Question

4. 30 points Consider at 100MHz wave with amplitude 6.0 V/,m obliquely incident from a lossless, non-magnetic material with fr 9 onto air. The angle of incidence θ¡ is one-half of the critical angle for total internal reflection. The electric field phasor is of the form 2 a) (5 points) Find the wavelength of the signal in the dielectric. b)(5 points) Find the critical angle for total internal reflection. c) (10 points) Find the magnetic field in the dielectric. d) (10 points) Find the electric field phasor transmitted in air e) Find (9) in air

Answer 1

we んan refnac Aive ind ex of the dielecknic 41 V2 Naw cormpaiviny the standan d fm of the electnic field phasen, eve hae K. = (X.sinA + 군 Cosdi

2 v en b (C/mi)

Bi = &i= 느(gi ) v en 2 2- 2 we also have Aニ 20乙 i n [ 6-1., 곧 t-o-98621]

where ain @hen e k, is the wave-vre ogro İn ain an atty is 212 Now nain in , 3x10m= 3 m 217 be Condi tions LO 어

n 6 Ayain we haw e, ㄒ 2 T