Q: A 1/3 dipole radiates averaged power of 600 W at a frequency of 300 MHz. A second 1/4 dipole is placed at a point P(r,0,0), where r 200 m, 0 = 90, p=40°. What is the available power at the terminals of the second (receiving) dipole. 12 PLE

1. A quarter-wave dipole oriented on z-axis is placed vertically at a height of h = 0.285A above an infinite electric ground plane, a. Write the expression of the electric field, b. Plot the element factor, array factor, and total pattern on yz-plane, c. Redo parts (b) if h = 0, d. Find the input impedance of the dipole if h = 0.

A centre fed linear dipole antenna, three and half wavelength long, has a feed current of 15 A RMS. Calculate the rms electric field at seven wavelength away from the antenna.

Suppose a dipole antenna is taken and the radiation resistance of the dipole antenna is 452 ohm. What will be the effective length of the dipole antenna? Express the answer as a function of wavelength.