Title :
A 5GHz to 6GHz integrated differential LNA
Author :
Lim, Wei Meng ; Ma, Jian Guo ; Do, Manh Anh ; Yeo, Kiat Seng
Author_Institution :
Sch. of Electr. & Electron. Eng., Nanyang Technol. Univ.
Abstract :
This paper presents the design and post-layout simulation results of an integrated differential LNA in a 0.18 mum CMOS process, which operates in the frequency bands of 5 GHz to 6 GHz. It utilizes two cascode stage amplifiers, cascaded with a phase splitter to achieve a differential signal. From a 1.5 V supply, the circuit exhibits a gain flatness of 13 dB with less than 0.08 dB variations within its 1 GHz bandwidth. The LNA has a 50Omega NF of 2.9 dB to 3.6 dB between 5 GHz and 6 GHz. The gain and phase differences between its two outputs are only 0.04 dB and 1800 plusmn 0.30 respectively
Keywords :
CMOS integrated circuits; cascade networks; differential amplifiers; transceivers; 0.18 micron; 1 GHz; 1.5 V; 1.9 to 3.6 dB; 5 to 6 GHz; 50 ohm; CMOS process; cascade; cascode stage amplifiers; integrated differential LNA; phase splitter; post-layout simulation; wireless transceiver; Bandwidth; CMOS process; CMOS technology; Circuit simulation; Design engineering; Differential amplifiers; Frequency; Impedance matching; Noise measurement; Transceivers;
Conference_Titel :
Circuits and Systems, 2005. ISCAS 2005. IEEE International Symposium on
Conference_Location :
Kobe
Print_ISBN :
0-7803-8834-8
DOI :
10.1109/ISCAS.2005.1465710
