microbend® KMR - microbend KMR
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High performance, ultra low profile, 40GHz


microbend® KMR True Flexible Coaxial Cable Assemblies

Product Description
microbend® KMR has all the benefits of the microbend® but with a solderless 2.9mm plug on one end and an SMPM female on the other end that mates with the Corning Gilbert GPPO™ connector. microbend® KMR replaces custom length, pre defined bend configuration .047 semi-rigid cable with standard length true flexible coax cable. microbend® KMR is 100% tested over the entire operating frequency.

Product Features

  • Precision 2.9mm microbend® plug connector
  • Precision SMPM female connector mateable with GPPO™ from Corning Gilbert
  • Stock delivery on standard lengths
  • Triple shielded for high isolation
  • Lower insertion loss than .047 semi-rigid cable
  • Eliminates need for costly right angle connectors
  • Frequency range up to 40 GHz
  • Guaranteed 10 lb. pull force
  • 100% lead free

Click on image for full size microbend KMR
PDF Format

Electrical Specifications:

Astrolab P/N

Reference No.

Dim. "L"
2.0 GHz
18.0 GHz
26.5 GHz
40.0 GHz

VSWR

Loss dB

VSWR

Loss dB

VSWR

Loss dB

VSWR

Loss dB

microbend KMR-2.5

32041E-29094KCR-29971CR-2.5

 2.50 (63.5)

1.20:1

0.23
1.40:1

0.62

1.50:1

0.77

1.60:1

1.06

microbend KMR-3

32041E-29094KCR-29971CR-3

 3.00 (76.2)

"

0.25

"

0.68

"

0.85

"

1.15
microbend KMR-3.5 32041E-29094KCR-29971CR-3.5 3.50 (88.9)

"

0.27

"

0.74

"

0.92

"

1.25

microbend KMR-4

32041E-29094KCR-29971CR-4

 4.00 (101.6)

"

0.29

"

0.80

"

1.00

"

1.34
microbend KMR-4.5 32041E-29094KCR-29971CR-4.5 4.50 (114.3)

"

0.31

"

0.86

"

1.07

"

1.43

microbend KMR-5

32041E-29094KCR-29971CR-5

 5.00 (127.0)

"

0.33

"

0.92

"

1.15

"

1.53
microbend KMR-5.5 32041E-29094KCR-29971CR-5.5 5.50 (139.7)

"

0.35

"

0.98

"

1.22

"

1.62

microbend KMR-6

32041E-29094KCR-29971CR-6

 6.00 (152.4)

"

0.37

"

1.05

"

1.30

"

1.72

microbend KMR-7

32041E-29094KCR-29971CR-7

 7.00 (177.8)

"

0.40

"

1.17

"

1.44

"

1.90

microbend KMR-8

32041E-29094KCR-29971CR-8

 8.00 (203.2)

"

0.44

"

1.29

"

1.59

"

2.09

microbend KMR-9

32041E-29094KCR-29971CR-9

 9.00 (228.6)

"

0.48

"

1.41

"

1.74

"

2.28

microbend KMR-10

32041E-29094KCR-29971CR-10

 10.00 (254.0)

"

0.52

"

1.53

"

1.89

"

2.47

microbend KMR-11

32041E-29094KCR-29971CR-11

 11.00 (279.4)

"

0.55

"

1.65

"

2.04

"

2.65

microbend KMR-12

32041E-29094KCR-29971CR-12

 12.00 (304.8)

"

0.59

"

1.77

"

2.19

"

2.84

(We offer a cost-effective, non-ruggedized version of the microbend® KMR for systems operating below 12.4 Ghz.)

Click here (32041 cable) for cable specifications

Environmental Limits
Temperature Range: -55°C to +125°C
Thermal Shock: per Mil-Std-202, Method 107, Test Condition A
Vibration: per Mil-Std-202, Method 214, Test Condition B
Mechanical Shock : per Mil-Std-202, Method 213, Test Condition A, 40 Gs

Phase Versus Flexure Reference Data

Astrolab performed phase tests on hundreds of microbend® cable assemblies. Following are two standard Astrolab tests with the corresponding data. In test one microbend® KMR–5 assembly's were flexed 90° in a 0.1 inch radius directly behind the connector. In test two, microbend® KMR–5 assembly's were flexed 180° with a 0.25 inch radius in the middle. Typical data is listed here:
TEST ONE
TEST TWO
40 GHz.
2.9°
6.5°
26.5 GHz.
1.5°
4.5°
18 GHz.
1.0°
3.1°
12.4 GHz.
0.6°
2.3°
2 GHz.
0.1°
0.4°

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