Ka-band Monopulse Slotted Waveguide Antenna

This antenna is intended for high-resolution tracking radar application. The antenna contains of about 1900 radiating slots, that forms pencil beam in the broadside direction with low sidelobes. The antenna is produced from the aluminum alloy, thus it is lightweight (about 1kg). The thickness of the antenna is only 6mm. The antenna is suitable for airborne applications.

Ka-band SWAFig. 1. Ka-band monopulse slotted waveguide antenna

Antenna Characteristics

Operating bandwidth, GHz 0.2 (in Ka-band)
Beam type pencil
3dB beam width (symmetrical), deg 1.7
Polarization Linear/Vertical
Cross-polarization level, dB <-30
Side lobes level, dB <-22 dB
Gain, dBi >38
VSWR <1.3
Diameter, mm 300
Height, mm 6
Weight, kg 1