A phase and amplitude controller reads from a switching control table an antenna switching number and values of I and Q corresponding to a receiving channel number reported from a W-CDMA receiver module, and outputs the antenna switching number and the values of I and Q to a switch and DACs, respectively. Objective optics, which have an optical axis and are characterized by a cylindrical symmetry about the axis, are arranged to focus the optical radiation from an object onto the array with a point spread function having an extent greater than twice the pitch of the array at an optimal focus of the objective optics. The concentration of the catalyst metal in the semiconductor film and the location of the region to be added with the catalyst metal are so selected in order that a desired crystallinity and a desired crystal structure such as a vertical crystal growth or lateral crystal growth can be obtained. This disadvantage is overcome by the present invention. The equalizer is particularly suited to in-cabinet and local area network transmissions where feedback circuitry facilitates adaptive training of the equalizer.