By Aleksandar Tasic, Wouter A. Serdijn, John R. Long
With one thousand million – quickly to be billion - mobile phones in move, the following problem is to make mobile radio capabilities adaptive to their setting. This ebook presents a finished theoretical framework for optimizing functionality, discussing joint optimization of Noise determine and enter Intercept aspect in receiver structures. additionally tested are unique options to optimize voltage managed oscillators and low-noise amplifiers, minimizing strength intake whereas preserving enough process functionality.
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Additional resources for Adaptive Low-Power Circuits for Wireless Communications (Analog Circuits and Signal Processing)
457-467, October 1959.  B. Ebstein, R. Huenemann and R. Sea, “The Correspondence of Intermodulation and Cross Modulation in Amplifiers and Mixers”, Proceedings of the IEEE, pp. 1514-1516, August 1967, (see comments in pp. 355-357, March 1968).  B. H. Goldberg, “Predict Intermodulation Distortion”, Electronic Design, pp. 76-78, May 1970.  M. E. Goldfarb, “Intermodulation Products,” Microwave Journal, pp. 297-301, May 1985.  L. Sheng, C. Jensen and L. E. Larson, “A Wide-Bandwidth Si/SiGe HBT Direct Conversion Sun-Harmonic Mixer/Downconverter”, IEEE Journal of Solid-State Circuits, vol.
40, no. 12, pp. 2303-2311, December 1992.  G. Lombardi, B. Neri, “Criteria for the Evaluation of Unconditional Stability of Microwave Linear Two-Ports: A Critical Review and New Proof”, IEEE Transactions on Microwave Theory and Techniques, vol. 47, no. 6, pp. 746-751, June 1999  O. F. Bokk and E. B. Gribov, “Small-Signal Calculation of the Amplitude of the Third-Order Combination Frequency in a Transistor Amplifier”, Telecommunications and Radio Engineering, vol. 24, no. 3, pp. 125-129, March 1969.
The downconverted spectra of the I and Q paths obtained are given by Figs. 12. 11: The spectrum in the I channel after low-pass filtering. 12: The spectrum of the Q channel after the low-pass filtering. It is tacitly assumed that each portion of the downconversion is followed by a portion of the filtering (low pass or band-pass). This implies that only the downconverted parts of the spectra are considered. Finally, the complex downconverted signal that consists of the orthogonal I and Q components becomes 2(I jQ ) ( A jB )e jZIF t (C - jD )e jȦIF t .
Adaptive Low-Power Circuits for Wireless Communications (Analog Circuits and Signal Processing) by Aleksandar Tasic, Wouter A. Serdijn, John R. Long