Self Assessment Quiz

1. A rectangular, air filled  waveguide has dimension 2 cm x 1 cm. For what range of frequencies, there is a “single mode” operation in the guide?.

2. The cutoff frequency for a TE10 mode in an air filled waveguide is 1.875 GHz. What would be the cutoff frequency of this mode if the guide were to be filled with a dielectric of permittivity ?

3. In an air filled waveguide of dimension 2 cm x 2 cm, the x component of the electric field is given by

Identify the propagating mode, determine  the frequency of operation  and  find  and .