Printed Yagi antennas as a focal plane array in an imaging system

Describes an experimental investigation of a two-dimensional X-band 5*5 array of printed Yagi antennas usable as the focal plane array in an imaging system with f/D approximately 1. E- and H-plane patterns have been measured and aperture efficiencies have been calculated. The results have been compared with a 5*5 constant-width slot antenna (CWSA) array.<
>