Concurrent multiband low-noise amplifiers -- theory, design, and applications
The concept of concurrent multiband low-noise-amplifiers (LNAs) is introduced. A systematic way to design concurrent multiband integrated LNAs in general is developed. Applications of concurrent multiband LNAs in concurrent multiband receivers together with receiver architecture are discussed. Experimental results of a dual-band LNA implemented in a 0.35-μm CMOS technology as a demonstration of the concept and theory is presented.
© Copyright 2002 IEEE. Reprinted with permission. Manuscript received May 28, 2001. [Posted online: 2002-08-07] This work was supported by Conexant Systems and by NSF-ERC. The authors would like to thank members of the Caltech High-Speed Integrated Circuits (C.H.I.C.) and Microwave and RF groups, particularly, I. Aoki, H. Wu, L. Chung, and S. Kee for assistance with measurements, and A. Komijani, D. Lu, B. Analui, and M. Morgan for their comments on the manuscript. The authors also thank Conexant Systems, Newport Beach, CA, for chip fabrication, especially R. Magoon, F. Intveld, R. Hlavac, A. Vo, J. Powel, T. Whistler, and S. Lloyd for their support during chip tape-out. The authors also appreciate helpful technical discussions with S. Weinreb, Jet Propulsion Laboratory, Pasadena, CA, H. Samavati, Stanford University, Stanford, CA, and Y. Cheng, Conexant Systems, Newport Beach, CA. "Special Issue on Silicon-Based RF and Microwave Integrated Circuits", IEEE Transactions on Microwave Theory and Techniques, vol. 50, no. 1, part 2, January 2002