Distributor/Agen Resmi Transcom Instruments Indonesia
T5280  Vector Network Analyzers
T5280A is a high performance VNA, large frequency range, large dynamic range ,low Noise level, low trace noise, it can be widely used for microwave device measurement in wireless communication, broadcast, TV device, radar device and semiconductor.
● Large frequency range:300kHz to 8GHz
● Large dynamic range:>125dB（IFBW=10Hz）,130dB typ.
● Low noise level: <120dBm（IFBW=10Hz）
● Low trace noise: 1mdB rms（IFBW=3kHz）
● High measurement speed:125μs/point（IFBW=30kHz）
● High effective directivity:>45dB
● Remote Control:LAN/GPIB/USB
● Very low power consumption
● “Onekeytest” solution
Measurement Range


Impedance

50Ω,75Ω^{（}^{1}^{）}

Test port connector

Ntype, female

Number of test ports

2

Frequency range

300kHz to 8GHz

Full CW frequency accuracy

±5×10^{6}

Frequency resolution

1Hz

Number of measurement points

2 to 10001

Measurement bandwidths

1Hz to 30kHz (with 1/1.5/2/3/5/7 steps)

Dynamic range (IF bandwidth 10 Hz)

130dB, typ.135dB

(1)use 75Ωconnectors via adapters
Measurement Speed


Measurement time per point

100μs


Source to receiver port switchover time

＜10ms


Typical cycle times versus number of measurement points（IFBW 30kHz）

51

201

401

1601

Uncorrected（Start 300 kHz, stop 10 MHz）

13.1ms

51.3ms

102.3ms

408.3ms

Full twoport calibration（Start 300 kHz, stop 10 MHz）

45.5ms

122.0ms

230.5ms

840.5ms

Uncorrected（Start 10 MHz, stop 8 GHz）

6.5ms

21.1ms

40.5ms

157.7ms

Full twoport calibration（Start 10 MHz, stop 8 GHz）

32.4ms

61.7ms

100.3ms

333.0ms

Measurement Accuracy


Accuracy of transmission measurements (magnitude / phase)



+5dB to +15dB

0.2dB/2º



50dB to +5dB

0.1dB/1º



70dB to 50dB

0.2dB/2º



90dB to 70dB

1.0dB/6º


Accuracy of reflection measurements (magnitude / phase)






15dB ～ 0dB

0.4dB/3º



25dB ～ 15dB

1.0dB/6º



35dB ～ 25dB

3.0dB/20º


Trace stability


Trace noise magnitude (IF bandwidth 3 kHz)

1mdB rms


Temperature dependence (per one degree of temperature variation)

0.02dB

Effective System Data^{1}


Effective directivity

45 dB

Effective source match

40 dB

Effective load match

45 dB

^{1}applies
over the temperature range of 23°C ± 5 °C after 40 minutes of
warmingup, with less than 1 °C deviation from the full twoport
calibration temperature, at output power of 5 dBm, and IF bandwidth 10
Hz.
Test Port Output


Match (without system error correction)

18 dB

Power range


300 kHz to 6.0 GHz

60dBm to +10dBm

6.0 GHz to 8.0 GHz

60dBm to +5dBm

Power accuracy

±1.5dB

Power resolution

0.05dB

Harmonics distortion

＜25dBc

Non harmonics distortion

＜30dBc

Test Port Input


Match (without system error correction)

18 dB

Damage level

+26dBm

Damage DC voltage

+35V

Noise level (IF bandwidth 10 Hz)

＜125dBm

Measurement Capabilities


Measured parameters

S11,S21,S12,S22

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,
power level, etc.

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 Sparameters,
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.

Sweep Features


Measured points per sweep

Set by the user from 2 to 10001.

Sweep type

Linear frequency
sweep, logarithmic frequency sweep, and segment frequency sweep, when
the stimulus power is a fixed value; and linear power sweep when
frequency is a fixed value.

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 +10 dBm with resolution of 0.05 dB. In frequency sweep mode the
power slope can be set to up to 2 dB/GHz for compensation of high
frequency attenuation in connection wires.

Sweep trigger

Trigger modes: continuous, single, hold. Trigger sources: internal, manual, external.

Trace Functions


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 to have the trace most effectively displayed.

Electrical delay

Calibration plane
moving to compensate for the delay in lowloss test setup. Compensation
for electrical delay in a DUT during measurements of deviation from
linear phase.

Phase offset

Phase offset defined in degrees.

Statistics

Caculation and display of mean, standard deviation, and peaktopeak deviation for a data trace.

Accuracy Enhancement


Calibration

Calibration of a test
setup (which includes the Analyzer, cables, and adapters)significantly
increases the accuracy of measurements. Calibration allows for
correction of the errors caused by imperfections in the measurement
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 oneport calibration;
 onepath twoport calibration;
 full twoport calibration;

Reflection and transmission normalization

The simplest calibration method. It provides low accuracy.

Full oneport calibration

Method of calibration performed for oneport reflection measurements. It ensures high accuracy.

Onepath twoport calibration

Method of calibration
performed for reflection and oneway transmission measurements, for
example for measuring S11 and S21 only. It ensures high accuracy for
reflection measurements, and mean accuracy for transmission
measurements.

Full twoport calibration

Method of calibration performed for full Sparameter matrix measurement of a twoport DUT. It ensures high accuracy.

Directivity calibration (optional)

Correction of directivity additionally to reflection normalization.

Isolation calibration (optional)

Correction of isolation additionally to transmission normalization, onepath twoport calibration, or full twoport calibration.

Error correction interpolation

When the user changes
such settings as 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.

Marker Functions


Data markers

Up to 16 markers for
each trace. Reference marker available for delta marker operation. Smith
chart diagram supports 5 marker formats: linear magnitude/phase, log
magnitude/phase, real/imaginary, R + jX and G + jB. Polar diagram
supports 3 marker formats: linear magnitude/phase, log magnitude/phase,
and real/imaginary.

Reference marker

Enables indication of any maker values as relative to the reference marker.

Marker search

Search for max, min, peak, or target values on a trace.

Marker search additional features

Userdefinable search range. Functions of specific condition tracking or single operation search.

Setting parameters by markers

Setting of start,
stop and center frequencies by the stimulus value of the marker and
setting of reference level by the response value of the marker.

Marker math functions

Statistics, bandwidth.

Statistics

Calculation and display of mean, standard deviation and peaktopeak in a frequency range limited by two markers on a trace.

Bandwidth

Determines bandwidth
between cutoff frequency points for an active marker or absolute
maximum. The bandwidth value, center frequency, lower frequency, higher
frequency, Q value, and insertion loss are displayed.

Data Analysis


Port impedance conversion

The function of
conversion of the Sparameters measured at 50 Ω port into the values,
which could be determined if measured at a test port with arbitrary
impedance.

Deembedding

The function allows
to mathematically exclude from the measurement result the effect of the
fixture circuit connected between the calibration plane and the DUT.
This circuit should be described by an Sparameter matrix in a
Touchstone file.

Embedding

The function allows
to mathematically simulate the DUT parameters after virtual integration
of a fixture circuit between the calibration plane and the DUT. This
circuit should be described by an Sparameter matrix in a Touchstone
file.

Sparameter conversion

The function allows
conversion of the measured Sparameters to the following parameters:
reflection impedance and admittance, transmission impedance and
admittance, and inverse Sparameters.

Time domain transformation

The function performs
data transformation 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.

Time domain gating

The function
mathematically removes unwanted responses in time domain what allows for
obtaining frequency response without influence from the fixture
elements. The function applies reverse transformation back to frequency
domain after cutting out the userdefined span in time domain. Gating
filter types: bandpass or notch. For better tradeoff between gate
resolution and level of spurious sidelobes the following filter shapes
are available: maximum, wide, normal and minimum.

Limit Test

The limit test is a
function to perform the pass/fail judgment based on the limit line you
set with the limit table. In the limit test, if the upper limit or lower
limit indicated by the limit line is not exceeded, the judgment result
is pass; if it is exceeded, the judgment result is fail for all
measurement points on the trace. Measurement points in the stimulus
range with no limit line are judged as pass.

Ripple Test

The ripple test is a
function for evaluating the results on a pass/fail basis based on the
ripple limit, which is set using the ripple limit table. You can specify
up to 12 frequency bands, which permits a test for each frequency band.

General Data


Operating temperature range

+5℃ to +40℃

Storage temperature range

45℃ to +55℃

Humidity

90% （25℃）

Atmospheric pressure

84 to 106.7 kPa

Calibration interval

3 years

Power supply

220 ± 22 V (AC), 50 Hz

Power consumption

60W

Dimensions

440mm(W)x231mm(H)x360mm(D)

Weight

12.5Kg

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