Question: Signals are transmitted at a 1-m carrier wavelength between two identical half-wave dipole antennas spaced by 1 km. The antennas are oriented such that they

Signals are transmitted at a 1-m carrier wavelength between two identical half-wave dipole antennas spaced by 1 km. The antennas are oriented such that they are exactly parallel to each other.

(a) If the transmitting antenna radiates 100 watts, how much power is dissipated by a matched load at the receiving antenna?

(b) Suppose the receiving antenna is rotated by 45◦ while the two antennas remain in the same plane. What is the received power in this case?

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