Electromagnetic radiation can be used to heat cancerous tumors. If a plane wave is normally incident on the tissue surface at 1.2 GHz as shown in Figure. 10.26, determine the refection coefficient. At 1.2 GHz, the electrical properties of the tissue are ε_r = 50, μ_r = 1,σ = 4 S/m.

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(V² - y²) Ex(z) = 0