EXAMEN PARTIEL No.1 Réponses : Question 1 (20 pts) ( /20

EXAMEN PARTIEL No.1 Réponses : Question 1 (20 pts) ( /20

Transmission des Ondes ÉlectroMagnétiques GEL-19881
Département de génie électrique et de génie informatique
Automne
EXAMEN PARTIEL No.1
Réponses :
Question 1 (20 pts) (
/20)
L = 1/15µo = 8.38 × 10−8 H/m
vp = c/2 = 1.5 × 108 m/s)
Zo = 4π = 12.57 Ω
Question 2 (30 pts) (
/30)
a) vinit = 4 V , iinit = 0, Γg = 0, Γd = −0.25, s1 = −80u(t) mA, s2 = −4u(t) V , v1+ = −2 V ,
−
−
i+
1 = −40 mA, v2 = −2.5 V , i2 = 50 mA
b) t = [0 0.25 0.75 1.75] µs, v(t, 25m) = [4 2 − 0.5 0] V , i(t, 25m) = [0 − 40 10 0] mA
Question 3 (30 pts) (
/30)
a) H i = 7.5 × 10−3 (−az ) cos(ωt − 1.5π(x + y) + 0.1π) mA/m
b) f = 318.2 M Hz
c) τ̄kE = 0.4∠36◦ , [Ē t ](0+ ,0,0) = 1.131∠(0.3π) mV /m
Question 4 (20 pts) (
/20)
a) ℓ = 40 m
b) RkL, Req = 20 Ω, R = 33.3 Ω L = 4.28 µH (τ = 0.214 µs)
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