cbujjibabu cbujjibabu 18-02-2024 Physics contestada A dielectric slab waveguide with constitutive parameters μd=μ0 and ϵd=2.5ϵ0 is situated in free space. What will be the minimum thickness of the slab so that TM or TE wave of the even type at a frequency 20 GHz may propagate along the guide.