Click to edit Master subtitle style Click to edit Master title style X X - - Band Horn Antenna Design Band Horn Antenna Design at RRS at RRS W W Steyn Steyn , , Reutech Reutech Radar Systems Radar Systems Innovative solutions Innovative solutions … … Affordable Affordable … … .Available .Available
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X-Band Horn Antenna Design - CST · Click to edit Master subtitle style Click to edit Master title style X-Band Horn Antenna Design at RRS W Steyn, Reutech Radar Systems Innovative
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XX--Band Horn Antenna Design Band Horn Antenna Design at RRSat RRS
W W SteynSteyn, , Reutech Reutech Radar SystemsRadar Systems
Machineable waveguide twist – Lenzing 199090° rotation of E-plane through L-shaped waveguideDesign L-shaped waveguide to have the same cut-off frequency as input waveguide.Twist 100mm long
Sub-Plank Feed Design
Sub-plank manufactured from Aluminium using CNC machining and wire-cutting.
Gain 15-16.5dB
Sub-Plank Measurement
Sub-Plank Measurement
Full Plank Feed Design
96 Elements – 16 banks of 6 uniform excitationsStart with Villeneuve Distribution for 16 elements, 5 close-in elements, 40dB sidelobesUniform banks produce quantization lobes at –30dB
Full Plank Feed Design
96 Elements – 16 banks of 6 linear excitationsLinear banks produce quantization lobes at –35dB
4 LevelsDivider 2 problematic5-stage transformer used to obtain good phase balance between output ports
Full Plank Feed Design
Full Plank Feed Design
Full Plank Measurements
Full Plank Measurements
From preliminary measurements on sub-planks the gain was expected to be 1 to 2dB low, especially at lower frequencies.Measurement uncertainties of ±1dB
Designed, manufactured and tested 2.4m X-Band horn antenna plank20% bandwidth70° elevation beamwidthGood azimuth side-lobe performanceGain is low at lower frequenciesIt is way too heavy! Investigate alternative manufacturing processes