A Ka-band Compact Single-Layer Gap Waveguide Monopulse Slot Array Antenna

Miguel Ferrando-Rocher, Bryan Mayor, Stephan Marini, Alejandro Valero-Nogueira, Jose Ignacio Herranz-Herruzo
2021 2021 XXXIVth General Assembly and Scientific Symposium of the International Union of Radio Science (URSI GASS)   unpublished
This paper presents a gap-waveguide-based compact monopulse array antenna for millimeter-wave tracking applications at . A low-loss Magic-Tee is designed to be used in a monopulse comparator network. The gap waveguide planar monopulse comparator network is integrated in a single layer with a 2×2 corporate-fed network combining ridge gap and groove gap waveguides. Simulated results show bandwidths of 10% with input reflection coefficients better than −12 dB for the sum and difference ports over
more » ... he frequency band of interest. Besides, the isolation between sum and difference ports is more than 50 dB. The simplicity of the design and the fact that it is housed in a single layer permit easy scaling to larger arrays.
doi:10.23919/ursigass51995.2021.9560590 fatcat:b7jri6bbvnacpifdxpehlycpq4