Title :
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
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);
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
DOI :
10.1109/ICSCS.2008.4746950
