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A parallel-pole electromagnetic wave with a frequency of 10 kHz comes from the air towards the...

Question

A parallel-pole electromagnetic wave with a frequency of 10 kHz comes from the air towards the...
A parallel-pole electromagnetic wave with a frequency of 10 kHz comes from the air towards the ocean surface, with an angle of incidence θi = 81 °. Here, since the electrical properties of ocean water are ?? = 81, ?? = 1, ? = 4;
a) Find θt refraction angle, ? || the penetration coefficient and the ocean depth where the electric field intensity decreases by 30 dB.
b) If a perpendicular polar electromagnetic wave from a source below the ocean to the air came to the water-air interface with θi = 20 °; What would be the critical angle θc?

You can use these relations Yardımcı Bağıntılar 2n, cos 0 tll 7, cos 0, +7, cos e 7, cos 0, 1 n, cos 0 ΓΙΑ n, cos 0, + n, cos
You can use these relations Yardımcı Bağıntılar 2n, cos 0 tll 7, cos 0, +7, cos e 7, cos 0, 1 n, cos 0 ΓΙΑ n, cos 0, + n, cos e 2n, cos e n, [email protected], + , cos , 1, cos 0 : - n, cos 0, 7, cos 0, +n, cose,

Answers

f = 10KHZ Ei 8 ° = 0 or OH o cean. ain Er Er=t, Mr=1 Er no 1 Et 81, len =4 o n, sino; 11 a ) na sin of Sin (81) 81 Sinot sinFor parallel poranization 2003 cos oi m2 cos で - cos Ott ni cosoi Tii . 2 x 120 x √81 x cos (81) Il 120 7 X * C03 (605) + 120magnitu ituele of transmitted Eletruie field = 0.1302 to end so dB Trausmitted Electric field Pedures by 20 10g (TE ie E-šo -


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