DocumentCode :
3003212
Title :
Design of a novel dual-band concurrent CMOS LNA with current reuse topology
Author :
Kargaran, Ehsan ; Madadi, Bahman
Author_Institution :
Sadjad Inst. for Higher Educ., Mashhsd, Iran
fYear :
2010
fDate :
11-12 June 2010
Firstpage :
386
Lastpage :
388
Abstract :
This paper presents a novel dual-band concurrent fully integrated low noise amplifier (LNA) with current reuse topology for W-LAN IEEE 802.11b/g/a standards. A general methodology for the design of concurrent LNAs is provided that makes it possible to achieve simultaneous narrowband gain and matching at multiple frequencies. Furthermore, the use of a concurrent topology enables saving important die area and power consumption compared to the parallel solution that employs two separated LNAs. A fully integrated dual band LNA was designed using 0.18μm CMOS process. The LNA provides narrow-band gain and matching at 2.4GHz and 5.2GHz bands, simultaneously. At 2.4GHz, the LNA exhibits a noise figure of 2.5dB, a voltage gain of 21 dB and input matching of -12.7dB. However, the LNA at 5.2GHz features a noise figure of 2.4dB, a voltage gain of 12.5dB and a and input matching of -17.4dB. The power consumption is 10mW under a power supply voltage of 1.8V. The designed system demonstrates relatively suitable response in Variation 10% supply voltage.
Keywords :
CMOS analogue integrated circuits; integrated circuit design; low noise amplifiers; network topology; wireless LAN; WLAN IEEE 802.11a; WLAN IEEE 802.11b; WLAN IEEE 802.11g; current reuse topology; dual band concurrent CMOS LNA; dual band concurrent fully integrated low noise amplifier; power consumption; power supply voltage; size 0.18 mum; Design methodology; Dual band; Energy consumption; Impedance matching; Low-noise amplifiers; Narrowband; Noise figure; Topology; Voltage; Wireless LAN; Concurrent dual-band operation; current reuse topology; input/output matching network design; low-noise amplifier;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Networking and Information Technology (ICNIT), 2010 International Conference on
Conference_Location :
Manila
Print_ISBN :
978-1-4244-7579-7
Electronic_ISBN :
978-1-4244-7578-0
Type :
conf
DOI :
10.1109/ICNIT.2010.5508490
Filename :
5508490
Link To Document :
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