Technology suite for flexible efficient design and performance improvements for 5G hardware. Perfect for Massive MIMO antenna arrays.

As 5G emerges on the market, so too are technologies to facilitate its implementation. Yet, the majority of technologies available increase chip area requirements and have high power consumption.

University of Utah researchers have developed a delta-sigma modulated switched capacitor transmitter, frequency tunable digital power amplifiers, and a multiphase beam steering transmitter ideal for 5G applications. This digitally tunable and scalable modular approach allows flexible hardware configuration, such as placing components at the antenna, improving overall efficiencies.

Benchtop Prototype

Delta-sigma modulated switched capacitor transmitter:

• Hybrid-SCPA allows higher bandwidth and resolution compared to traditional Nyquist-DAC architectures.
• Enables smaller array size without resolution tradeoffs.

Frequency tunable digital power amplifier:

• Enables peak performance at digitally programmable frequencies.
• Achieves high performance with a single output network.

Multiphase beam steering transmitter:

• Beamforming synthesized from direct digital input.
• Does not require lossy phase shifters to achieve output beamsteering.
• Small overall size, high efficiency.

Xu, Q., Gupta, S., Azam, A., Bai, Z., & Walling, J. S. (2018). A Hybrid ΔΣ/Nyquist Rate Switched Capacitor Power Amplifier in 65nm CMOS. 2018 IEEE 61st International Midwest Symposium on Circuits and Systems (MWSCAS). doi: 10.1109/mwscas.2018.8623974

Publication Number: US-2020-0044615-A1
Patent Title: Apparatuses and Methods for Hybrid Switched Capacitor Array Power Amplifiers
Jurisdiction/Country: United States
Application Type: Non-Provisional

Jonathan Tyler
801-587-0515
jonathan.tyler@utah.edu