Iranian Researchers Develop Next-gen High-Frequency Chip

Wednesday, August 30, 2017 - 10:28

Iranian researchers have developed a high-frequency electronic chip potentially capable of transmitting tens of gigabits of data per second.

Phys.org reported that Omeed Momeni, an assistant professor of electrical and computer engineering at UC Davis, and doctoral student Hossein Jalili designed the chip using a phased array antenna system. Phased array systems funnel the energy from multiple sources into a single beam that can be narrowly steered and directed to a specific location.

The chip prototyped by Momeni and Jalili successfully operates at 370 GHz with 52 GHz of bandwidth. For comparison, FM radio waves broadcast between 87.5 and 108 MHz; 4G and LTE cellular networks generally function between 800 MHz and 2.6 GHz with up to 20 MHz of bandwidth.

"Theoretically, 4G cellular networks have reached their data rate limit," Momeni said. "As we continue to migrate to systems like cloud computing and next generation cellular networks, the need for speed is growing. Higher frequencies mean more bandwidth and more bandwidth means higher data rate."

In future work, Momeni plans to integrate the chip into imaging and communication systems. The research was supported by a five-year National Science Foundation CAREER grant awarded to Momeni. The ongoing project is titled "Scalable Traveling and Standing Wave Structures for High-Power and High-Efficiency Terahertz and mm-Wave Radiator and Phased Array Systems."

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