Subject:Electrical EngineeringPrice: Bought3
Problem 1 1.1 (a) Find an expression for the radiation resistance Rr of a magnetic dipole (circular loop with radius b << A carrying a uniform time-harmonic current with amplitude la). (b) What is the minimum radius b (relative to A). if we want the radiation resistance to be at least 5 Q? (Is this loop be small enough compared with the wavelength so that we can assume that the current is uniform?)