Fundamentals of Electromagnetics with Engineering Applications
1st Edition
ISBN: 9780470105757
Author: Stuart M. Wentworth
Publisher: Wiley, John & Sons, Incorporated
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Chapter 9, Problem 9.11P
To determine
The minimum spectral bandwidth for
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Chapter 9 Solutions
Fundamentals of Electromagnetics with Engineering Applications
Ch. 9 - Given a 2.0-cm length of AWG20 copper wire, (a)...Ch. 9 - Recalculate L, Cx, and fSRF if the AWG3O wire for...Ch. 9 - Estimate L and the SRF if a 99.8% iron core is...Ch. 9 - Prob. 9.5PCh. 9 - Prob. 9.6PCh. 9 - Prob. 9.7PCh. 9 - If the 2.2-nF capacitor of Example 9.3 has an area...Ch. 9 - Prob. 9.9PCh. 9 - What is the spectral bandwidth for a 4.0-ns rise...Ch. 9 - Prob. 9.11P
Ch. 9 - Prob. 9.13PCh. 9 - Repeat Example 9.5 using AWG22 wire and 200-MHz...Ch. 9 - Prob. 9.15PCh. 9 - Prob. 9.16PCh. 9 - Prob. 9.17PCh. 9 - Shielding low-frequency magnetic fields often...Ch. 9 - Prob. 9.21PCh. 9 - Prob. 9.22PCh. 9 - Prob. 9.23PCh. 9 - Prob. 9.24PCh. 9 - Determine the insertion loss at 40 MHz for a...
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- The values of and as read from an AM wave on an oscilloscope are and , respectively. Determine the percentage modulation.arrow_forward2. Compare between TEmn and TMmn modes.arrow_forwardPlease explain the waveforms, what are the reason why does the 3rd waveform is attenuated. 1st waveform: Carrier signal (2Vpk,20 kHz) 2nd waveform: Information signal (1Vpk,1kHz) 3rd waveform: Receiver signalarrow_forward
- 1)the average value of the signal is? /2) the effective value of the signal is?arrow_forwardProblem: For the Scope square voltage waveform the 'time/div' (or time base control) switch is on 100 µs/cm and the 'volts/div' (or signal amplitude control) switch is on 20 V/div determine: (a) the periodic time, T (b) the frequency and (c) the peak-to-peak voltage.arrow_forwardDerive the frequency reuse factor for a triangular cellarrow_forward
- 1. A modulating signal with an equation m cos2n(2k)t modulates a carrier signal with a peak amplitude of 9V and a frequency of 500 kHz. 5sin2n(3k)t + 6cos2n(6k)t + A. Calculate the RMS voltage of the modulating signal. B. Calculate the RMS voltage of the AM signal. C. Determine the bandwidth of the AM signal. D. Draw the frequency spectrum of the AM signal. Label completely.arrow_forward78. To assure the same accuracy at both 100 Hz and 100 MHz, the signal level into a frequency counter must be A higher at 100 MHz B. higher at 100 Hz C. inductively coupled at 100 MHz and capacitively coupled at 100 Hz D. resistively coupled at 100 MHz and direct coupled at 100 Hzarrow_forwardDerive an expression for an norrow band pm. For a sinusoidal information signalarrow_forward
- The equation of an angle-modulated voltage is v = 10 sin (l08t + 3 sin 104,). What form of angle modulation is this? Calculate the carrier and modulating frequencies, the modulation index and deviation, and the power dissipated in a 100-ohm resistor.arrow_forwardIn an Amplitude Modulator where the carrier and modulating signals are both sine waves, the frequency spectrum of the resulting AM signal is shown below. 10V 2V 2V kHz 803 808.6 a) Determine the equation of the modulating signal b) Calculate the bandwidth of the AM signal c) Calculate the effective current of the AM signal thru a 75-ohm load. d) Sketch the AM wave and label the maximum and minimum voltage of the signal.arrow_forwardQ7. Figure Q7(a) shows the spectrum of a frequency modulated waveform with a sinusoidal modulation. 12 4.8 5.0 5.2 5.4 5.6 5.8 6.0 Frequency/MHz Figure Q7: (a) Spectrum of a frequency modulated waveform with a sinusoidal modulation. (a) Is this modulated waveform described as narrowband or as wideband? (b) What is the value of the carrier frequency? (c) What is the value of the modulation frequency? (d) Determine the value of the peak frequency deviation. Plots of Bessel functions of the first kind are provided below in Figure Q7(b) to assist you. (e) Estimate the fraction of the total signal power at the carrier frequency. (f) Detection of such a frequency modulated signal is usually accomplished with the use of a discriminator. Describe the function of a discriminator. (g) What is the equivalent AM modulation index obtained if this signal in Figure Q7(a) is demodulated with a high-pass RC filter discriminator? J„(x) 1.0 0.8 0.6 0.4 0.2 -0.2 -0.4 Figure Q7: (b) Bessel functions of the…arrow_forward
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