Show by drawing the vectorial relationship between the propagation constants (as in Fig. 2.9) How β, kn2 and h change in relative magnitude and angle as one goes from the lowest-order mode in a...

Show by drawing the vectorial relationship between the propagation constants

(as in Fig. 2.9) How β, kn2 and h change in relative magnitude and angle as

one goes from the lowest-order mode in a waveguide progressively to higherorder modes.