Title :
Design of a Ka-band monolithic low noise amplifier
Author :
Haodong Lin;Weichuan Zhang;Jun Dong;Hao Peng;Yu Liu;Ziqiang Yang;Tao Yang
Author_Institution :
School of Electronic Engineering, University of Electronic Science and Technology of China, Chengdu Sichuan Province, China, 611731
Abstract :
A Ka-band monolithic low noise amplifier (LNA) has been designed using a 0.1-μm gate length InGaAs pseudomorphic high electron-mobility transistor (pHEMT) process. The source inductors are adjusted to achieve best tradeoff among gain, return loss and noise figure. And the matching network is also carefully designed to get a compact chip size (1.4mm×0.75mm) besides keeping the circuit stable in lower frequency band than operating band. The simulated results of this chip show a gain of more than 13.1dB, a noise figure of less than 2.35dB, an input return loss of greater than 18dB, and an output return loss of greater than 18dB in the frequency range of 32.5 to 36.5GHz.
Keywords :
"Noise figure","Inductors","Circuit stability","Stability analysis","PHEMTs","Millimeter wave radar","Microwave amplifiers"
Conference_Titel :
Advanced Information Technology, Electronic and Automation Control Conference (IAEAC), 2015 IEEE
Print_ISBN :
978-1-4799-1979-6
DOI :
10.1109/IAEAC.2015.7428541
