Title :
Electro-optic sampling of coplanar to coaxial transitions to enhance the calibration of fast oscilloscopes
Author :
Smith, Andrew J A ; Roddie, Alan G ; Woolliams, Peter D.
Author_Institution :
Centre for Electromagnetic and Time Metrology, National Physical Laboratory, Teddington, Middlesex, United Kingdom TW11 0LW, e-mail: andrew.smith@npl.co.uk
Abstract :
Improvements to the NPL time domain measurement facility for the calibration of fast oscilloscope risetime are described. Particular emphasis is placed on characterising a coplanar waveguide to coaxial connector transition between a photoconductive pulse generator and the input of an oscilloscope sampling head. Two methods of measuring the transition are described and it is shown that test electrical pulses of less than 4 ps width can be applied to the oscilloscope.
Keywords :
Calibration; Coaxial components; Connectors; Coplanar waveguides; Oscilloscopes; Pulse measurements; Sampling methods; Time measurement; Waveguide components; Waveguide transitions;
Conference_Titel :
ARFTG Conference Digest-Fall, 56th
Conference_Location :
Boulder, AZ, USA
Print_ISBN :
0-7803-5686-1
DOI :
10.1109/ARFTG.2000.327439
