Microwaves

Download Power RF Circuit Design in Standard CMOS Technology by Unai Alvarado PDF

By Unai Alvarado

Low strength intake is likely one of the severe concerns within the functionality of small battery-powered hand held units. cellular terminals characteristic an ever expanding variety of instant communique choices together with GPS, Bluetooth, GSM, 3G, WiFi or DVB-H. considering the whole energy on hand for every terminal is proscribed by means of the rather gradual bring up in battery functionality anticipated within the close to destiny, the necessity for effective circuits is now critical.
This publication offers the elemental options to be had to layout low strength RF CMOS analogue circuits. It offers circuit designers a whole consultant of possible choices to optimize energy intake and explains the applying of those ideas within the commonest RF development blocks: LNA, mixers and PLLs. it's set out utilizing functional examples and provides a distinct point of view because it objectives designers operating in the typical CMOS approach and all of the boundaries inherent in those applied sciences.

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Power RF Circuit Design in Standard CMOS Technology

Low strength intake is likely one of the severe matters within the functionality of small battery-powered hand held units. cellular terminals characteristic an ever expanding variety of instant communique possible choices together with GPS, Bluetooth, GSM, 3G, WiFi or DVB-H. considering the fact that the full energy on hand for every terminal is restricted by way of the quite gradual raise in battery functionality anticipated within the close to destiny, the necessity for effective circuits is now serious.

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A direct-conversion receiver for DVB-H. IEEE Journal of Solid-State Circuits 40(12), 2536–2546 (2005) (Cha et al. : A TV-Band Harmonic Rejection Mixer Adopting a gm Linearization Technique. : Low-IF topologies for highperformance analog front ends of fully integrated receivers. IEEE Transactions on Circuits and Systems II: Analog and Digital Signal Processing 45(3), 269–282 (1998) (Duvivier et al. : A fully integrated zero-IF transceiver for GSM-GPRS quad-band application. IEEE Journal of Solid State Circuits 38(12), 2249 (2003) 40 3 Impact of Architecture Selection on RF Front-End Power Consumption (Fisher et al.

This provides a clean first down conversion to an intermediate frequency IF = RF – LO1. Once in the IF band, a low pass filter eliminates the up conversion component generated (RF + LO1). Then, the signal is separated in its quadrature terms for the second mixing stage, by means of a second oscillator signal LO2. Finally, a channel filter selects the focused channel which is amplified before the Analogue to Digital Converter. 1. This decision lays on a trade-off among the frequency of the synthesizer, the selectivity and feasibility of the IF band filters, and the coupling of the powers here implied.

This term can be neglected if the signals have short rise and fall times as compared to duration of the signal. 2). e. active region) of operation (see chapter 5). The static biasing power in analog circuits can be expressed as follows: Pbias = I bias ⋅VDD Eq. 5 where Ibias is the bias current. As said before, biasing power is dominant in analog circuits. 3 can be neglected, and total power consumption of analog (and hence RF) circuits can be approximated by Eq. 5. 2 Limits in Power Dissipation In this sections the limits of power consumption in CMOS circuits are described.

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