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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- 78. 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_forward1. 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_forward
- The values of and as read from an AM wave on an oscilloscope are and , respectively. Determine the percentage modulation.arrow_forwardThe 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_forwardThis one.arrow_forward
- Modify this circuit to extend the upper frequency limit to greater than 15 MHz. You may change the topology (i.e. configuration), but not the power supply voltage or collector bias current. The circuit voltage gain must be 46dB +/- 1 dB. Provide simulation results to show AC frequency responses of both circuits on the same plot, and annotate the 3dB upper frequency limit on both traces. Use typical ẞ values from the data sheet for the simulation. You may assume that 1% resistors are available in values below 100. The circuit must adhere to Standard Bias techniques. V4 Rser=0 SINE(0 0.02 10k) AC 1 VCC ୯ V2 +15V Cin1 1μ -VCC VCC R4 Rc1 147k 7k Q3 2N3904 R7 R6 9.09 20.5k Ce1 Re1 1.00k 10p Outarrow_forwardWhat is Maximum Usable Frequency (MUF)? Derive the expression of MUF critical frequency (fcr) and skip distance assuming curve earth.arrow_forward100 MHz carrier wave has a peak voltage of 5 volts. The carrier is frequency modulated (FM) by a sinusoidal modulating signal or waveform of frequency 2 kHz such that the frequency deviation Af is 75 kHz. The modulated waveform passes through zero and is increasing at t= 0. Determine the expression for the modulated carrier waveform.arrow_forward
- Q3: A sinusoidally modulated AM waveform is shown below, Determine: 1. Peak amplitude of the upper and lower side frequencies. 2. Peak amplitude of the unmodulated carrier. 3. The modulation index and it is percentage. 4. The total power and the power efficiency. 5. Plot the frequency and the power spectrum of the modulated signal if the frequency of the carrier and the modulating signal are 2MHz and 15KHz respectively. 12 6 0 -6 -12 Tarrow_forward2 (AM) A 10 V amplitude sinusoidal signal is used as a modulating signal to generate an AM signal with modulation index 0.8. What is the amplitude of the carrier? What is the power of the side bands? What is the efficiency of the modulated signal?arrow_forwardanswer all questions pleasearrow_forward
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