Answer: A radar for tracking aircraft broadcasts a 12 GHz
Chapter 17, Problem 70(choose chapter or problem)
A radar for tracking aircraft broadcasts a 12 GHz microwave beam from a 2.0-m-diameter circular radar ante nna. From awave perspective, the antenna is a circular aperture throughwhich the microwaves diffract.a. What is the diameter of the radar beam at a distance of30 km?b. If the antenna emits IOO kW of power, what is the averagemicrowave intensity at 30 km?
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