GORE VNA Microwave/RF
T T As
Improved VNA performance with precise measurements
GORE VNA Microwave/RF Test Assemblies set the industry
standard for vector network analyzers (VNAs) through 67 GHz.
Constant and/or highly repetitive movement of cables can
compromise the measurement precision of high-performance
VNAs. Leading manufacturers choose GORE VNA Microwave/RF
Test Assemblies because of the improved performance they see
in their equipment.
These test assemblies are specifically engineered to provide the
most precise VNA measurements under laboratory conditions.
They deliver the highest accuracy and the greatest time interval
between recalibrations. GORE VNA Microwave/RF Test Assemblies
have a rugged, lightweight construction that enables longer service
life, reduced downtime, and lower operating costs over the life of
the equipment.
Maximum FB FD FE FF
Gore Connector Type Frequency (26.5 (40 (50 (67
Typical Applications
(GHz) GHz) GHz) GHz) GHz)
Vector network analyzers Benefits of GORE VNA
Precision N Male 18 0AH 0AH 0AH
Testing in lab environments
Microwave/RF Test Assemblies
Precision N Female 18 0AL 0AL 0AL
Critical measurements
Extremely precise measurements with stable electrical
7 mm
performance up to 67 GHz
18 0HD 0HD 0HD
Hermaphroditic
Guaranteed Stability for Precise and
Outstanding phase and amplitude stability with flexure
Repeatable Measurements
3.5 mm Ruggedized
26.5 0HB 0HB 0HB
DUT Male
GORE VNA Microwave/RF Test Assemblies maintain excellent
Excellent reliability with extremely rugged cable
insertion loss and VSWR (Figure 1). Unlike conventionally designed RF
3.5 mm Female 26.5 0HC 0HC 0HC
construction and NMD-style connectors that withstand
test assemblies, Gores assemblies ensure accurate and repeatable
repetitive mating, flexure, crushing, twisting, and bending
2.92 mm Ruggedized
40 0HR 0HR
DUT Male
Reduced downtime because of increased intervals
1
2.92 mm Female 40 0HQ 0HQ
Figure 1: Typical VSWR Performance
between calibrations
2.4 mm Ruggedized
50 0BM
2.0
DUT Male
1.9
2.4 mm Female 50 0BL
measurements because of their excellent phase and amplitude
1.8
1.85 mm Ruggedized
stability with flexure (Figures 2 and 3). Additional testing is
1.7
67 0CM
DUT Male
performed to guarantee this performance with flexure. See Table 1
1.6
1.85 mm Female 67 0CL
for typical and guaranteed performance for each assembly.
1.5
Spec Limit
1.4
Prior to shipment, all GORE VNA Microwave/RF Test Assemblies
1.3
are tested for return loss, insertion loss, phase stability, and loss
1.2
stability up to their maximum operating frequency. Gore test methods
1.1
simulate real-world environments to ensure that the assembly
1.0
delivers precise and repeatable measurements in your application.
0 10 20 30 40 50 60
Frequency (GHz)
1
Data is based on Gores 50 GHz VNA assembly FE0BN0BM025.0.
End B (Device Under Test Connector)
VSWR
semblies esGORE VNA Microwave/RF
Tes T As
Table 1: Product Specifications
Gore Cable Type FB FD FE FF
Length (in) 25 38 48 25 38 48 25 38 48 25 38 48
Maximum Frequency (GHz) 26.5 26.5 26.5 40 40 40 50 50 50 67 67 67
Typical VSWR 1.20:1 1.20:1 1.20:1 1.25:1 1.25:1 1.25:1 1.25:1 1.25:1 1.25:1 1.40:1 1.40:1 1.40:1
Maximum VSWR 1.29:1 1.29:1 1.29:1 1.35:1 1.35:1 1.35:1 1.43:1 1.43:1 1.43:1 1.50:1 1.50:1 1.50:1
Typical Insertion Loss (dB) 1.26 1.80 2.21 2.64 3.85 4.78 2.62 4.00 5.05 5.07 7.04 8.56
Maximum Insertion Loss (dB) 1.56 2.17 2.64 3.46 4.82 5.87 3.62 5.16 6.34 5.83 8.01 9.68
Impedance (Nominal) (Ohms) 50
Typical Phase Stability (degree) 2.0 2.0 3.0 1.5 3.0 3.0 1.5 4.0 4.0 4.0 5.0 7.0
Maximum Phase Stability (degree) 3.9 7.4 10.0 3.7 7.3 7.3 4.5 9.0 9.0 8.5 10.5 10.5
Typical Amplitude Stability (dB) 0.01 0.02 0.03 0.02 0.02 0.03 0.01 0.03 0.03 0.02 0.02 0.04
Maximum Amplitude Stability (dB) 0.08 0.15 0.25 0.08 0.15 0.25 0.08 0.15 0.25 0.10 0.15 0.25
Dielectric Constant (Nominal) 1.4
Velocity of Propagation (Nominal) (%) 85
Shielding Effectiveness (dB through 18 GHz) > 100
Time Delay (Nominal) ns/cm (ns/in) 0.04 (0.103)
Nominal Weight g/m (oz/ft) 295.3 (3.2)
Typical Flex Cycles 100,000 50,000 50,000 50,000
Minimum Bend Radius mm (in) 57.2 (2.25)
Temperature Range (C) Laboratory conditions; analyzer-specific (23 5)
Crush Resistance kgf/cm (lbf/in) 143 (800)
1 1
Figure 2: Typical Phase Stability with Flexure Figure 3: Typical Amplitude Stability with Flexure
5.000 0.100
4.000 0.080
3.000 0.060
Upper Spec Limit Upper Spec Limit
2.000 0.040
Phase with Flexure Amplitude
with Flexure
Lower Spec Limit
1.000 0.020
Lower Spec Limit
0.000 0.000
-1.000 -0.020
-2.000 -0.040
-3.000 -0.060
-4.000 -0.080
-5.000 -0.100
0 10 20 30 40 50 60 0 10 20 30 40 50 60
Frequency (GHz) Frequency (GHz)
1 1
Data is based on Gores 50 GHz VNA assembly FE0BN0BM025.0. The assembly is Data is based on Gores 50 GHz VNA assembly FE0BN0BM025.0. The assembly is
terminated with a short circuit and tested on a calibrated system. A mandrel of 2.25-inch terminated with a short circuit and tested on a calibrated system. A mandrel of 2.25-inch
radius is placed midway down the assembly on either side. The assembly is bent radius is placed midway down the assembly on either side. The assembly is bent
180 degrees around the mandrel, forming a U shape. The assembly is held in this 180 degrees around the mandrel, forming a U shape. The assembly is held in this
position for one full sweep. Maximum deviation over the frequency range of analysis is position for one full sweep. Maximum deviation over the frequency range of analysis is
noted. The assembly is then returned to its straight position, and the VNA is renormalized. noted. The assembly is then returned to its straight position, and the VNA is renormalized.
The mandrel is placed on the opposite side of the assembly and the test is repeated. The mandrel is placed on the opposite side of the assembly and the test is repeated.
Electrical Properties
Mech./Env. Properties
Phase Change (deg.)
Amplitude Change (dB)
semblies