Electronic Communication Systems 2nd Edition by Roy Blake

تمرين 31

A Yagi antenna for a frequency of 200 MHz has three directors of length 0.4 wavelength, one reflector of length 0.6 wavelength, and a half-wavelength folded-dipole driven element. The spacing is 0.25 wavelength between the driven element and the reflector and 0.2 wavelength from the driven element to the first director and between directors. Sketch the antenna, showing all dimensions.