ChipSet Measurement Cables0 pages

ChipSet Measurement Cables
Test Cables for Lightweight DUTs and Board Testing
MegaPhase’s CM series cable provides viable test solutions to the chipset market when cable
inteconnections are required. This low density dieletric cable offers several benefits including
good flexibilty, low capapacitance for low-loss transfer of power and high frequencies, stable
phase performance above room temperature, and a large temperature operating profile.
Electrical Data

Specifications

Maximum Frequency:

40 GHz
50 Ω nominal

Impedence:
Propagation Velocity:
Time Delay:

75.5% nominal

1.35 ns/ft (4.43 ns/m)

Shielding Effectiveness:
-90 dB minimum (cable only)
Dielectric Withstanding
Voltage:
Capacitance:

5 kV at 60 Hz

26.7 pF/ft (87.6 pF/m)

Mechanical Data
Finished Outer Diameter:
Static Bend Radius:

0.126 in
(0.32 cm)

0.6 in (1.524 cm)

Weight with Standard
0.02 lbs/ft (0.03 kg/m)
Jacket /Armor:
Operating Temp. Range:

-67 to 392º F
(-55 to 200º C)
Above 185º F (85º C) use “T” designation

Frequency
GHz
0.3
0.5
0.8
1.0
2.0
2.4
3.0
4.0
6.0
8.0
10.0
12.4
15.0
18.0
20.0
22.0
24.0
26.5
28.0
30.0
32.0
34.0
36.0
40.0

Band

Part
No.

UHF
L

CM4

S

C
CM8
X
CM18
Ku

K

CM26

CM34
Ka
CM40

Attenuation
db/ft

dB/m

Conn.
Loss dB

0.092
0.119
0.152
0.170
0.243
0.267
0.300
0.349
0.433
0.505
0.569
0.639
0.710
0.785
0.832
0.877
0.921
0.973
1.004
1.044
1.083
1.121
1.158
1.230

0.302
0.391
0.497
0.558
0.798
0.877
0.985
1.146
1.420
1.656
1.867
2.098
2.328
2.574
2.729
2.877
3.021
3.193
3.294
3.425
3.553
3.677
3.799
4.036

0.006
0.009
0.012
0.014
0.024
0.027
0.032
0.040
0.055
0.070
0.084
0.101
0.118
0.139
0.152
0.165
0.178
0.194
0.204
0.217
0.230
0.243
0.256
0.281

VSWR

1.10

1.15

1.20
1.25
1.30

1.35

1.40

1.45

Note: Typical Insertion Loss dB = (Attenuation)(Length) + 2(Conn. Loss)
Attenuation at any frequency = (0.1654 x √freq GHz) + (0.0046 x freq GHz)

Cable Construction
Inner Conductor:

Solid Ag-plated Cu

Dielectric:

Boundless PTFE

Outer Conductor: Ag-plated Flat Cu Braid/
Polyamide Foil/Ag-plated Round Braid
Standard Finish:

FEP

(a wide variety of other protective finishes
and armors available)
Available Connectors
2.4mm, 2.92mm, 3.5mm, SMA, TNC, Type N
(maximum frequency dependent on cable;
other connectors available)

Excellence in RF Interconnects
2098 West Main Street, Stroudsburg, PA 18360
Tel: 1-877-MegaPhase / 570-424-8400
Fax: 1-877-MegaFax / 570-424-6031
Email: fastquote@megaphase.com / Web: www.megaphase.com