Title :
A 0.1-1.7 GHz, 1.1dB NF low noise amplifier for radioastronomy application
Author :
Lintignat, J. ; Darfeuille, S. ; Barelaud, B. ; Billonnet, L. ; Jarry, B. ; Meunier, P. ; Gamand, P.
Author_Institution :
Univ. de Limoges, Limoges
Abstract :
In this paper, a fully-differential low noise amplifier based on a classical cascode topology enhanced with noise cancelling technique is presented. This circuit achieves a 0.1-1.7 GHz bandwidth. The chip surface is less than 0.8 mm2. Measured circuit gain is greater than 18 dB and the 3 dB bandwidth is reached for a frequency of 18 GHz. The achieved noise figure is as low as 1.1 dB at 250 MHz and is lower than 1.3 dB all over the passband. This chip has been implemented using NXP QUBlC4G SiGe BiCMOS process.
Keywords :
low noise amplifiers; radioastronomical techniques; NXP QUBlC4G SiGe BiCMOS process; bandwidth 0.1 GHz to 1.7 GHz; classical cascode topology; frequency 18 GHz; frequency 250 MHz; fully-differential low noise amplifier; noise cancelling technique; noise figure 1.1 dB; radioastronomy application; Bandwidth; Circuit noise; Circuit topology; Frequency measurement; Gain measurement; Low-noise amplifiers; Noise cancellation; Noise figure; Noise measurement; Semiconductor device measurement; Amplifier; Broadband; Differential; Index Terms; Low Noise; Mixed-mode;
Conference_Titel :
Microwave Integrated Circuit Conference, 2007. EuMIC 2007. European
Conference_Location :
Munich
Print_ISBN :
978-2-87487-002-6
DOI :
10.1109/EMICC.2007.4412691
