1. P. Y. Chan, A. Rofougaran, K. A. Ahmed, A. A. Abidi, “A Highly Linear 1-GHz CMOS Downconversion Mixer,” in Proceedings of the European Solid-State Circuits Conf., pp. 210–213, September 1993.
2. D. H. Shen, C.-M. Hwang, B. Lusignan, B. A. Wooley, “A 900-MHz RF Front-End with Integrated Discrete-Time Filtering,” IEEE J. Solid-State Circuits, vol. 31, pp. 1945–1953, December 1996.
3. S. Sheng, L. Lynn, J. Peroulas, K. Stone, I. O’Donnell, R. Brodersen, “A Low-Power CMOS Chipset for Spread-Spectrum Communications,” in ISSCC Digest of Technical Papers, pp. 346–347, February 1996.
4. A. Brown, B. Wolt, “Digital L-Band Receiver Architecture with Direct RF Sampling,” in Proceedings of the IEEE Position Location and Navigation Symp., pp. 209–215, April 1994.
5. D. M. Akos, J. B. Y. Tsui, “Design and Implementation of a Direct Digitization GPS Receiver Front End,” IEEE Trans. on Microwave Theory and Techniques, vol. 44, pp. 2334–2339, December 1996.