s Fig. 2 Cable with ruggedized, polyurethane jacket.
New Cable Assemblies
Cable Assemblies After
RF Leakage (dB)
Typical Phase Shift (PPM)
20 – 20
s Fig. 3 Hard armored cable.
s Fig. 5 Phase Master 190E phase vs.
is required (300 lbs/in). The cable is
covered with a flexible wound helix
of passivated stainless steel wire and
an extruded polyurethane jacket. Its
temperature range is - 54° to + 100°C.
Hard Armored (see Figure 3) is
suitable for both inside and outside
environments where the application
requires the ultimate in cut and crush
resistance (500 lbs/in), and flexibility and weight are not as critical. The
cable is covered with stainless steel interlocked armor and its temperature
range is - 54° to + 135°C.
The complete cable specifications
for the 190E Phase Master Cable are
shown in Table 1. The exceptional
shielding effectiveness, high levels of
phase stability with temperature and
s Fig. 4 Graph of shielding effectiveness.
Typical Phase Shift (°)
26. 5 GHz 18 GHz 10 GHz 5 GHz Start
± 90° Bend Around a 4”/25.4 mm Mandrel
190E PHASE MASTER CABLE SPECIFICATIONS
Diameter (in/mm) 0.199/5.05
Operating Frequency (Max, GHz) 26. 5
Attenuation-Nom 2 GHz (dB/ft) 0.112
Attenuation-Nom 10 GHz (dB/ft) 0.261
Attenuation-Nom 18 GHz (dB/ft) 0.36
Power Handling Average Power in Watts
@ 1 GHz
Phase Stability vs. Temperature
(ppm, nom, ºC)
Phase Stability vs. Flexure†
(degrees 18 GHz, nom)
(dB 1 GHz)
Typical VSWR (2 straight connectors)
<500 from - 55 to + 85*
Min Bend Radius (in/mm)
Connector Retention up to 18 GHz,
straight pull (lbs/kg)
Velocity of Propagation (%)
Operating Temperature Range (°C)
*<800 up to + 125
† ± 90 degree bends around a 4" mandrel
‡ Subject to connector choice
flexure, and the much improved cable
retention capabilities are all products
of engineering development driven by
1.35 18 GHz
1.40 26. 5 GHz
- 55 to + 125
The 190E Phase Master microwave
cable is aimed at test and measurement, radar, wireless communications,
electronic warfare and antenna systems
applications. The overall cable stability and specifically the phase stability,
leakage shielding and rugged construction are ideally suited to applications in
semiconductor test and measurement
where repeated use of the test equipment and the high throughput of the
device under test require the performance repeatability and environmental ruggedness to work and survive over
long periods of use.
For applications in military markets, the ruggedness of the cable is as
important as the repeatability of the
electrical specification of the cable.
For all RF applications the need for
insertion loss repeatability and VSWR
stability are a given, but the addition
of phase stability, especially where the
cable is used in harsh environments,
becomes a matter of paramount importance. The combination of the
design features and the interlocking
electrical and environmental performance capabilities delivered by the
design provide the robust, high performance cables required to meet today’s customer demands.
s Fig. 6 Phase Master 190E phase vs.
Tel: + 44 (0)1635 262200,
RS No. 300