Agilent Technologies 8510-58 manual Define standards, Standard definition models

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Define standards

A glossary of standard definition parameters used with the Agilent 8510 is included in this section. Each parameter is described and appropriate con- versions are listed for implementation with the 8510. To illustrate, a calibration kit for WR-62 rec- tangular waveguide (operating frequency range

12.4to 18 GHz) will be defined as shown in Table 1. Subsequent sections will continue to develop this waveguide example.

Model for reflection standard (short, open, load or arbitrary impedance)

Model for transmission standard (Thru)

Figure 2. Standard definition models

The mathematical models are developed for each standard in accordance with the standard defini- tion parameters provided by the 8510. These stan- dard definition parameters are shown in Figure 2.

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Contents Product Note 8510-5B Table of contents Measurement calibration Measurement errorsIntroduction Calibration kit Standard definition Class assignmentStandard definitions table Standard class assignments Modification procedure Select standardsDefine standards Standard definition modelsOpen circuit capacitance C0 , C1 , C2 and C3 Standard numberStandard type ΠfX ΠfZ∆∅radians = 2πf ∆length Short circuit inductance L0 , L1, L2 and L3Offset delay Delay seconds =Fixed or sliding Terminal impedanceLinear delay Actual delay = Fco/f2 Offset Z0Offset loss 1GHz =1GHz c Z0 10 log10e εrLower/minimum frequency Upper/maximum frequency Fupper = 2 x FlowerCoax or waveguide ∅radians =Standard Classes Assign classesStandard labels S11 A,B,C and S22 A,B,C Forward transmission match and thruReverse transmission match and thru IsolationTRL Thru TRL ReflectTRL Line TRM ThruCalibration kit label Standard Class labelsTRL options Enter standards/classes Verify performanceUser modified cal kits and Agilent 8510 specifications Modification examplesModeling a thru adapter Modeling an arbitrary impedance standardAppendix a Calibration kit entry procedure Disk procedureTo load calibration kits from disk into Agilent To store calibration kits from the Agilent 8510 onto a diskFront panel procedure P-band waveguide example Pshort Type-N coaxial connector interface Appendix B Dimensional considerations in coaxial connectorsMm coaxial connector interface Mm Coaxial connector Type-N coaxial connector interface Female type-NPage Appendix C Cal coefficients model EquationTheir first order approximations, R is small and G=0, are Then Online assistance Phone or Fax United States