Specifications

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SECTION 3 Fixturing and cabling
––––––– LF impedance measurement –––––––
Paragraph 3-1 Terminal configuration ................................................................ 3-1
3-2 Using test cables at high frequencies ......................................... 3-5
3-3 Test fixtures ................................................................................... 3-5
3-3-1 Agilent supplied test fixtures ...................................................... 3-5
3-3-2 User fabricated test fixtures ........................................................ 3-6
3-3-3 User test fixture example ............................................................ 3-7
3-4 Test cables ...................................................................................... 3-8
3-4-1 Agilent supplied test cables ......................................................... 3-8
3-4-2 User fabricated test cable ............................................................ 3-8
3-4-3 Test cable extension ..................................................................... 3-9
3-5 Eliminating the stray capacitance effects ................................. 3-12
––––––– RF impedance measurement –––––––
3-6 Terminal configuration in RF region ......................................... 3-12
3-7 RF test fixtures .............................................................................. 3-13
3-7-1 Agilent supplied RF test fixtures ................................................ 3-14
3-8 Test port extension in RF region ................................................ 3-15
SECTION 4 Measurement error and compensation
––––––– Basic concepts and LF impedance measurement –––––––
Paragraph 4-1 Measurement error ....................................................................... 4-1
4-2 Calibration and compensation .................................................... 4-1
4-2-1 Offset compensation ..................................................................... 4-2
4-2-2 Open and short compensations .................................................. 4-2
4-2-3 Precautions for open and short measurements ....................... 4-3
4-2-4 Open, short and load compensations ......................................... 4-4
4-2-5 What should be used as the load? ............................................... 4-5
4-2-6 Application limit for open, short and
load compensations ...................................................................... 4-7
4-3 Error caused by contact resistance ............................................ 4-7
4-4 Measurement cable extension induced error ........................... 4-9
4-5 Practical compensation examples .............................................. 4-11
––––––– RF impedance measurement –––––––
4-6 Calibration and compensation in RF region ............................. 4-13
4-6-1 Calibration ..................................................................................... 4-13
4-6-2 Error source model ....................................................................... 4-14
4-6-3 Compensation method ................................................................. 4-15
4-6-4 Precautions for open and short measurements
in RF region ................................................................................... 4-15
4-6-5 Consideration for short compensation ...................................... 4-16
4-6-6 Calibrating load device ................................................................ 4-17
4-6-7 Electrical length compensation .................................................. 4-18
4-6-8 Practical compensation technique ............................................. 4-19
4-7 Measurement correlation and repeatability ............................. 4-19