Download Adaptive Low-Power Circuits for Wireless Communications by Aleksandar Tasic, Wouter A. Serdijn, John R. Long PDF

By Aleksandar Tasic, Wouter A. Serdijn, John R. Long

With a thousand million – quickly to be billion - mobile phones in move, the subsequent problem is to make mobile radio capabilities adaptive to their surroundings. This booklet offers a finished theoretical framework for optimizing functionality, discussing joint optimization of Noise determine and enter Intercept element in receiver platforms. additionally tested are unique recommendations to optimize voltage managed oscillators and low-noise amplifiers, minimizing strength intake whereas holding enough method functionality.

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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. 35, no. 9, pp. 1329-1337, September 2000. [29] J. , “An Integrated GSM/DECT Receiver: Design Specifications”, UCB Electronics Research Laboratory Memorandum, Memo no. UCB/ERL M97/82, 1998. [30] D. Dewitt and A. L. Rossoff, Transistor Electronics, McGraw-Hill, 1957. [31] C. A. Desoer, “Nonlinear Distortion in Feedback Amplifiers,” IRE Transactions on Circuit Theory, pp.

2: Amplitude-power-dB scale notation. parameter\presentation 3rd-order input-intercept point 3rd-order output-intercept point 3rd-order input-referred intermodulation product 3rd-order output-referred intermodulation product input desired signal output desired signal amplitude AIIP3 AOIP3 power PIIP3 POIP3 dB scale IIP3 OIP3 AIIM3 PIIM3 IIM3 AOIM3 POIM3 OIM3 A AO P PO P [dB] PO [dB] The equivalent IIP3 of, most generally, an n-stage cascaded network equals [2,39,40] 1 AIIP 3 2 1 2 2 AIIP 3,1  2 a1 AIIP 3,2 2  2 a1 b1  ...

3) With the aid of Eq. 4) whereas with the aid of Eq. 3) the complex notation transforms into 2 s(t ) R˜e j(ȦRF t ș)  R˜e  j(ȦRF t ș)  M ˜e j ( Z IM t \ )  M ˜e  j (Z IM t \ ) . 5) Components A+jB and C+jD are often referred to as complex envelopes of the modulated signals [58]. , the downconversion with the cosZOt and sinZOt, respectively). After the mixing of the input signal s(t) (Eq. 5)) with the quadrature components of the oscillation signal (Eq. 6) where ZIF=ZRF-Z0 is an angular intermediate frequency.

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