I Agree - Nearfield Systems Inc.

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SNF Angular Span Sensitivity – cont’d.• AmplitudeHologram amplitude of SNF_sim_21x13_Array_One_element_phase_rev3.nsiSphere Hemi sphere 160deg120deg80deg0-5-10Amplitude (dB)-15-20-25-30-0.25 -0.20 -0.15 -0.10 -0.05 0.00 0.05 0.10 0.15 0.20 0.25X (meters)July 2007 20
SNF Angular Span Sensitivity – cont’d.Hologram phase of SNF_sim_21x13_Array_One_element_phase_rev3.nsi• Phase100Sphere Hemi sphere 160deg120deg80deg500Phase (deg)-50-100-150-0.30 -0.25 -0.20 -0.15 -0.10 -0.05 0.00 0.05 0.10 0.15 0.20 0.25 0.30X (meters)July 2007 21
Page 2 and 3: Overview• Prior work• Simulatio
Page 4 and 5: Planar Near-field ScanJuly 2007 4
Page 6 and 7: Back Projection( )( , , ) ( , )iγ
Page 8 and 9: Far-field Expressionst ( k , k )A x
Page 11 and 12: Simulated array radiators.13 Elemen
Page 13 and 14: Orthogonal near-field pattern cutsN
Page 15 and 16: Single element with reversed phase1
Page 17 and 18: SNF Radial Distance Sensitivity I
Page 19: SNF Angular Span Sensitivity• < H
Page 23 and 24: PNF Probe to AUT separation distanc
Page 25 and 26: PNF Amplitude sensitivity IHologram
Page 27 and 28: PNF Amplitude sensitivity IIHologra
Page 29 and 30: Conclusions I• SNF back projectio
Page 31: Limitations• The data presented h

I Agree - Nearfield Systems Inc.

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