Dual-band sub-1 V CMOS LNA for 802.11a/b WLAN applications

This paper presents the design and experimental results of a dual-band CMOS low noise amplifier (LNA), which can operate from a supply voltage as low as 0.7 V. A switched inductor technique is used. The LNA was fabricated in a standard 0.18 /spl mu/m CMOS process, and is designed to be used in a dual-band 2.4- and 5-GHz WLAN receiver. With a 1 V supply, the LNA exhibits a measured power gain and noise figure of S/sub 21/=11.6 dB and NF=2.3 dB for the 2.4 GHz band, and S/sub 21/=10.8 dB and NF=2.9 dB for the 5 GHz band.

[1]  Mourad N. El-Gamal,et al.  Gain and frequency controllable sub-1 V 5.8 GHz CMOS LNA , 2002, 2002 IEEE International Symposium on Circuits and Systems. Proceedings (Cat. No.02CH37353).

[2]  Behzad Razavi.  A 2.4-GHz CMOS receiver for IEEE 802.11 wireless LANs , 1999 .

[3]  T.K.K. Tsang,et al.  Gain controllable very low voltage (/spl les/ 1 V) 8-9 GHz integrated CMOS LNAs , 2002, 2002 IEEE Radio Frequency Integrated Circuits (RFIC) Symposium. Digest of Papers (Cat. No.02CH37280).

[4]  Ran-Hong Yan,et al.  5 GHz CMOS radio transceiver front-end chipset , 2000, 2000 IEEE International Solid-State Circuits Conference. Digest of Technical Papers (Cat. No.00CH37056).

[5]  Hossein Hashemi,et al.  Concurrent multiband low-noise amplifiers-theory, design, and applications , 2002 .

[6]  Mourad N. El-Gamal,et al.  A Sub-1-V 4-GHz CMOS VCO and a 12.5-GHz oscillator for low-voltage and high-frequency applications , 2001 .

[7]  Kwang-Eui Pyun,et al.  A low noise amplifier for a multi-band and multi-mode handset , 1998, 1998 IEEE Radio Frequency Integrated Circuits (RFIC) Symposium. Digest of Papers (Cat. No.98CH36182).

[8]  Rahul Magoon,et al.  A 2.7-V 900-MHz/1.9-GHz dual-band transceiver IC for digital wireless communication , 1999 .

[9]  Ken Leong Fong,et al.  Dual-band high-linearity variable-gain low-noise amplifiers for wireless applications , 1999 .

[10]  Mourad N. El-Gamal,et al.  Design of a 1.5 V CMOS integrated 3 GHz LNA , 1999, ISCAS'99. Proceedings of the 1999 IEEE International Symposium on Circuits and Systems VLSI (Cat. No.99CH36349).

[11]  K. O. Kenneth,et al.  Demonstration of a switched resonator concept in a dual-band monolithic CMOS LC-tuned VCO , 2001, Proceedings of the IEEE 2001 Custom Integrated Circuits Conference (Cat. No.01CH37169).

[12]  B. Razavi,et al.  A 900 MHz/1.8 GHz CMOS receiver for dual band applications , 1998, 1998 IEEE International Solid-State Circuits Conference. Digest of Technical Papers, ISSCC. First Edition (Cat. No.98CH36156).

[13]  T. Robinson,et al.  A highly integrated dual-band tri-mode transceiver chipset for CDMA TIA/EIA-95 and AMPS applications , 2000, 2000 IEEE Radio Frequency Integrated Circuits (RFIC) Symposium Digest of Papers (Cat. No.00CH37096).

[14]  Mourad N. El-Gamal,et al.  A very low-voltage (0.8 V) CMOS receiver frontend for 5 GHz RF applications , 2002, 2002 IEEE International Symposium on Circuits and Systems. Proceedings (Cat. No.02CH37353).