학술논문

GaAs Balanced Amplifier for Ka-Band Space Communications System
Document Type
Conference
Source
2018 48th European Microwave Conference (EuMC) Microwave Conference (EuMC), 2018 48th European. :1281-1284 Sep, 2018
Subject
Aerospace
Communication, Networking and Broadcast Technologies
Components, Circuits, Devices and Systems
Fields, Waves and Electromagnetics
Power, Energy and Industry Applications
Signal Processing and Analysis
Transportation
Stability analysis
Circuit stability
Gain
Bandwidth
Transistors
Gallium arsenide
Noise figure
Balanced amplifier
dynamic range
GaAs technology
Ka-band
Space technology
Language
Abstract
The paper deals with the development of a state-of-the-art medium level amplifier able to combine good noise performance with a high PldB compression point. The MMIC is realized with a balanced structure and making use of the PH25 GaAs pHEMT process provided by UMS. The balanced structure allows to achieve a gain of 19 dB with a PldB compression point greater than 15 dBm and a noise figure of about 3 dB in a large bandwidth spanning from 26.5 GHz to 31.5 GHz. The chip has a single bias pad; the input and output bond wires are directly matched on chip, so easingenhancing the mechanical integration in the front-end.