Title :
A high-gain low-power balun-LNA for 6–9GHz UWB system
Author :
Zhi Li ; Liguo Sun ; Lu Huang
Author_Institution :
Dept. of Electron. Eng. & Inf. Sci., Univ. of Sci. & Technol. of China, Hefei, China
Abstract :
This paper presents a balun-LNA for 6-9GHz UWB system. The LNA uses common-gate (CG) stage before active balun stage for input matching, also it utilizes current reuse technology to reduce power consumption. Capacitor-cross-coupled (CCC) buffer is cascaded to improve the differential signal amplitude and phase balance. The balun-LNA is designed and fabricated by a standard 0.13-μm CMOS technology. This balun-LNA can achieve differential gain above 22dB from 6.5GHz to 9.0GHz with 5.5mA current consumption under a 1.3-V supply. The core area of the LNA is 0.53mm2. The noise figure of the LNA is under 3.2dB.
Keywords :
CMOS analogue integrated circuits; MMIC amplifiers; baluns; field effect MMIC; field effect analogue integrated circuits; impedance matching; low noise amplifiers; ultra wideband technology; CMOS technology; UWB system; active balun stage; capacitor cross coupled buffer; common gate stage; current 5.5 mA; current reuse technology; differential signal amplitude; frequency 6 GHz to 9 GHz; high gain balun-LNA; input matching; low noise amplifier; low power balun-LNA; phase balance; reduce power consumption; size 0.13 mum; voltage 1.3 V; Impedance matching; Microwave amplifiers; Noise; Noise figure; Power demand; Simulation; Wideband; CCC buffer; CG amplifier; balun-LNA; current reuse;
Conference_Titel :
Microwave Conference Proceedings (APMC), 2013 Asia-Pacific
Conference_Location :
Seoul
DOI :
10.1109/APMC.2013.6695114
