Syllabus
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1. Historical introduction Radar principle, revision of basic notions and relations from the theory of electromagnetic field. *
2. Electric circuits at very high frequencies Representation of basic circuit characteristics by means of quantities known from the theory of electromagnetic field, radiation resistance. *
3. Skin effect and internal impedance of a conductor. *
4. Transmission line, telegraph equations, illustrations. *
5. Transformation of impedance along a transmission line Smith chart, measurements of impedances at very high frequencies. *
6. Propagation and reflection of electromagnetic waves Analogy between quantities characterizing electromagnetic wave in space (E,H) and on a transmission line (U,I). *
7. Radiation and antennas, dipole, combined antenna arrays *
8. Propagation of electromagnetic waves in waveguides Waveguide with rectangular cross-section, wave modes, critical wavelength. Attenuation in waveguides. *
9. Cavity resonator of cuboid-form Notion of the quality of the cavity resonator. *
10. Generation of high-frequency energy Ramo theorem, high-frequency planar diode. Two-cavity and reflex klystron. Magnetron, principle of operation. Semiconductor generators of microwaves, tunnel and Gunn diodes.
Annotation
Theory of long transmission lines, wave-guides and cavities with regard to their technical applications, generation of high-frequency oscillations.