An E-band slotted waveguide monopulse array antenna with corporate-feed using diffusion bonding of laminated plates

In this paper, we demonstrate an E-band plate-laminated 16 × 16-element slotted waveguide monopulse array antenna with corporate-feed using the diffusion bonding technology. The proposed antenna architecture combines radiating elements, a corporate-feed circuit and a comparator, which are vertically interconnected to achieve a compact size and a reduced loss. The design, characterization, and experimental results are presented.