학술논문

GaN Technology for E, W and G-Band Applications
Document Type
Conference
Source
2014 IEEE Compound Semiconductor Integrated Circuit Symposium (CSICS) Compound Semiconductor Integrated Circuit Symposium (CSICs), 2014 IEEE. :1-4 Oct, 2014
Subject
Communication, Networking and Broadcast Technologies
Components, Circuits, Devices and Systems
Fields, Waves and Electromagnetics
Photonics and Electrooptics
Gallium nitride
Power amplifiers
Performance evaluation
HEMTs
MMICs
Linearity
Power generation
Language
ISSN
1550-8781
2374-8443
Abstract
Highly scaled GaN T-gate technology offers devices with high ft/fMAX, and low minimum noise figure while still maintaining high breakdown voltage and high linearity typical for GaN technology. In this paper we report an E-band GaN power amplifier (PA) with output power (Pout) of 1.3 W at power added efficiency (PAE) of 27% and a 65-110 GHz ultra-wideband low noise amplifier (LNA). We also report the first G-band GaN amplifier capable of producing output power density of 296mW/mm at 180 GHz. All these components were realized with a 40 nm T-gate process (ft= 200 GHz, fMAX= 400 GHz, Vbrk > 40V) which can enable the next generation of transmitter and receiver components that meet or exceed performance reported by competing device technologies while maintaining > 5x higher breakdown voltage, higher linearity, dynamic range and RF survivability.