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Cryogenic Noise Terminations - Waveguide

MT70xx Series

Description

IMaury offers waveguide cryogenic terminations in several styles and a wide range of waveguide sizes from WR430 through WR15. 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.

In addition to liquid nitrogen, these terminations require pressurization with helium gas (not provided) at 2 psi. The MT152A Helium Gas Pressurizing System is available to provide proper regulation of the helium supply.

Specifications

Model

Frequency
Range (GHz)

EIA
Waveguide Size

Maximum
VSWR (GHz)
Calibration
Uncertainty
MT7071B
2.2
-
2.3

WR430

1

1.05
±0.75K
MT7033A
3.7
-
4.2

WR229

1, 2
1.07
±0.75K
MT7035A
5.9
-
6.4

WR159

1, 2

1.08
±0.75K
MT7040D
7.05
-
10.0

WR112

1, 3

1.08
±0.6K
MT7041A
10.0
-
12.4

WR90

3

1.10
±1.0K
MT7042A
10.0
-
15.5

WR75

4

1.08
±0.75K
MT7043D
13.0
-
15.0

WR62

3

1.10
±1.0K
MT7044B
15.0
-
22.0

WR51

4

1.10
±1.0K
MT7021J
18.0
-
26.5

WR42

3

1.08
±0.8K
MT7022J
26.5
-
40.0

WR28

3

1.10
±1.0K
MT7023A
33.0
-
50.0

WR22

3

1.10
±1.5K
MT7025B
50.0
-
75.0

WR15

3

1.15
±1.5K
MT7027J
75.0
-
110.0

WR10

3

1.20
±1.5K

1 Flange mates with the applicable CPR flange.
2 Flange mates with the applicable CMR flange.
3 Flange mates with the applicable military (UG) flange.
4Flange mates with most applicable military and industrial flanges.

Model MT7040D

Model MT7021J (CE) with universal input power supply.



Product Data Sheets (click the links below to download PDF* copies):
4B-019 ( __ KB) Technical Data - Model 7021J - WR42 Waveguide Cryogenic Noise Termination (CE)
4B-020B ( __ KB) Technical Data - Model 7022J - WR28 Waveguide Cryogenic Noise Termination (CE)
3V-101 ( __ KB) Technical Data - Model 7023A - WR22 Waveguide Cryogenic Noise Termination
4B-021 ( __ KB) Technical Data - Model 7033A - WR229 Waveguide Cryogenic Noise Termination
4B-023 ( __ KB) Technical Data - Model 7040D - WR112 Waveguide Cryogenic Noise Termination
4B-008 ( __ KB) Technical Data - Model 7041A - WR90 Waveguide Cryogenic Noise Termination
4B-017 ( __ KB) Technical Data - Model 7042A - WR75 Waveguide Cryogenic Noise Termination
4B-013 ( __ KB) Technical Data - Model 7043A - WR62 Waveguide Cryogenic Noise Termination
4B-018 ( __ KB) Technical Data - Model 7044A - WR51 Waveguide Cryogenic Noise Termination
5C-028 ( __ KB)Application Note - Applications of the Maury Noise Calibration System; Accuracy & Convenience in Noise Measurement

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Copyright 2006 by Maury Microwave Corporation. All rights reserved.