Federal Department of Justice and Police FDJP Federal Office of Metrology METAS EURAMET-EM-SC_Loop-Antenna_Protocol_V1.doc 01.12.2010 / Jk 1/8 EURAMET Supplementary Comparison: EURAMET.EM.RF-S27 Antenna factor for Loop Antennas Technical Protocol Author: Frédéric Pythoud METAS Switzerland Date: 29.11.2010 Table of content 1 Introduction ................................................................................................................... 2 1.1 Historical background ............................................................................................ 2 1.2 Technical background ............................................................................................ 2 1.3 Motivation .............................................................................................................. 2 2 Travelling standard ....................................................................................................... 3 3 Measurements to be made ........................................................................................... 4 3.1 Quantity to be measured: ....................................................................................... 4 3.1.1 Quantity 1: the antenna factor..................................................................... 4 3.1.2 Quantity 2: the complex reflection coefficient S11....................................... 4 3.2 Frequency points ................................................................................................... 4 3.3 Method of computation of the reference value ....................................................... 4 4 Organisation ................................................................................................................. 5 4.1 Pilot Laboratory and support group ........................................................................ 5 4.2 Participants ............................................................................................................ 5 4.3 Time Schedule ....................................................................................................... 5 4.4 Comparison pattern ............................................................................................... 6 4.5 Transportation and dispatch................................................................................... 6 5 Measurement instructions ............................................................................................. 6 5.1 Measurement method ............................................................................................ 6 5.2 Reporting results.................................................................................................... 6 5.3 Uncertainty of measurement .................................................................................. 7 5.4 Measurement report............................................................................................... 7 6 Final Report .................................................................................................................. 7 7 Financial aspects .......................................................................................................... 8 8 References ................................................................................................................... 8