Keysight Technologies N1913PM5B, Product Note

Page: 5 / 18

Waveguide Model Description
Table 1 Available Waveguide and Optional Tapers with Cal Factor Settings
N1913PM5B
N1913PM5B-008
N1913PM5B-006
N1913PM5B-005
N1913PM5B-004
N1913PM5B-003
N1913PM5B-02B
N1913PM5B-002
N1913PM5B-01B
N1913PM5B-001
N1913PM5B-065
PM5B WR10 Waveguide 75-110 GHz
WR8.0 Waveguide Taper 90-140 GHz
WR6.5 Waveguide Taper 110-170 GHz
WR5.1 Waveguide Taper 140 - 220 GHz
WR4.3 Waveguide Taper 170-260 GHz
WR3.4 Waveguide Taper 220-3 30 GHz
WR2.8 Waveguide Taper, WM710 260-400 GHz
WR2.2 Waveguide Taper, WM570 325-500 GHz
WR1.5 Waveguide Taper, WM380 500-750 GHz
WR1.0 Waveguide Taper, WM250 750-1100 GHz
WR0.65 Waveguide Taper, WM 164 1.1-1.5 THz
Cal Factor
0.2 dB
0.3 dB
0.3 dB
0.4 dB
0.5 dB
0.5 dB
0.6 dB
0.6 dB
1.0 dB
1. 5 dB
2.1 dB
•
RF accuracy ( typical ): +/- 5%.
•
Frequency: 75-110 GHz (up to 1.5 T Hz with a taper )
A table in the VDI PM5B Operational Manual (Appendix 2 ) provides the values for
the Cal Factor setting if an additional taper is added. The optional waveguide
tapers have a flat frequency response, so only one Cal Factor value is set on the
PM5B front panel for the waveguide band. The loss of the WR10 sensor and taper
values are to be added together for the Cal Factor setting and rounded to the
nearest 0.1 dB value.
The WR10 75-110 1" section on the sensor head is NOT to be removed.
Add the taper to the WR10 section.
The PM5B calorimeter has a flat frequency response and is calibrated with a NIST traceable
DC source. Cal factor setting is not required unless a
t aper is added for extended frequency
use.
VDI PM5B Cal Factor Settings
Taper Model 1 Description Cal Factor
1. Tapers are optional . They can be ordered with the N1913PM5B.
Keysight N1913PM5B Product Note 5