Field and Wave Electromagnetics 2nd Edition by David Cheng

Exercise 39

For rectangular waveguides, use appropriate relations in Section 10-2 to:
a) plot the universal circle diagrams relating u g /u and /k versus f c /f,
b) plot the universal graphs of u/u p , /k, and g / versus f/f c ,
c) find u p /u, u g /u, /k, and g / at f = 1.25f c.