The laboratory has primary level calibration systems for RF power sensor calibrations and calibrations of calculable impedance standards;
- Microcalorimeter system which is able to measure effective efficiency of the thermistor mounts with N type connector and WR220 connector in the frequency range of 100 kHz - 18 GHz and 18 GHz - 26.5 GHz respectively.
- Mechanical measurement system traceable from dimensional measurements of calculable impedance standards in the frequency range of 100 MHz - 50 GHz.
RF and Microwave Laboratory has the capability to measure the calibration factor value within the metrological traceability chain of thermistor mounts or power sensors with N type (100 kHz - 18 GHz), 3.5 mm (100 kHz - 26.5 GHz), 2.92 mm (50 MHz - 40 GHz) and 2.4 mm (50 MHz - 50 GHz) connectors.
Within the scope of power measurements, the power accuracy, linearity and flatness measurements of RF signal sources can be performed within the metrological traceability chain between 100 kHz - 50 GHz frequency range and -70 dBm to + 20 dBm power range in RF and Microwave laboratory.
The measurements of the transmission and reflection coefficients from the scattering-parameters used to characterize a microwave circuit element can be performed within the metrological traceability chain for N-type, 3.5 mm, 2.92 mm and 2.4 mm connector types in the frequency range of 100 kHz - 50 GHz.
Laboratory has the capability of material characterization (permittivity and permeability) measurements up to 50 GHz, calibration of RF noise sources up to 50 GHz and RF power measurement up to 1.1 THz. In addition, the laboratory can perform S parameter measurements with coaxial connectors up to 110 GHz, with waveguide systems for the frequency range of 110 GHz - 170 GHz.
The basic measurement quantities, measurement conditions and expanded uncertainty values of the measurements included in the metrological traceability chain carried out in the laboratory are given in the table below.
The Measurement Quantities and Expanded Uncertainty Values
|
Calibration Quantity and Calibrated Instruments |
Measurement Range |
Measurement Conditions |
Calibration and measurement capability (Expanded uncertainty (k=2)) |
Remarks |
|
RF Power
RF Power Source RF Powermeter |
-20 dBm - +10 dBm |
100 kHz – 18 GHz |
6 mW/W – 9 mW/W |
N Type connector |
|
18 GHz – 26.5 GHz |
10 mW/W – 30 mW/W |
Wave Guide |
||
|
-25 dBm - +20 dBm |
50 MHz – 26.5 GHz |
14 mW/W – 40 mW/W |
3.5 mm connector |
|
|
50 MHz – 40 GHz |
16 mW/W – 50 mW/W |
2.92 mm connector |
||
|
50 MHz – 50 GHz |
20 mW/W – 60 mW/W |
2.4 mm connector |
||
|
+20 dBm - +30 dBm |
100 kHz – 40 GHz |
30 mW/W – 65 mW/W |
N tipi. |
|
|
-100 dBm - -25 dBm |
100 kHz -18 GHz |
1.7 dB |
N Type connector |
|
|
50 MHz – 26.5 GHz |
1.7 dB |
3.5 mm connector |
||
|
Calibration Factor Thermistor Mount, RF Power Sensor |
0.1 mW - 10 mW |
100 kHz - 18 GHz |
4 mW/W - 9 mW/W |
N type connector |
|
18 GHz - 26.5 GHz |
10 mW/W - 30 mW/W |
Wave Guide |
||
|
50 MHz - 26.5 GHz |
11 mW/W - 35 mW/W |
3.5 mm connector |
||
|
50 MHz - 40 GHz |
10 mW/W – 40 mW/W |
2.92 mm connector |
||
|
50 MHz - 50 GHz |
10 mW/W – 40 mW/W |
2.4 mm connector |
||
|
Effective Efficiency Thermistor Mount |
1 mW - 10 mW |
100 kHz - 18 GHz |
3.3 mW/W |
N type connector |
|
18 GHz - 26.5 GHz |
3.9 mW/W |
Wave Guide |
||
|
Calculable Impedance Standard Inner Diameter of Outer Conductor |
7.0000 mm |
100 kHz – 18 GHz |
0.0052 mm |
N tipi connector |
|
3.5000 mm |
10 MHz – 26.5 GHz |
0.0052 mm |
3.5 mm connector |
|
|
2.9200 mm |
10 MHz – 40 GHz |
0.0054 mm |
2.92 mm connector |
|
|
2.4000 mm |
10 MHz – 50 GHz |
0.0061 mm |
2.4 mm connector |
|
|
Calculable Impedance Standard Outer Diameter of Inner Conductor |
3.0400 mm |
100 kHz – 18 GHz |
0.0010 mm |
N tipi connector |
|
1.5200 mm |
10 MHz – 26.5 GHz |
0.0010 mm |
3.5 mm connector |
|
|
1.2700 mm |
10 MHz – 40 GHz |
0.0010 mm |
2.92 mm connector |
|
|
1.0423 mm |
10 MHz – 50 GHz |
0.0010 mm |
2.4 mm connector |
|
|
Reflection Coefficient Passive Equipment |
Real and Imaginary |
100 kHz - 18 GHz |
0.004 - 0.026 |
N type connector Real and Imaginary |
|
45 MHz - 26.5 GHz |
0.008 - 0.029 |
3.5 mm connector Real and Imaginary |
||
|
50 MHz - 40 GHz |
0.008 - 0.029 |
2.92 mm connector Real and Imaginary |
||
|
50 MHz - 50 GHz |
0.012 - 0.030 |
2.4 mm connector Real and Imaginary |
||
|
Transmission Coefficient Passive Equipment Attenuator |
Real and Imaginary (0 dB - 60 dB range) |
100 kHz - 18 GHz |
0.012∙10-3 - 1.190∙10-3 (0.01 dB - 0.10 dB) |
N type connector Real and Imaginary |
|
45 MHz - 26.5 GHz |
0.004∙10-3 - 1.194∙10-3 |
3.5 mm connector Real and Imaginary |
||
|
50 MHz - 40 GHz |
0.004∙10-3 - 1.194∙10-3 |
2.92 mm connector Real and Imaginary |
||
|
50 MHz - 50 GHz |
0.008∙10-3 - 2.194∙10-3 |
2.4 mm connector Real and Imaginary |