Microstrip design of low noise amplifier for application in narrowband and wideband

Author

Challal, M. ; Azrar, A. ; Bentarzi, H. ; Janvier, D. Vanhoenacker

Author_Institution

Dept. Electr. Eng. & Electron., Univ. of Boumerdes, Boumerdes

fYear

2008

fDate

7-9 Nov. 2008

Firstpage

1

Lastpage

4

Abstract

A low-noise amplifier (LNA) is presented in this paper. The LNA is designed and optimized for narrowband and wideband operations along with minimum noise figure around 24 GHz (K-band). The designed LNA employs microstrip input and output matching networks; it achieves a noise figure of 3.85 dB and 10.55 dB of gain along with 10.27 dB and 17.83 dB of input and output return losses, respectively for its narrow band. Where as for its wideband it accomplishes a gain of 6.5 dB with plusmn0.3 dB flatness from 24 to 25.25 GHz wideband frequency range, the noise figure obtained for the presented LNA is in close proximity to the minimum noise figure over 23 - 24.5 GHz frequency range.

Keywords

low noise amplifiers; microstrip circuits; microwave amplifiers; wideband amplifiers; K-band; frequency 23 GHz to 24.5 GHz; gain 10.55 dB; low noise amplifier; matching networks; microstrip design; microwave amplifier; narrowband operations; noise figure 3.85 dB; wideband operations; Broadband amplifiers; Design optimization; Frequency; Gain; K-band; Low-noise amplifiers; Microstrip; Narrowband; Noise figure; Wideband; Low Noise Amplifier (LNA); Microstrip Matching Networks; NarrowBand (NB) and WideBand (WB);

fLanguage

English

Publisher

ieee

Conference_Titel

Signals, Circuits and Systems, 2008. SCS 2008. 2nd International Conference on

Conference_Location

Monastir

Print_ISBN

978-1-4244-2627-0

Electronic_ISBN

978-1-4244-2628-7

Type

conf

DOI

10.1109/ICSCS.2008.4746950

Filename

4746950