Bài giảng Electromagnetic Fields - Chapter 8 - Trần Quang Việt

P8.3:  Find the amplitude Im of the current with which a Hertzian dipole of length 0.5 m has to be excited at a frequency of 10 MHz to produce an electric-field intensity of amplitude 1 mV/m at a distance of 1 km broadside to the dipole , in free space ? What is the time-average power radiated for the computed value of Im ?
ppt 7 trang thamphan 28/12/2022 1720
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  1. Electromagnetic Fields – Prob – ch_8 P8.1: © Trần Quang Việt – BMCS – Khoa Điện – ĐHBK Tp.HCM
  2. Electromagnetic Fields – Prob – ch_8 P8.3: Find the amplitude Im of the current with which a Hertzian dipole of length 0.5 m has to be excited at a frequency of 10 MHz to produce an electric-field intensity of amplitude 1 mV/m at a distance of 1 km broadside to the dipole , in free space ? What is the time- average power radiated for the computed value of Im ? P8.4: (Ans: 500 mA , 158 mW ) © Trần Quang Việt – BMCS – Khoa Điện – ĐHBK Tp.HCM
  3. Electromagnetic Fields – Prob – ch_8 P8.7: (Ans: a) 0.0637 + j0.2689 , 1.764, 92.37% b) – 0.0204 , 1.042, 99.96% ) © Trần Quang Việt – BMCS – Khoa Điện – ĐHBK Tp.HCM
  4. Electromagnetic Fields – Prob – ch_8 P8.10: (Ans: a) 29.7% b) – 3.5 dB c) 67.6 A and 269 W ) © Trần Quang Việt – BMCS – Khoa Điện – ĐHBK Tp.HCM