ETS-Lindgren 5411 GTEM! Test Cell - Manual (Page 4)

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5.0 Measured GTEM! Performance .................................................................. 31
GTEM! Performance Qualification – VSWR ..................................................................... 31
Typical VSWR Measurement – Model 5407 .............................................................. 31
GTEM! Electromagnetic Field Response ......................................................................... 31
E-Field Frequency Response .................................................................................... 31
Typical E-Field Frequency Response – Model 5407 ................................................. 32
Electric Field Uniformity ............................................................................................. 32
Typical Electric Field Uniformity – Model 5407 .......................................................... 32
Time Domain Reflectometer ...................................................................................... 34
GTEM! Shielding Effectiveness ........................................................................................ 34
GTEM! Emissions Testing Characterization ..................................................................... 34
6.0 GTEM! Use ................................................................................................... 35
Radiated Immunity Testing ............................................................................................... 35
Substitution Method ................................................................................................... 35
Direct Method ............................................................................................................. 35
Estimation of GTEM! RF Input Power Required for Given Field Strength ....................... 36
Typical 10 V/m Power Required – Model 5400 Series .............................................. 37
Typical Automated Radiated Immunity Test Setup .................................................... 37
Radiated Emissions Testing – General ............................................................................ 39
Radiated Emissions Measurements – Hardware Requirement ....................................... 40
EUT Orientation for Testing .............................................................................................. 40
Measurement Procedure .................................................................................................. 41
Typical EUT System Installed in Large GTEM! ......................................................... 43
Typical EUT System Installed in Large GTEM! (90° Rotation) .................................. 44
Typical EUT System Installed in Large GTEM! (Additional 90° Rotation) ................. 45
Software Computations .................................................................................................... 46
7.0 Ortho-Axis Positioner – Pneumatic (Optional) ......................................... 47
Operation .......................................................................................................................... 47
Functional Schematic ....................................................................................................... 49
Ortho-Axis Positioner for Model 5405 .............................................................................. 50
Ortho-Axis Positioner for Model 5407 .............................................................................. 54
Ortho-Axis Positioner for Model 5411 .............................................................................. 55
8.0 GTEM! Manual EUT Manipulator (Optional) .............................................. 57
EUT Manipulator Platform Apparatus ............................................................................... 57
9.0 Manual EUT Manipulator Operation Theory ............................................. 59
Measurements in a GTEM! ............................................................................................... 59