A radar for tracking aircraft broadcasts a 12 GHz microwave beam from a 2.0 m diameter circular radar antenna

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A radar for tracking aircraft broadcasts a 12 GHz microwave beam from a 2.0-m-diameter circular radar antenna

From a wave perspective, the antenna is a circular aperture through which the microwaves diffract

a. What is the diameter of the radar beam at a distance of 30 km?

What is the diameter of the radar beam at a distance of 30 km?


b. If the antenna emits 100 kW of power, what is the average microwave intensity at 30 km?

If the antenna emits 100 kW of power, what is the average microwave intensity at 30 km?


Result





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