论文信息 - A 1.8V 2.4GHz CMOS on-chip impedance matching low noise amplifier for WLAN applications

A 1.8V 2.4GHz CMOS on-chip impedance matching low noise amplifier for WLAN applications

A 1.8V, 2.4GHz CMOS on-chip impedance matching low noise amplifier for WLAN applications is presented. Its input and output are all matched to 50ohms without any off-chip components. The low noise amplifier could work in two modes: high gain and low gain, the gain could be controlled to get better signal-to-noise ratio performance. The amplifier has been implemented in 0.18/spl mu/m CMOS process. The measured results show that the amplifier achieves 4.0dB noise figure, 12.0dB power gain, -13dBm input 1dB compression point and -2dBm third-order input intercept point, while drawing 7.94mA current from a 1.8V power supply (high gain mode) or -11.5dB power gain with almost no current consumption (low gain mode). The die area is only 0.97 /spl times/ 0.88 mm/sup 2/.

Bingxue Shi | Baoyong Chi

[1] Qiuting Huang,et al. GSM transceiver front-end circuits in 0.25-/spl mu/m CMOS , 1999 .

[2] Ali M. Niknejad,et al. Analysis, design, and optimization of spiral inductors and transformers for Si RF ICs , 1998, IEEE J. Solid State Circuits.

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

[4] B. Razavi. A 2 . 4-GHz CMOS Receiver for IEEE 802 . 11 Wireless LAN ’ s , 1999 .

[5] D. Edelstein,et al. RF circuit design aspects of spiral inductors on silicon , 1998, 1998 IEEE International Solid-State Circuits Conference. Digest of Technical Papers, ISSCC. First Edition (Cat. No.98CH36156).

[6] J. L. Pennock. Bipolar and MOS analog integrated circuit design , 1984 .

[7] Robert G. Meyer,et al. A 1-GHz BiCMOS RF front-end IC , 1994, IEEE J. Solid State Circuits.

[8] Qiuting Huang,et al. A 20-mA-receive, 55-mA-transmit, single-chip GSM transceiver in 0.25-μm CMOS , 1999, IEEE J. Solid State Circuits.

[9] Thomas H. Lee,et al. The Design of CMOS Radio-Frequency Integrated Circuits: RF CIRCUITS THROUGH THE AGES , 2003 .

[10] A. Niknejad,et al. Analysis , Design , and Optimization of Spiral Inductors and Transformers for Si RF IC ’ s , 1998 .