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 ?
7 trang
28/12/2022
1200
Bạn đang xem tài liệu "Bài giảng Electromagnetic Fields - Chapter 8 - Trần Quang Việt", để tải tài liệu gốc về máy hãy click vào nút Download ở trên.
File đính kèm:
- bai_giang_electromagnetic_fields_chapter_8_tran_quang_viet.ppt
Nội dung text: Bài giảng Electromagnetic Fields - Chapter 8 - Trần Quang Việt
- Electromagnetic Fields – Prob – ch_8 P8.1: © Trần Quang Việt – BMCS – Khoa Điện – ĐHBK Tp.HCM
- 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
- 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
- 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
