
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN: 9780133923605
Author: Robert L. Boylestad
Publisher: PEARSON
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Transcribed Image Text:Table 2.1. Bessel function coefficients. Sideband amplitudes as a function of FM Index BEM-
ВЕМ
0.5
1.0
2.0
3.0
4.0
5.0
6.0
7.0
Jo J₁ J₂ J3 J4 J5 J5 J7 J8 Jg
0.94
0.24
0.03
0.77
0.11
0.35 0.13 0.03
0.22
-0.26
-0.40
-0.18
0.44
0.30
0.58
0.34
-0.07
0.49
0.00
0.36
0.02
0.31 0.13 0.04
-0.33 0.05
0.15 -0.28 -0.24 0.11 0.36 0.36 0.25
-0.30
-0.17 0.16 0.35 0.34
0.01
0.43
0.28 0.13 0.05
0.36 0.39 0.26 0.13 0.05
0.02
0.13
0.23
0.02
J10
0.06
0.02
0.13 0.06 0.02

Transcribed Image Text:We learned in the class that a FM signal can be written in the form:
SFM (t) = [ JK (B) cos(wc + kwm) t.
88
JK(B) are the Bessel Functions of order k. This shows that the frequency
spectrum consists of an infinite number of side bands. Referring to the
Bessel Function Table (see Cheat Sheet), draw the spectrum with the
sidebands for B = 6. Ignore amplitudes less than 0.10.
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