Download Adaptive Multi-Standard RF Front-Ends (Analog Circuits and by Vojkan Vidojkovic, J. van der Tang, Arjan Leeuwenburgh, PDF

By Vojkan Vidojkovic, J. van der Tang, Arjan Leeuwenburgh, Arthur H.M. van Roermund

This ebook investigates strategies, advantages, barriers, and prices linked to multi-standard operation of RF front-ends and their skill to evolve to variable radio environments. subsequent, it highlights the optimization of RF front-ends to permit greatest functionality inside of a definite energy finances, whereas concentrating on complete integration. ultimately, the ebook investigates percentages for low-voltage, low-power circuit topologies in CMOS know-how.

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Encompasses just about all features of microwave new release, measurements, and processing, giving every one subject equivalent weight
Describes ferrite units, hollow space resonators, semiconductor and RF/microwave units, and microwave built-in circuits
presents a superb knowing of wave propagation, mirrored image and refraction, guided waves, and transmission lines
Discusses forms of microwave elements, antennas, tubes, transistors, diodes, and parametric devices
features a myriad of illustrations, homework difficulties, references, and numerical examples

Solutions guide and PowerPoint® slides to be had with qualifying direction adoption
Summary

Detailing the lively and passive facets of microwaves, Microwave Engineering: options and basics covers every little thing from wave propagation to mirrored image and refraction, guided waves, and transmission strains, offering a accomplished figuring out of the underlying rules on the center of microwave engineering. This encyclopedic textual content not just encompasses approximately all aspects of microwave engineering, but additionally provides all topics—including microwave iteration, dimension, and processing—equal emphasis. full of illustrations to help in comprehension, the book:

Describes the mathematical thought of waveguides and ferrite units, devoting a complete bankruptcy to the Smith chart and its applications
Discusses varieties of microwave parts, antennas, tubes, transistors, diodes, and parametric devices
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Addresses scattering parameters and their houses, in addition to planar constructions together with striplines and microstrips
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Extra resources for Adaptive Multi-Standard RF Front-Ends (Analog Circuits and Signal Processing)

Sample text

These values are huge compared to a practical power consumption of a RF transceiver that is usually less then a few hundreds of milliwatts [23–25]. 20 CHAPTER 2. FRONT-END ARCHITECTURE SELECTION According to a survey presented in [27], for this resolution a higher power consumption than the power consumption stated in [21] and [22] is required. Therefore, more analog signal processing has to be performed in order to obtain an analog signal with properties that can be handled by an ADC with reasonable power consumption (few tens of milliwatts).

Two-path front-end architectures allow image rejection after the frequency down-conversion. 2. A SET OF FRONT-END ARCHITECTURES 39 Quadrature low-IF front-end architecture The most common two-path front-end architecture is the quadrature low-IF architecture [33]. It is presented in Fig. 21. The RFF and LNA have the same function as in the single-path architectures. The frequency down-conversion function is performed by a pair of mixers. The QLO has to provide I/Q signals. There are many ways to generate I/Q signals [34].

12 [28]. H(ω ) is the complex transfer function of the filter presented in Fig. 12. 34) 30 CHAPTER 2. 36) Xr (ω ), Yr (ω ) and Xi (ω ), Yi (ω ) represent the real and the imaginary part of the complex signals X (ω ) and Y (ω ), respectively. Based on Fig. 12 it can be seen that filtering of a real signal that is done by the transfer function Hr (ω ) or Hi (ω ) (also called real filtering) is a specific case of the complex filtering performed by the transfer function H(ω ). Therefore, in general, a complex filter is a building block that performs a filtering function.

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