0.9–10GHz low noise amplifier with capacitive cross coupling

Author

Hu, Boyu ; Yu, Xiaopeng ; HE, Lenian

Author_Institution

Inst. of VLSI Design, Zhejiang Univ., Hangzhou, China

Volume

1

fYear

2010

fDate

20-23 Sept. 2010

Firstpage

1

Lastpage

4

Abstract

This paper presents a 0.9GHz-10GHz Ultra Wideband Low Noise Amplifier (LNA) designed for software-defined-radios (SDR). Capacitive cross coupling (CCC) is used at both input stage and cascade stage for wideband input impedance matching and small noise figure (NF). A combination of inductor peaking load and series inductor between the cascade stages of LNA is employed for a flat gain and enhanced input matching. This LNA is implemented in a standard 0.18μm CMOS technology. For 0.9GHz-10GHz ultra wideband applications, it achieves a maximum gain of 14dB, 3.5dB~4.1dB NF and +1.8dBm IIP3. It consumes only7.6mW from a 1.8V power supply.

Keywords

CMOS integrated circuits; MMIC amplifiers; field effect MMIC; impedance matching; low noise amplifiers; software radio; CMOS technology; capacitive cross coupling; cascade stage; frequency 0.9 GHz to 10 GHz; gain 14 dB; impedance matching; inductor peaking load; input stage; low noise amplifier; noise figure 3.5 dB to 4.1 dB; power 7.6 mW; size 0.18 mum; software-defined-radio; voltage 1.8 V;

fLanguage

English

Publisher

ieee

Conference_Titel

Ultra-Wideband (ICUWB), 2010 IEEE International Conference on

Conference_Location

Nanjing

Print_ISBN

978-1-4244-5305-4

Electronic_ISBN

978-1-4244-5306-1

Type

conf

DOI

10.1109/ICUWB.2010.5615747

Filename

5615747