Fundamentals of Engineering Electromagnetics 1st Edition by David Cheng

Exercise 15

Equation (9-121) indicates that the quality factor Q 101 for TE 101 mode in a cubic resonant cavity ( a = b = d ) can be written as
(9-122)
where is the skin depth of the cavity walls.
a) If the cavity is made of brass, determine a so that a quality factor of 6,500 is obtained.
b) Find the resonant frequency.
c) What will Q 101 be if the cavity is made of copper