By Burkhard Schiek

A classroom-tested booklet addressing key problems with electric noise

This booklet examines noise phenomena in linear and nonlinear high-frequency circuits from either qualitative and quantitative views. The authors discover vital noise mechanisms utilizing an identical resources and analytical and numerical equipment. Readers methods to deal with electric noise to enhance the sensitivity and backbone of conversation, navigation, dimension, and different digital systems.

Noise in High-Frequency Circuits and Oscillators has its origins in a school path taught by way of the authors. accordingly, it really is completely classroom-tested and punctiliously established to facilitate studying. Readers are given a superior beginning within the fundamentals that permits them to continue to extra complex and complex issues equivalent to computer-aided noise simulation of high-frequency circuits.

Following a dialogue of mathematical and system-oriented basics, the booklet covers:

* Noise of linear one- and two-ports

* dimension of noise parameters

* Noise of diodes and transistors

* Parametric circuits

* Noise in nonlinear circuits

* Noise in oscillators

* Quantization noise

every one bankruptcy includes a set of numerical and analytical difficulties that permit readers to use their newfound wisdom to real-world difficulties. strategies are supplied within the appendices.

With their decades of lecture room event, the authors have designed a publication that's perfect for graduate scholars in engineering and physics. It additionally addresses key concerns and issues to ideas for engineers operating within the burgeoning satellite tv for pc and instant communications industries.

**Read or Download Noise in high-frequency circuits and oscillators PDF**

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**Additional info for Noise in high-frequency circuits and oscillators**

**Sample text**

10 A noise source with variable temperature consisting of a fixed and a variable attenuator and a hot one-port device. 4 Calculate the equivalent noise temperature using the dissipation theorem for the antenna setup in Fig. 11. reflection coefficient p Fig. 11 Determination of the noise temperature of an antenna. 1 NOISE OF TWO-PORTS Description of the internal noise by current and voltage sources The noise of linear two-ports can be described with the help of equivalent current or voltage sources at the input and/or output of the circuit.

54) The noise waves A1 and A2 originate from the terminating impedances 21 and 2 2 . Therefore. they are uncorrelated. that is ATA2 = 0, and Al and A2 are also uncorrelated with the equivalent noise waves XI and Xz of the twoport, because they are generated in different parts of the circuit. Therefore, it is A;,2 . X1,2 = 0. B; = (S11 A1 + 5'12. A2 + XI) (S;1 A; + S;,. AH = ISllI2 IA1l2 + / S 1 2 I 2 ' /A2I2 + /X1I2 . 55) From this and together with Eq. 54) it follows that IX1l2 = kT (1 - IS11l2 - /S12I2) 1 IXzI2 = kT (1 - ISzzI2 - IS21I2) .

However, if the correlation is known, then, linear circuit calculations with noise signals are no more difficult than with sinusoidal signals. Generally, the cross-correlation function pl2 (0) is not an even function, but certainly a real function. Because of Eq. 33): Eq. 90) can also be written in the following form: Thus, Wa always is a real valued function, a necessary condition for a power spectrum. 6 Two non-overlapping frequency bands at different frequencies are to be filtered out of a white noise signal.