Introduction to Satellite Communication » Exercise - 140. The radius of the Earth is : (a) 2000 km (b) 4000 km (c) 6372 km (d) 8040 km
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In waveguide, a two-hole coupler, two waveguides share a broad wall. The holes are 1/4 wave apart. In the forward case the coupled signals add, in the reverse they subtract (180 apart) and disappear. Coupling factor is controlled by hole size.
In waveguide, a two-hole coupler, two waveguides share a broad wall. The holes are 1/4 wave apart. In the forward case the coupled signals add, in the reverse they subtract (180 apart) and disappear. Coupling factor is controlled by hole size.