Fields And Waves
For the wavegulde described in problem 7, what would be the usable frequency range?
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Fields And Waves
3. Two long, metallic cylinders are centered on the z-axis. The inner cylinder, of radius 1 m, is held at 1 V. The outer cylinder, of radius 2 m, is held at -1 V. Find the radius at which phi = 0.
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Fields And Waves
2. Verify the divergence theorem for the field Ā= ir'z and the volume region given by 0 < I<1,1<y<2, 2 < z <3
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Fields And Waves
1. Point charges 5 nC and -2 nC are located at points (2,0, 4) and (-3,0,5), respectively. Find the y-component of E(1,-3,7) in free space.
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Fields And Waves
A N-turn resonant circular loop with a uniform current distribution and with a circumference of /4, is fed by a lossless balanced twin-lead transmission line with a characteristic impedance of 300 ohms. Neglecting proximity effects, determine the
(a) closest integer number of turns so that the input impedance is nearly 300 ohms;
(b) input impedance of the antenna;
(c) reflection coefficient;
(d) VSWR inside the transmission line.
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Fields And Waves
A small circular loop with a uniform current distribution, and with its classical omnidirectional pattern, is used as a receiving antenna. Determine the maximum directivity (dimensionless and in dB) using:
(a) Exact method.
(b) An approximate method appropriate for this pattern. Specify the method used.
(c) Another approximate method appropriate for this pattern. Specify the method used.
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Fields And Waves
17) What is the skin depth?
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Fields And Waves
16) What are the parameters of the plane wave in good conductors? What is the relationship between ?
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Fields And Waves
15) What are the parameters of the plane wave in freespace? What is the relationship between ?
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Fields And Waves
14) What are the parameters of the plane wave in lossless dielectrics? What is the relationship between ?
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Fields And Waves
For the wavegulde described in problem 7, what would be the usable frequency range?
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