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Thermal Noise Termination - Waveguide

MT70xx Series

Description

Maury offers waveguide thermal terminations in several styles and a wide range of waveguide sizes, from WR430 through WR10. The chart below represents a typical sample of the available terminations.

Waveguide terminations are generally calibrated at three frequencies - high, low, and arithmetic center - within the applicable frequency range; however, they can be calibrated at any user-specified frequency within the waveguide band. Additional user-specified calibration frequencies are also available as an option.

The physical temperature of the waveguide terminations is 350 kelvins (100°C) with a stability of ±0.2 kelvins. These terminations are calibrated with a specific temperature controller, and the two insturments are provided as a unit. A line voltage option must be specified at the time of order.

Available Models

Model
 Frequency
Range
(GHz)
EIA
Waveguide
Size
Maximum
VSWR
(GHz)
Calibration
Uncertainty
MT7005A
3.7
-
4.2
WR229
1
1.07
±0.75K
MT7081A
10.0
-
12.4
WR90
2
1.10
±1.0K
MT7082A
10.0
-
15.0
WR75
2
1.08
±0.75K
MT7009B
15.0
-
22.0
WR51
1.10
±1.0K
MT7084A
18.0
-
26.5
WR42
2
1.08
±0.8K
MT7085A
26.5
-
40.0
WR28
2
1.10
±1.0K
MT7086A
33.0
-
50.0
WR22
2
1.10
±2.0K
MT7088B
50.0
-
75.0
WR15
2
1.20
±1.0K
MT7090J
75.0
-
110.0
WR10
2
1.15
±1.0K

1
Flange mates with the applicable CPR and CMR flange.
2
Flange mates with the applicable military (UG) flange.

MT7005A Thermal Noise Termination with MT151B Temperature Controller (at left).

Specifications

Frequency Range
See Available Models Chart (at left)

Maximum VSWR:

See Available Models Chart (at left)

Nominal Physical Load Temperature:

373.1 kelvins (100°C)
Load Temperature Stability
1±0.2 kelvins

Noise Temperature Uncertainty:
 1

See Calibration Uncertainty (in chart at left)

Connector:

See Available Models Chart (at left)
AC Power (option must be specified):
(option 22) 100/120 VAC, 50/60 Hz

(option 32) 220/240 VAC, 50/60 Hz

Accessories Provided:

One MT151B controller

One MT7005P controller cable

One instrument case

Product Data Sheets(click the links below to download PDF* copies):
4D-008 ( __ KB) Technical Data - Model MT7118J - 7mm Coaxial Cryogenic Termination
 5C-028 ( __ KB) Application Note - Applications of the Maury Noise Calibration Systems; Accuracy & Convenience in Noise Measurement

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Copyright 2006 by Maury Microwave Corporation. All rights reserved.