Title :
Design of a 20MHz-3GHz Broadband Low Noise Amplifier
Author :
Chen, Lei ; Guo, Jun ; Lu, Ji-Hua
Author_Institution :
Sch. of Inf. Eng., Beijing Univ. of Posts & Telecommun., Beijing, China
Abstract :
We introduce mainly the design of LNA (low noise amplifier) using the theory of mismatch compensation. The design target is expanded and stability of transistor is analyzed through the K factor. Using the powerful function of the ADS (Advanced Design System) software, it introduces in detail the designing process of the desired amplifier. LNA with operating frequency from 20 MHz to 3 GHz is designed in this paper, and two-stage amplifier is used in the design. The other targets are noise figure less than 1.5 dB, gain more than 30 dB, gain flatness less than ±2.5 dB, voltage standing wave ratio (VSWR) less than 2:1.
Keywords :
low noise amplifiers; wideband amplifiers; K factor; advanced design system software; broadband low noise amplifier; frequency 20 MHz to 3 GHz; mismatch compensation; voltage standing wave ratio; Broadband amplifiers; Frequency; Gain; Low-noise amplifiers; Power amplifiers; Process design; Software design; Software systems; Stability analysis; Transistors;
Conference_Titel :
Computational Intelligence and Software Engineering, 2009. CiSE 2009. International Conference on
Conference_Location :
Wuhan
Print_ISBN :
978-1-4244-4507-3
Electronic_ISBN :
978-1-4244-4507-3
DOI :
10.1109/CISE.2009.5362745
