Cobalt Data Sheet
Cobalt: C1209
C1220
Meet the new face of faceless VNAs
Frequency Range:
C1209 • 0.1 MHz - 9.0 GHz • 2-port
C1220 • 0.1 MHz - 20.0 GHz • 2-port
Dynamic range: 145 dB typ. (1 Hz IF)
Wide output power range: -60 dBm to +15 dBm
Measurement time per point: 10 μs
Discover Cobalt.
0.1 MHz to 9 GHz C1209
0.1 MHz to 20 GHz C1220
The new face of faceless VNAs
Copper Mountain Technologies (CMT) is changing the
face of modern VNAs with its new product line, Cobalt.
Cobalt incorporates multiple technological innovations to
achieve an unmatched price-performance combination for
S-parameter measurement between 100 kHz and 20 GHz
CMT has perfected an innovative new test grade coaxial
connector technology for internal interconnect of the
Cobalt analyzer. The connectors’ tighter tolerances were
achieved using new proprietary manufacturing and
test approaches, contributing to Cobalt’s exceptional
metrological accuracy.
Advanced electromagnetic modelling was used to
optimize the 20 GHz Cobalt’s ultra-wideband directional
coupler design. By incorporating new production methods
for precision air strip lines, these directional couplers have
extraordinary stability, both over temperature and over
very long intervals of time.
Cobalt’s hybrid dual-core DSP+FPGA signal processing
engine, combined with new frequency synthesizer
technologies, propel Cobalt’s measurement speed to among
the most advanced instruments in the industry, and well
past the achievements of any cost-competitive products.
visit www.coppermountaintech.com for more information.
C1209 Front
C1209 Back
C1220 Front
C1220
C1220 Back
Measurement Capabilities
Measured parameters
S11, S21, S12, S22 and absolute power of the reference and
received signals at the port.
Number of measurement channels
Up to 16 independent logical channels: each logical
channel is represented on the screen as an individual
channel window. A logical channel is defined by such
stimulus signal settings as frequency range, number of
test points, or power level.
Data traces
Up to 16 data traces can be displayed in each channel
window. A data trace represents one of such parameters of
the DUT as S-parameters, response in time domain, input
power response.
Memory traces
Each of the 16 data traces can be saved into memory for
further comparison with the current values.
Data display formats
Logarithmic magnitude, linear magnitude, phase,
expanded phase, group delay, SWR, real part, imaginary
part, Smith chart diagram and polar diagram display
formats are available.
Dynamic Range and Speed
Dynamic range and speed
Cobalt’s combination of a wide dynamic range and high
measurement speed make it an ideal VNA for measuring
and tuning high performance filters.
BTS Filter Tuning
BTS filter tuning
Cobalt VNAs have more than 145 dB dynamic range
at 1 Hz IFBW, which allows them to maintain a wide
measurement range at a high measurement speeds.
Measurement of all S-parameters of a BTS filter with
full two-port calibration and 801 measurement points
with 30 kHz IFBW takes only 0.08s while maintaining a
measurement range of over 100 dB. This time is almost
completely determined by the IFBW of the VNA. This
measurement speed allows for real time tuning of high
isolation BTS filters.
SAW Filters
Measurement of the SAW filters in a high speed
production environment
145 dB of the dynamic range of Cobalt VNAs combined
with high measurement speed per point allows
measurement of SAW filters’ S-parameters with full 2-port
calibration and 1601 measurement points in less than
32 ms while still maintaining more than 85 dB of the
measurement range (IFBW at 1 MHz). This measurement
speed corresponds to the performance of the most
advanced handlers used in the process of automatic
verification of the mass-produced SAW filters.
Sweep Features
Sweep type
Linear frequency sweep, logarithmic frequency sweep,
and segment frequency sweep occur when the stimulus
power is a fixed value. Linear power sweep occurs when
frequency is a fixed value.
Measurement points per sweep
Set by the user from 2 to 500,001
Segment sweep features
A frequency sweep within several independent userdefined segments. Frequency range, number of sweep
points, source power, and IF bandwidth should be set for
each segment.
Power
Source power from -60 dBm to +15 dBm with resolution
of 0.05 dB. In frequency sweep mode, the power slope can
be set up to 2 dB/GHz for compensation of high frequency
attentuation in connection wires.
Trace Functions
Sweep trigger
Trigger modes: continuous, single, or hold. Trigger sources:
internal, manual, external, bus.
Trace display
Data trace, memory trace, or simultaneous indication of
data and memory traces.
Trace math
Data trace modification by math operations: addition,
subtraction, multiplication or division of measured
complex values and memory data.
Autoscaling
Automatic selection of scale division and reference level
value allow the most effective display of the trace.
Electrical delay
Calibration plane moving to compensate for the delay
in the test setup. Compensation for electrical delay in a
device under test (DUT) during measurements of deviation
from linear phase.
Phase offset
Phase offset is defined in degrees.
Frequency Scan Segmentation
Frequency scan segmentation
The VNA has a large frequency range with the option of
frequency scan segmentation. This allows optimal use of
the device, for example, to realize the maximum dynamic
range while maintaining high measurement speed.
Power Scaling & Compression
Point Recognition
Power scaling & compression point recognition
The power sweep feature turns compression point
recognition, one of the most fundamental and
complex amplified measurements, into a simple
and accurate operation.
Mixer/Converter Measurements
Scalar mixer/converter measurements
The scalar method allows the user to measure only the
magnitude of the transmission coefficient of the mixer and
other frequency translating devices. No external mixers or
other devices are required. The scalar method employs port
frequency offset when there is a difference between the
source port frequency and the receiver port frequency.
Scalar mixer/converter calibration
This is the most accurate method of calibration applied
for measurements of mixers in frequency offset mode. The
OPEN, SHORT, and LOAD calibration standards are used.
An external power meter should be connected to the USB
port directly or via USB/GPIB adapter.
Vector mixer/converter measurements
The vector method allows the measurement of both
the magnitude and phase of the mixer transmission
coefficient. This method requires an external mixer and
an LO common for both the external mixer and the mixer
under test.
Vector mixer/converter calibration
This method of calibration is applied for vector mixer
measurements. OPEN, SHORT, and LOAD calibration
standards are used.
Automatic frequency offset adjustment
This function performs automatic frequency offset
adjustment when the scalar mixer/converter
measurements are performed to compensate for internal
LO setting inaccuracy in the DUT.
Time Domain Measurements
Time domain measurements
This function performs data transmission from frequency
domain into response of the DUT to various stimulus
types in time domain. Modeled stimulus types: bandpass,
lowpass impulse, and lowpass step. Time domain span is
set by the user arbitrarily from zero to maximum, which
is determined by the frequency step. Windows of various
forms are used for better tradeoff between resolution and
level of spurious sidelobes.
Here, built in time domain analysis allows the user to
detect a physical impairment in a cable.
Time domain analysis allows measurements of
parameters of SAW filters such as the signal time delay,
feedthrough signal suppression.
Time Domain Gating
Time domain gating
This function mathematically removes unwanted
responses in the time domain, which allows the user
to obtain frequency response without influence from
fixture elements.
This function applies reverse transformation back to the
frequency domain after cutting out the user-defined span
in time domain. Gating filter types: bandpass or notch.
For a better tradeoff between gate resolution and level
of spurious sidelobes the following filter shapes are
available: maximum, wide, normal and minimum.
Applications of these features include, but are not limited
to: measurements of SAW filter parameters, such as filter
time delay or forward transmission attenuation.
Limit Testing
Limit testing
Limit testing is a function of automatic pass/fail judgement
for the trace of the measurement results. The judgement is
based on the comparison of the trace to the limit line set
by the user and can consist of one or several segments.
Each segment checks the measurement value for failing
either the upper or lower limit, or both. The limit line
segment is defined by specifying the coordinates of the
beginning (X0, Y0) and the end (X1, Y1) of the segment, and
type of the limit. The MAX or MIN limit types check if the
trace falls outside of the upper or lower limit, respectively.
Embedding
Embedding
This function allows the user to mathematically simulate
DUT parameters by virtually integrating a fixture circuit
between the calibration plane and the DUT. This circuit
should be described by an S-parameter matrix in a
Touchstone file.
De-Embedding
De-Embedding
This function allows the user to mathematically exclude
the effects of the fixture circuit connected between the
calibration plane and the DUT from the measurement
results. This circuit should be described by an S-parameter
matrix in a Touchstone file.
Port Impedance Conversion
Port impedance conversion
This function of conversion of the S-parameters measured
at 50 Ω port into the values, which could be determined if
measured at a test port with arbitrary impedance.
S-Parameter Conversion
S-parameter conversion
The function allows conversion of the measured
S-parameters to the following parameters: reflection
impedance and admittance, transmission impedance and
admittance, and inverse S-parameters
Data Output
Analyzer State
All state, calibration and measurement data can be
saved to an Analyzer state file on the hard disk and later
uploaded back into the software program. The following
four types of saving are available: State, State & Cal, Stat
& Trace, or All.
Channel State
A channel state can be saved into tha Analyzer memory.
The channel state saving procedure is similar to saving of
the Analyzer state saving, and the same saving types are
applied to the channel state saving. Unlike the Analyzer
state, the channel state is saved into the Analyzer inner
volatile memory (not to the hard disk) and is cleared when
the power to the Analyzer is turned off. For channel state
storage, there are four memory registers A, B, C, D. The
channel state saving allows the user to easily copy the
settings of one channel to another one.
Trace Data CSV File
The Analyzer allows the use to save an individual trace
data as a CSV file (comma separated values). The active
trace stimulus and response values in current format are
saved to *.CSV file. Only one trace data are saved to the file.
Trace Data Touchstone File
The Analyzer allows the user to save S-parameters
to a Touchstone file. The Touchstone file contains
the frequency values and S-parameters. The files of
this format are typical for most of circuit simluator
programs. The *.s2p files are used for saving all the four
S-parameters of a 2-port device. The *.s1p files are used
for saving S11 and S22 parameters of a 1-port device.
Only one (active) trace data are saved to the file. The
Touchstone file saving function is applied to individual
active channels.
Screenshot capture
The print function is provided with the preview feature,
which allows the user to view the image to be printed
on the screen, and/or save it to a file. Screenshots can be
printed using three different applications: MS Word, Image
Viewer for Windows, or the Print Wizard of the Analyzer.
Each screenshot can be printed in color, grayscale, black
and white, or inverted for visibility or ink use. The current
date and time can be added to each capture before it is
transferred to the printing application, resulting in wuick
and easy test reporting.
Measurement Automation
COM/DCOM compatible
Cobalt’s software is COM/DCOM compatible, which allows
the unit to be used as a part of an ATE station and other
special applications. COM/DCOM automation is used for
remote control and data exchange with the user software.
The Analyzer program runs as COM/DCOM client. The
COM client runs on Analyzer PC. The DCOM client run on a
separate PC connected via LAN.
LabView compatible
The device and its software are fully compatible with
LabView applications, for ultimate flexibility in usergenerated programming and automation.
Accuracy Enhancement
Calibration
Calibration of a test setup (which includes the VNA,
cables, and adapters) significantly increases the accuracy
of measurements. Calibration allows for correction of
the errors caused by imperfections in the emasurement
system: system directivity, source and load match, tracking
and isolation.
Calibration methods
The following calibration methods of various sophistication
and accuracy enhancement level are available:
• reflection and transmission normalization
• full one-port calibration
• one-path two-port calibration
• full two-port calibration
Reflection and transmission normalization
This is the simplest calibration method; however, it provides
reasonably low accuracy compared to other methods.
Full one-port calibration
Method of calibration performed for one-port reflection
measurements. It ensures high accuracy.
One-path two-port calibration
Method of calibration performed for reflection and
one-way transmission measurements, for example for
measuring S11 and S21 only. It ensures high accuracy
for reflection measurements, and mean accuracy for
transmission measurements.
Full two-port calibration
This method of calibration is performed for fill
S-parameter matrix measurement of a two-port DUT,
ensuring high accuracy.
Accuracy Enhancement Cont.
TRL calibration
“Unknown” thru calibration standard
Method of calibration performed for full S-parameter
matrix measurement of a two-port DUT. It ensures
higher accuracy than two-port calibration. LRL and LRM
modifications of this calibration method are available.
Mechanical calibration kits
The user can select one of the predefined calibration kits
of various manufacturers or define own calibration kits.
Electronic calibration modules
Electronic, or automatic, calibration modules offered by
CMT make the analyzer calibration faster and easier than
traditional meachanical calibration.
Sliding load calibration standard
The use of a generic two-port reciprocal circuit instead of a
Thru in full two-port calibration allows the user to calibrate
the VNA for measurement of “non-insertable” devices.
Defining off calibration standards
Different methods of calibration standard defining
are available:
• standard defining by polynomial model
• standard defining by data (S-parameters)
Error correction interpolation
When the user changes any settings such as the start/stop
frequencies and number of sweep points, compared to
the settings at the moment of calibration, interpolation or
extrapolation of the calibration coefficients will be applied.
The use of sliding load calibration standard allows
significant increase in calibration accuracy at high
frequencies compared to the fixed load calibration standard.
Supplemental Calibration Methods
Power calibration
Power calibration allows more stable maintainance of the
power level setting at the DUT input. An external power
meter should be connected to the USB port directly or via
USB/GPIB adapter
Receiver calibration
This method calibrates the receiver gain at the absolute
signal power measurement.
Technical Specifications
Measurement Range
Impedance
Test port connector
Number of test ports
Frequency Range
Full CW Frequency
Frequency Setting Resolution
Number of Measurement Points
Measurement Bandwidths
(with 1/1.5/2/3/5/7 steps)
Dynamic Range
(IF bandwidth 10 Hz)
C1209
50 Ω
N-type female
2
0.1 MHz to 9.0 GHz
C1220
50 Ω
NMD 3.5 mm male
2
0.1 MHz to 20 GHz
±2x10–6
1 Hz
1 to 500,001
±2x10–6
1 Hz
1 to 500,001
1 Hz to 1 MHz
1 Hz to 1 MHz
133 dB
133 dB
Accuracy Enhancement
Measurement Accuracy
C1209
C1220
Accuracy of transmission measurements
(magnitude/phase)
1 MHz to 9 GHz
10 MHz to 5 GHz
+5 dB to +15 dB
-50 dB to +5 dB
-70 dB to -50 dB
-90 dB to -70 dB
0.2 dB / 2°
0.1 dB / 1°
0.2 dB / 2°
1.0 dB / 6°
0.2 dB / 2°
0.1 dB / 1°
0.2 dB / 2°
1.0 dB / 6°
5 GHz to 14 GHz
0.2 dB / 2°
0.1 dB / 1°
0.2 dB / 2°
1.0 dB / 6°
14 GHz to 20 GHz
0.1 dB / 1°
0.2 dB / 2°
1.0 dB / 6°
Accuracy of reflection measurements
(magnitude/phase)
1 MHz to 9 GHz
10 MHz to 10 GHz
-15 dB to 0 dB
-25 dB to -15 dB
-35 dB to -25 dB
0.4 dB / 3°
1.0 dB / 6°
3.0 dB / 20°
0.4 dB / 3°
1.0 dB / 6°
3.0 dB / 20°
10 GHz to 20 GHz
+5 dB to +10 dB
-50 dB to +5 dB
-70 dB to -50 dB
-90 dB to -70 dB
-50 dB to +5 dB
-70 dB to -50 dB
-90 dB to -70 dB
-15 dB to 0 dB
-25 dB to -15 dB
-35 dB to -25 dB
Trace Stability
Trace noise magnitude
(IF bandwidth 3 kHz)
Temperature dependence
(per one degree of temperature variation)
0.5 dB / 4°
1.5 dB / 10°
5.5 dB / 30°
1 MHz to 9 GHz
10 MHz to 20 GHz
1 mdB rms
1 mdB rms
0.02 dB (0.01 dB typ.)
0.02 dB (0.01 dB typ.)
Technical Specifications
Effective System Data1
Effective directivity
Effective source match
Effective load match
C1209
1 MHz to 9 GHz
46 dB
40 dB
46 dB
Effective directivity
Effective source match
Effective load match
C1220
10 MHz to 10 GHz
46 dB
40 dB
46 dB
10 GHz to 20 GHz
42 dB
38 dB
42 dB
Test Port
Directivity
(without system error correction)
C1209
C1220
1 MHz to 9 GHz
10 MHz to 20 GHz
20 dB
20 dB
Test Port Output
Match
(without system error correction)
Power Range
C1209
C1220
1 MHz to 9 GHz
10 MHz to 20 GHz
20 dB
18 dB
1 MHz to 9 GHz
10 MHz to 5 GHz
-60 dBm to +15 dBm
-60 dBm to +10 dBm
5 GHz to 14 GHz
-60 dBm to +5 dBm
14 GHz to 20 GHz
-60 dBm to 0 dBm
Power Accuracy
Power Resolution
Harmonics Distortion
Non-harmonic Spurious
1
0.05 dB
±1.5 dB
±1.5 dB
0.05 dB
Power out 0 dBm
Power out -5 dBm
-25 dBc
-25 dBc
-30 dBc
-30 dBc
applies over the temperature range of 73°F ± 9 °F (23°C ± 5 °C) after 40 minutes of warming-up, with less than 1 °C deviation from the
one-path two-port calibration temperature, at output power of -5 dBm, and 10 Hz IF bandwidth
Test Port Input
Match
(without system error correction)
Damage Level
Damage DC Voltage
Noise Floor
C1209
C1220
1 MHz to 9 GHz
10 MHz to 20 GHz
20 dB
18 dB
+26 dBm
35 V
+26 dBm
35 V
1 MHz to 9 GHz
10 MHz to 5 GHz
-133 dBm/Hz
-133 dBm/Hz
5 GHz to 14 GHz
-138 dBm/Hz
14 GHz to 20 GHz
-143 dBm/Hz
Measurement Speed
C1209
C1220
Typical cycle time versus number of measurement points
Start 0.1 MHz to 9.0 GHz
Start 0.1 MHz to 20 GHz
Number of points: 1601. IF bandwidth
48 ms
32 ms
1 MHz. Full two-port calibration
Technical Specifications
General Data
External reference frequency
Input level
Input impedance at «Ref IN 10
MHz»
Connector type
Output reference signal level
at 50 Ω impedance
«OUT 10 MHz» connector type
C1209
10 MHz
2 dBm ± 2 dB
C1220
10 MHz
2 dBm ± 2 dB
50 Ω
50 Ω
BNC female
BNC female
3 dBm ± 2 dB
3 dBm ± 2 dB
BNC female
BNC female
External Trigger Input Connector
Type
Input Level
Input level range
Pulse Width
Polarity
C1209
BNC, Female
Low threshold voltage: 0.5 V
High threshold voltage: 2.7 V
0 to + 5 V
2 μsec
Positive or negative
C1220
BNC, Female
Low threshold voltage: 0.5 V
High threshold voltage: 2.7 V
0 to + 5 V
2 μsec
Positive or Negative
External Trigger Output Connector
Type
Maximum output current
Output level
Polarity
C1209
BNC, Female
20 mA
Low level voltage: 0 V
High level voltage: 3.5 V
Positive or negative
C1220
BNC, Female
20 mA
Low level voltage: 0 V
High level voltage: 3.5 V
Positive or Negative
Other
Operating temperature range
Storage temperature range
Humidity
Atmospheric pressure
Calibration interval
Power supply
Power consumption
Dimensions (L x W x H)
Weight
C1209
+41 °F to +104 °F (+5 °C to +40 °C)
-49 °F to +131 °F (-45 °C to +55 °C)
90% at 77 °F (25 °C)
84 to 106.7 kPa
3 years
110-240 V, 50/60 Hz
40 W
377 х 210 х 95 mm
4.8 kg
C1220
+41 °F to +104 °F (+5 °C to +40 °C)
-49 °F to +131 °F (-45 °C to +55 °C)
90% at 77 °F (25 °C)
84 to 106.7 kPa
3 years
110-240 V, 50/60 Hz
110 W
376 х 415 х 140 mm
12 kg
C1209 and C1220
From Copper Mountain Technologies
Interested in learning more?
Locate your local sales office by visiting
www.coppermountaintech.com.
USA Office: +1.317.222.5400
[email protected]
Singapore Office: +65.63.23.6546
[email protected]
3905 Vincennes Road, Suite 105
Indianapolis, IN 46268
USA: +1.317.222.5400 Singapore: +65.63.23.6546
[email protected] [email protected]
www.coppermountaintech.com
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