A 460MHz∼870MHz CMOS wideband low noise amplifier for DVB-T

Author

Huang, ChienTsung ; Chen, ChungChun ; Tsao, HenWai

Author_Institution

Grad. Sch. of Electron. Eng., Nat. Taiwan Univ., Taipei

fYear

2008

fDate

23-25 April 2008

Firstpage

47

Lastpage

50

Abstract

This paper focuses on a wideband low noise amplifier (LNA) for DVB-T fabricated with the TSMC 0.18 mum CMOS process. The proposed wideband LNA, from 460 MHz to 870 MHz, achieves a wideband and flat gain property by using the resistive feedback technique. Compared with other wideband LNAs, the proposed circuit can achieve a flatter gain curve, a flatter IIP3 in band, and a small chip area. The overall power gain of the proposed LNA is 21.5 dB to 21.8 dB. It simply varies 0.3 dB in band. Sll is smaller than -12.7 dB, and S22 is smaller than -12 dB. Noise Figure (NF) is 3 dB~4.7 dB, and IIP3 is -5 dBm~-5.6 dBm in band.

Keywords

CMOS integrated circuits; digital video broadcasting; low noise amplifiers; wideband amplifiers; CMOS wideband low noise amplifier; DVB-T; TSMC CMOS process; bandwidth 460 MHz to 870 MHz; flat gain property; noise figure; resistive feedback; Broadband amplifiers; CMOS technology; Circuits; Digital TV; Digital video broadcasting; Feedback; Impedance matching; Low-noise amplifiers; Resistors; Wideband;

fLanguage

English

Publisher

ieee

Conference_Titel

VLSI Design, Automation and Test, 2008. VLSI-DAT 2008. IEEE International Symposium on

Conference_Location

Hsinchu

Print_ISBN

978-1-4244-1616-5

Electronic_ISBN

978-1-4244-1617-2

Type

conf

DOI

10.1109/VDAT.2008.4542409

Filename

4542409