Chapter 3
Basic Modulation Techniques
3.1 Problems
Problem 3.1 The demodulated output, in general, is yD (t) = Lp{xc (t) 2 cos[ c t + (t)]} where Lp {} denotes the lowpass portion of the argument. With xc (t) = Ac m (t) cos [ c t + 0 ] the demodul
ELCT564
Spring 2017
Chapter 5: Impedance Matching
and Tuning
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Impedance Matching
Maximum power is delivered when the load is matched the line and the power loss
in the feed line is minimized
Impedance matching sensitive receiver componen
ELCT564
Spring 2017
Chapter 2: Transmission Line
Theory
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The Lumped-Element Circuit Model of T-Line
Transmission line theory bridges the gap between field analysis and basic circuit theory
Voltage and current definitions of an incrementa
ELCT564
Spring 2017
Chapter 3: Waveguides and
Transmission Lines
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Waveguides
Metal Waveguides
Dielectric Waveguides
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Comparison of Waveguides and Tlines
Transmission Line
Waveguide
Two or more conductors separated by so
ELCT564
Spring 2017
Chapter 4: Microwave Network
Analysis
03/15/17
ELCT564
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Equivalent Voltages and Currents
Voltage is proportional to the transverse electric field
Current is proportional to the transverse magnetic field
The product of equivalent volta
Chapter 2
Signal and Linear System Theory
2.1 Problem Solutions
Problem 2.1 For the single-sided spectra, write the signal in terms of cosines: x(t) = 10 cos(4t + /8) + 6 sin(8t + 3/4) = 10 cos(4t + /8) + 6 cos(8t + 3/4 - /2) = 10 cos(4t + /8) + 6
Chapter 5
Random Signals and Noise
5.1 Problem Solutions
Problem 5.1 The various sample functions are as follows. Sample functions for case (a) are horizontal lines at levels A, 0, -A, each case of which occurs equally often (with probability 1/3).
Chapter 4
Probability and Random Variables
4.1 Problem Solutions
Problem 4.1 S = sample space is the collection of the 25 parts. Let Ai = event that the pointer stops on the ith part, i = 1, 2, ., 25. These events are exhaustive and mutually exclus