Lecturer: Professor Jean-Fu Kiang

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Presentation transcript:

Lecturer: Professor Jean-Fu Kiang Electromagnetics II Unit 12：Losses in Rectangular Metallic Waveguide and Cavity Resonator, Radiation Properties of Hertzian Dipole and Array Lecturer: Professor Jean-Fu Kiang Text book: N. N. Rao, “Elements of Engineering Electromagnetics,” sixth ed., Pearson, 2004. Unless noted, the course materials are licensed under Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Taiwan (CC BY-NC-SA 3.0)

Plane Wave Incidence to a Highly Conductive Medium 2

Power Dissipation in a Rectangular Waveguide

Power Dissipation in a Rectangular Waveguide

Estimation of Attenuation Constant

Power Dissipation in a Rectangular Cavity Resonator

Power Dissipation in a Rectangular Cavity Resonator

Estimation of Complex Resonant Frequency

Radiation Resistance of a Hertzian Dipole

Radiation Pattern of a Hertzian Dipole Directivity:

Radiation Pattern of a Dipole Array

Example of Array Pattern

Another Example of Array Pattern 13

Copyright Declaration Page Work Licensing Author/Source 2 Jean-Fu Kiang / National Taiwan University This work is licensed by Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Taiwan 3 6

Copyright Declaration Page Work Licensing Author/Source 9 Jean-Fu Kiang / National Taiwan University This work is licensed by Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Taiwan 10 11

Copyright Declaration Page Work Licensing Author/Source 11 Jean-Fu Kiang / National Taiwan University This work is licensed by Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Taiwan 12,13 12

Copyright Declaration Page Work Licensing Author/Source 13 Jean-Fu Kiang / National Taiwan University This work is licensed by Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Taiwan