utilized to enhance wireless communications by enabling the manipulation of the direction and shape of electromagnetic signals as they propagate. On the other hand, PES can be utilized to mislead radar sensing systems. The applications of PES become even more critical at terahertz (THz) band frequencies (between 100 GHz and 10 THz) but, unfortunately, as of today, the functionality of THz PES is very limited. A PES generally consists of an array of elements whose reflection coefficient can be adjusted at least in phase, and ideally also in amplitude. Common techniques utilized for phase and amplitude control at lower frequencies cannot be re-utilized at frequencies above 100 GHz. This project will contribute to the USA efforts at spectrum dominance beyond 5G, increasing the reliability and security of terahertz wireless communications and sensing systems.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Feb 29, 2024
- Source ID
- FA95502310254
Entities
People
- Josep Jornet
Organizations
- Air Force Office of Scientific Research
- Northeastern University
- United States Air Force