Question

P3. A wireless link between is established between a transmitting and a receiving system, located at a distance of 10 km from each other, at a frequency of 5 GHz. The transmitted power is PT = 10W. At the receiving end it is required to have a power of 0.1mW available at the antenna terminals. Assume that for convenience your transmitting and receiving antennas are identical. (a) What is the antennas’ gain (in dB) needed for such a link? (Assume you have matched the transmitted and received polarization, and that the antenna impedances are matched to the transmission line impedances to avoid reflections.) (b) What is the antennas’ effective aperture?

          P3. A wireless link between is established between a transmitting and a receiving system,
located at a distance of 10 km from each other, at a frequency of 5 GHz. The transmitted
power is PT = 10W. At the receiving end it is required to have a power of 0.1mW
available at the antenna terminals. Assume that for convenience your transmitting and
receiving antennas are identical.
(a) What is the antennas’ gain (in dB) needed for such a link? (Assume you have
matched the transmitted and received polarization, and that the antenna impedances are
matched to the transmission line impedances to avoid reflections.)
(b) What is the antennas’ effective aperture?

Added by Kaitlin S.

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