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SUMMARY - Continued - 14183_76
ANSWERS TO QUESTIONS Q1. THROUGH Q63. - 14183_78

Neets Module 11-Microwave Principles
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1-65 WAVEGUIDE JUNCTIONS are of several basic types. The T-JUNCTION may be either of the E- TYPE or the H-TYPE. The effect on the input energy depends upon which arm is used as the input. The MAGIC-T HYBRID JUNCTION, shown at the right, is a combination of the E- and H-type T junctions. FERRITE DEVICES combine magnetic properties with a high resistance to current flow. Ferrites are constructed from compounds of ferrous metal oxides to achieve the desired characteristics. The fact that the spin axes of electrons will wobble at a natural resonant frequency when subjected to an external magnetic field is the basic principle of operation of ferrite devices. The position of a typical ferrite device within a waveguide is shown in the figure.






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