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

fYear

2007

fDate

8-10 Oct. 2007

Firstpage

231

Lastpage

234

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Integrated Circuit Conference, 2007. EuMIC 2007. European

Conference_Location

Munich

Print_ISBN

978-2-87487-002-6

Type

conf

DOI

10.1109/EMICC.2007.4412691

Filename

4412691