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Features

  • High Directivity – up to 40 dB (Series 136)
  • Very High Directivity – up to 44 dB (Series 137)
  • Models from 33.0 GHz to 500 GHz

Applications

  • Power Sensing
  • Network Analyser
  • Reflectometer Systems

Series 136, high directivity and Series 137, very high directivity, are offered in all waveguide sizes within the frequency range 33.0 GHz to 500 GHz. The standard coupling values are 3, 10 and 20 dB, other values, for example 6, 30, 40, 50 and 60 dB, can be supplied.

IMPORTANT! All directivities quoted include the measuring port and flange performance when connected to an ideal termination.

The specifications shown below are for 3 port models. 4 port models are available to special order in Series 136 only. – with a reduced directivity specification.

                
ModelFrequency Range (GHz)WaveguideMinimum Directivity by coupling
value (dB)
CouplingAdditional Primary Arm Loss (dB)Primary Arm VSWRSecondary Arm VSWR
WGWMRWR3 - 30dB
Coupling
40dB
Coupling
50dB
Coupling
Sensitivity
(±dB)
Nominal
Accuracy (dB)
6-Mar1015 - 60
2313633.0 - 50.123-400224040360.750.50.751.20.61.061.1
2413639.3 - 59.724-500193837350.750.50.751.20.71.061.1
2513649.9 - 75.825-620153835330.750.50.751.20.81.061.1
2613660.5 - 92.026-7401238333110.50.751.511.081.1
2713673.8 - 1122725409001036323010.7511.51.11.081.1
2813692.3 - 1402820321200834302810.7511.51.31.121.15
29136114 - 1732916511400632272610.7511.51.41.121.2
30136145 - 2203012951800530262410.851.221.61.121.25
31136172 - 261311092220042825231.20.851.221.81.151.3
32136217 - 33032864260032622211.20.851.2221.21.4
710136260 - 400-710-'2.8'2420191.511.52.52.21.31.6
570136330 - 500-570-'2.2'2218171.511.52.52.61.42
                
ModelFrequency Range (GHz)WaveguideMinimum Directivity by coupling
value (dB)
CouplingAdditional Primary Arm Loss (dB)Primary Arm VSWRSecondary Arm VSWR
WGWMRWR3 - 30dB
Coupling
40dB
Coupling
50dB
Coupling
Sensitivity
(±dB)
Nominal
Accuracy (dB)
3 - 61015 - 60
2313733.0 - 50.123-400224444400.750.500.751.200.61.061.10
2413739.3 - 59.724-500194241390.750.500.751.200.71.061.10
2513749.9 - 75.825-620154239370.750.500.751.200.81.061.10
2613760.5 - 92.026-740124237351.000.500.751.501.01.081.10
2713773.8 - 112272540900104036341.000.751.01.501.11.081.10
2813792.3 - 140282032120083834321.000.751.01.501.31.121.15
29137114 - 173291651140063631301.000.751.01.501.41.121.20
30137145 - 220301295180053430281.000.851.202.001.61.121.25
31137172 - 261311092220043229271.200.851.202.001.81.151.30
32137217 - 33032864260033026251.200.851.202.002.01.201.40
710136260 - 400-710-'2.8'2824231.501.01.502.502.21.301.60
570136330 - 500-570-'2.2'2622211.501.01.502.502.61.402.00