Low-profile corrugated feeder horn antenna (Bull's Eye) Antenna 1 : Results

Low-profile corrugated feeder horn antenna (Bull's Eye) Antenna 1 : sketches, objectives and parameters

Antenna Structure: Antenna Parameters Name Description f₀ Centre frequency Wgt Width of top waveguide Hgt Height of top waveguide Wgb Width of bottom waveguide Hgb Height of bottom waveguide Lgb Length of bottom waveguide Ds Depth of slots H Overall height of corrugated section Wr Width of ridges Ws Width of slots

Antenna Structure: Antenna Parameters (2) Name Description X Antenna width Y Antenna length Z Antenna height W Overall width of structure

Sketches Top view Bottom view (zoom)

Sketches (2) End / side view

Design 1: Preview

Design 1: Front Side Preview

Design 1: Left Side Preview

Design 1: Right Side Preview

Design 1: Top Side Preview

Design 1: Bottom Side Preview

Design 1: Design Objectives Objective Group: Ku-band feeder antenna Name Description Value f₀ Centre frequency 16 GHz

Design 1: Physical Parameters Name Description Value Wgt Width of top waveguide 11.54 mm Hgt Height of top waveguide 2 mm Wgb Width of bottom waveguide 15.8 mm Hgb Height of bottom waveguide 7.9 mm Lgb Length of bottom waveguide 10 mm Ds Depth of slots 3.4 mm H Overall height of corrugated section 12 mm Wr Width of ridges 7 mm Ws Width of slots

Design 1: Derived Quantities Name Description Value X Antenna width 249.5 mm Y Antenna length Z Antenna height 22 mm W Overall width of structure

Low-profile corrugated feeder horn antenna (Bull's Eye) Antenna 1 : estimated performance charts

Reflection coefficient vs frequency

Reflection coefficient vs frequency S-Parameters (reflection) Design 1 Minimum S11 value -28.03 dB @ 13.01 GHz Frequency at which S11 = -10 dB 17.28 GHz Reference impedance @ port 1 50 Ω

Radiation pattern (at the centre frequency)

Radiation pattern (at the centre frequency) Gain (Total - normalised)

Radiation pattern (at the centre frequency) Gain (Total - normalised) Design 1 Peak gain @ angle (freq) [φ = 90 °] 19.04 dBi @ θ = 0 ° (16 GHz) Main 3dB beamwidth (freq) [φ = 90 °] 6.267 ° Peak gain @ angle (freq) [φ = 0 °] Main 3dB beamwidth (freq) [φ = 0 °] 12.93 °

Radiation pattern (at the centre frequency)

Radiation pattern (at the centre frequency) Gain (LHC - normalised)

Radiation pattern (at the centre frequency) Gain (LHC - normalised) Design 1 Peak gain @ angle (freq) [φ = 90 °] 16.03 dBi @ θ = 0 ° (16 GHz) Main 3dB beamwidth (freq) [φ = 90 °] 6.267 ° Peak gain @ angle (freq) [φ = 0 °] Main 3dB beamwidth (freq) [φ = 0 °] 12.93 °

Radiation pattern (at the centre frequency)

Radiation pattern (at the centre frequency) Gain (RHC - normalised)

Radiation pattern (at the centre frequency) Gain (RHC - normalised) Design 1 Peak gain @ angle (freq) [φ = 90 °] 16.03 dBi @ θ = 0 ° (16 GHz) Main 3dB beamwidth (freq) [φ = 90 °] 6.267 ° Peak gain @ angle (freq) [φ = 0 °] Main 3dB beamwidth (freq) [φ = 0 °] 12.93 °

Radiation pattern (at the centre frequency)

Radiation pattern (at the centre frequency) Gain (Horizontal - normalised)

Radiation pattern (at the centre frequency) Gain (Horizontal - normalised) Design 1 Peak gain @ angle (freq) [φ = 90 °] - Main 3dB beamwidth (freq) [φ = 90 °] Peak gain @ angle (freq) [φ = 0 °] 19.04 dBi @ θ = 0 ° (16 GHz) Main 3dB beamwidth (freq) [φ = 0 °] 12.93 °

Radiation pattern (at the centre frequency)

Radiation pattern (at the centre frequency) Gain (Vertical - normalised)

Radiation pattern (at the centre frequency) Gain (Vertical - normalised) Design 1 Peak gain @ angle (freq) [φ = 90 °] 19.04 dBi @ θ = 0 ° (16 GHz) Main 3dB beamwidth (freq) [φ = 90 °] 6.267 ° Peak gain @ angle (freq) [φ = 0 °] - Main 3dB beamwidth (freq) [φ = 0 °]

Radiation pattern (at the centre frequency)

Radiation pattern (at the centre frequency) Axial Ratio (Handed)

Radiation pattern (at the centre frequency) Axial Ratio (Handed) Design 1 Maximum axial ratio @ angle [φ=90 °] 0 @ θ=-180 ° Minimum axial ratio @ angle [φ=90 °] Maximum axial ratio @ angle [φ=0 °] Minimum axial ratio @ angle [φ=0 °]

Radiation pattern (at the centre frequency)

Radiation pattern (at the centre frequency) Axial Ratio (IEEE)

Radiation pattern (at the centre frequency) Axial Ratio (IEEE) Design 1 Maximum axial ratio @ angle [φ=90 °] 80 dB @ θ=-180 ° Minimum axial ratio @ angle [φ=90 °] Maximum axial ratio @ angle [φ=0 °] Minimum axial ratio @ angle [φ=0 °]

Radiation pattern (at the centre frequency)

Radiation pattern (at the centre frequency) Ludwig III (Co)

Radiation pattern (at the centre frequency) Ludwig III (Co) Design 1 Peak gain @ angle (freq) [φ = 90 °] 3.282 dBi @ θ = -58 ° (16 GHz) Main 3dB beamwidth (freq) [φ = 90 °] 34.70 ° Peak gain @ angle (freq) [φ = 0 °] 19.04 dBi @ θ = 0 ° (16 GHz) Main 3dB beamwidth (freq) [φ = 0 °] 12.79 °

Radiation pattern (at the centre frequency)

Radiation pattern (at the centre frequency) Ludwig III (Cross)

Radiation pattern (at the centre frequency) Ludwig III (Cross) Design 1 Peak gain @ angle (freq) [φ = 90 °] 19.04 dBi @ θ = 0 ° (16 GHz) Main 3dB beamwidth (freq) [φ = 90 °] 6.252 ° Peak gain @ angle (freq) [φ = 0 °] -1.406 dBi @ θ = 37 ° (16 GHz) Main 3dB beamwidth (freq) [φ = 0 °] 52.84 °