Find safe level for exposure to electromagnetic radiations

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Reference no: EM13272466

1.A base stationcellular communicationsystems lossless antenna has a maximum gain of 16 dB (above isotropic) at 1,900 MHz. Assuming the input power to the antenna is 8 watts, what is the maximum radiated power density (in watts/cm^2) at a distance of 100 meters? This will determine the safe level for human exposure to electromagnetic radiation.

2.The radiation intensity is represented by
U = U. sin(π sin θ), 0 ≤ θ ≤ π/2 and 0 ≤ φ ≤ 2π
= 0 elsewhere
Find the directivity

Reference no: EM13272466

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