By Aleksandar Tasic, Wouter A. Serdijn, John R. Long
With 1000000000 – quickly to be billion - mobile phones in movement, the subsequent problem is to make mobile radio features adaptive to their setting. This ebook offers a accomplished theoretical framework for optimizing functionality, discussing joint optimization of Noise determine and enter Intercept aspect in receiver platforms. additionally tested are unique ideas to optimize voltage managed oscillators and low-noise amplifiers, minimizing strength intake whereas conserving sufficient method functionality.
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Extra resources for Adaptive Low-Power Circuits for Wireless Communications (Analog Circuits and Signal Processing)
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29) where *OPT is the optimum reflection coefficient corresponding to the optimum source admittance that provides the minimum noise factor, and *S is the source reflection coefficient. The noise parameters, FMIN, RN, and *OPT, are characteristics of the device, and they can be measured with a noise-figure test set, or determined from the device S-parameters. Another noise figure of merit is the noise temperature, TE . By referring to Fig. 4, we can establish the relationship between the noise factor and noise temperature as follows.