The CCEM international antenna gain comparison CCEM.RF- K23.F was initiated by the Working Group on Radio Frequency quantities (GT_RF) on the Consultative Committee for Electricity and Magnetism. This key comparison report presents results of measurements of on-axis gain of two Ku-band pyramidal horns at 12.4, 15, and 18 GHz. Participants making corrections for mismatch were asked to provide a table of the real and imaginary parts of the reflection coefficients of the antennas. Optionally, participants could measure the swept frequency gain from 12.4 to 18 GHz. Twelve national laboratories participated. The National Institute of Standards and Technology from the United States was the pilot lab. The purpose of the comparison was to evaluate the consistency between the participating laboratories in the measurement of the boresight gain of horn antennas in the WR-62 band. Main text To reach the main text of this paper, click on Final Report. Note that this text is that which appears in Appendix B of the BIPM key comparison database kcdb.bipm.org/. The final report has been peer-reviewed and approved for publication by the CCEM, according to the provisions of the CIPM Mutual Recognition Arrangement (CIPM MRA).

A comparison of electric field measurements was carried out between January 2010 and July 2012 amongst fourteen national metrology laboratories at frequencies 1 GHz, 2.45 GHz, 10 GHz and 18 GHz at indicated field levels of 10 V/m, 30 V/m and 100 V/m. The identification of this intercomparison is CCEM.RF-K24.F. Two electric field probes provided by Amplifier Research have been measured as the travelling standards. The National Physical Laboratory (United Kingdom) acted as the pilot laboratory for the comparison. This report contains the results of the measurements.Main text. To reach the main text of this paper, click on Final Report. Note that this text is that which appears in Appendix B of the BIPM key comparison database kcdb.bipm.org/.The final report has been peer-reviewed and approved for publication by the CCEM, according to the provisions of the CIPM Mutual Recognition Arrangement (CIPM MRA).

The comparison of a loop antenna factor measurement has been performed. One of the motivations for this comparison was that since the last comparison in this field (CCEM.RF-S21.F), several National Metrology Institutes have implemented the calibration capabilities for antenna measurements. The second motivation is that the loop antennas are typically working over a large frequency range, in this case 10 Hz to 30 MHz. For the calibration over this frequency span, two ranges are distinguished: the low frequency range where alternating current (AC) techniques should be used, and the high frequency range where radio-frequency (RF) measurement techniques are applied. The comparison shows that the participants were able to measure within the declared uncertainties.Main text. To reach the main text of this paper, click on Final Report. Note that this text is that which appears in Appendix B of the BIPM key comparison database kcdb.bipm.org/.The final report has been peer-reviewed and approved for publication by EURAMET, according to the provisions of the CIPM Mutual Recognition Arrangement (CIPM MRA).

Abstract. High quality satellite, fibre and mobile communications are an essential part of modern life and vital to European Industry, with increasing demand for telecommunications growing at 40 %. This work develops algorithmic methods allowing traceability in both the measurement and the arithmetic exploitation of the radiated field of antenna. This development has been achieved from electromagnetics simulation with the software CST microwave studio and the Matlab calculator for the algorithmic approaches. Microwave holography allows calculating the field distribution of antenna for different distances between the antenna and the receiver from an initial measurement. The interpolation method allows obtaining a field distribution of antenna with a matrix mesh more thin from a measurement with a matrix mesh more large. In this work, we show the uncertainties propagation using Monte Carlo method. This study allows showing the limits of using algorithms and the parameters which are at the origin of these limits.

Abstract. High quality satellite, fibre and mobile communications are an essential part of modern life and vital to European Industry, with increasing demand for telecommunications growing at 40 %. This work develops algorithmic methods allowing traceability in both the measurement and the arithmetic exploitation of the radiated field of antenna. This development has been achieved from electromagnetics simulation with the software CST microwave studio and the Matlab calculator for the algorithmic approaches. Microwave holography allows calculating the field distribution of antenna for different distances between the antenna and the receiver from an initial measurement. The interpolation method allows obtaining a field distribution of antenna with a matrix mesh more thin from a measurement with a matrix mesh more large. In this work, we show the uncertainties propagation using Monte Carlo method. This study allows showing the limits of using algorithms and the parameters which are at the origin of these limits.