Georgia Tech inventors are introducing Ultra-Massive Multiple Input Multiple Output (UM MIMO) communication as a way to increase the communication distance and the achievable capacity of THz-band communication networks. The very small size of THz plasmonic nano-antennas, which leverage the properties of nano-materials and meta-materials, enables the development of very large plasmonic arrays in very small footprints. For frequencies in the 0.06–1 THz range, meta-materials enable the design of plasmonic antenna arrays with hundreds of elements in a few square centimeters (e.g., 144 elements in 1 cm2 at 60 GHz). In the 1 to 10 THz band, graphene-based plasmonic nano-antenna arrays with thousands of elements can be embedded in a few square millimeters (e.g., 1024 elements in 1 mm2 at 1 THz). The resulting arrays can be utilized both in transmission and in reception (e.g., 1024x1024 UM MIMO at 1 THz) with a graphene-based plasmonic nano-transvceiver to support different modes, from razor-sharp UM beam-forming to UM spatial multiplexing, as well as multi-band communication schemes. Communication in the THz band can drastically increase the capacity of current wireless systems and enable a plethora of new applications in many realms. UM MIMO communication is necessary to increase the communication distance at THz frequencies over at least several tens of meters.
- Supports wireless data rates up to several Tbps (more than two orders of magnitude of existing wireless communication technologies)
- Enables Tbps transmissions over distances up to several tens of meters at least one order of magnitude more than with single THz transceivers/antennas
- Enables integration of its arrays in any type of personal and mobile communication device
- Supports dynamic tuning of resonant frequency of antennas via use of graphene
- Generates a multiband transmission with a single plasmonic nano-antenna array
- Terabit Wireless Personal Area Networks
- Terabit Wireless Local Area Networks
- 5G and 5G+ Cellular Networks
- Secure Communications for Military and Defense
Internet of Nano-Things
The increasing demand for higher bandwidth and higher speed wireless communication motivates the exploration of higher frequency bands. The Terahertz (THz) band (0.06–10 THz) is envisioned as one of the key players to meet the demand for such higher bandwidth and data rates. However, the available bandwidth at THz frequencies comes with the cost of a much higher propagation loss. Due to the power limitations of compact solid-state THz transceivers, this results in very short communication distances of approximately one meter.