I Agree - Nearfield Systems Inc.

More documents

Recommendations

Info

Back Projection( )( , , ) ( , )iγ d hi xkx+ykyI h A x y x yB x y d = ∫ t k k e e dk dkBack projection is calculated on a plane removed from themeasurement plane by d h.July 2007 6
<strong>Nearfield</strong> and Hologram Back-projectionMeasured phase of THAADarray at .3m distance with25,344 active elements with 6bit phase shifter, 6 bit attenuatorin special ‘calibration’ modeNFHOLOJuly 2007 7
Page 2 and 3: Overview• Prior work• Simulatio
Page 4 and 5: Planar Near-field ScanJuly 2007 4
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 and 20: SNF Angular Span Sensitivity• < H
Page 21 and 22: SNF Angular Span Sensitivity - cont
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.

Create successful ePaper yourself

Delete template?

Save as template?