An experimental investigation of currents on a yagi array of slot antennas on planar and curved surfaces

The slot Yagi-type antenna array is studied in detail on planar and curved surfaces. Current magnitude and phase associated with individual elements are measured for various element lengths and element spacings. Termination effects are studied for an eighteen-element array with elements one-third of a wavelength in length and with various element spacings. Comparison is made with and support given to recent work integrating array and surface wave theories.