Atec VNA User Manual

Technical Data Sheet

™

VNA Master

Handheld Vector Network Analyzer + Spectrum Analyzer

MS2026C MS2027C MS2028C

5 kHz to 6 GHz 5 kHz to 15 GHz 5 kHz to 20 GHz Vector Network Analyzer

MS2036C MS2037C MS2038C

5 kHz to 6 GHz 5 kHz to 15 GHz 5 kHz to 20 GHz Vector Network Analyzer 9 kHz to 9 GHz 9 kHz to 15 GHz 9 kHz to 20 GHz Spectrum Analyzer

The Ultimate Handheld Vector Network + Spectrum Analyzer for Cable, Antenna, and Signal Analysis Anytime, Anywhere

Introduction

High Performance Handheld S-Parameters

Anritsu introduces the MS202x/3xC VNA Master + Spectrum Analyzer, the industry’s broadest frequency handheld solution to address cable, antenna, component, and signal analysis needs in the field: with frequency coverage from 5 kHz up to 20 GHz. Equally impressive, this broadband measurement tool offers the industry’s first 12-term error correction algorithm in a truly handheld, battery-operated, rugged multi-function instrument. And now the MS203xC models include a powerful spectrum analyzer which multiplies user convenience by combining spectrum analysis with the VNA into a single measurement powerhouse for the harsh RF and physical environments of field test. Whether it is for spectrum monitoring, broadcast proofing, interference analysis, RF and microwave measurements, regulatory compliance, or 3G/4G and wireless data network measurements, this VNA/Spectrum Analyzer combination is the ideal instrument for making fast and reliable measurements in the field.

Performance and Functional Highlights

Vector Network Analyzer

• Broadband coverage of 5 kHz to up to 20 GHz

• True 2-path, 2-port Vector Network Analyzer

• Ultimate accuracy with 12-term error correction

• User-defined Quad Display for viewing all 4 S-Parameters

• Arbitrary data points up to 4001

• IF Bandwidth selections of 10 Hz to 100 kHz

• Directivity: > 42 dB 5 kHz - 5 GHz (all models) > 36 dB 5 GHz - 15 GHz (MS2027C/37C) > 32 dB 15 GHz - 20 GHz (MS2028C/38C)

• Transmission Dynamic Range: > 100 dB 2 MHz - 3 GHz (all models) > 90 dB 3 GHz - 6 GHz (all models) > 85 dB 6 GHz - 15 GHz MS2027C/37C > 85 dB 6 GHz - 20 GHz MS2028C/38C

• Supports waveguide measurements

• 350 µsec/data point sweep speed

• USB/Ethernet for PC data transfer and control

• Automate repetitive tasks via Ethernet & USB

Block Diagram

As shown in the following block diagram, the VNA Master has a 2-port, 2-path architecture that automatically measures four S-parameters with a single connection.

• Field upgradable firmware

• Traces and setups limited by memory

• Portable: 10.5 lbs (4.8 kg)

• Full Speed USB Memory support

• High resolution daylight viewable TFT color display

• Time Domain option for Distance-to-Fault diagnostics

• Internal Bias Tee option

• Vector Voltmeter option

• High Accuracy Power Meter option

• Differential option (S

d1d

, S

c1c

, S

d1c

, and S

c1d

)

• Secure Data Operation option

• GPS Receiver option

• Power Monitor option

• Polar Format Impedance Display

• Supports 4, 6, 8, 18, 26 GHz USB Power Sensors

• 8.4 in. Display

• Standards Compliance:

• MIL-PRF-28800F Class 2

Port 1 Port 2

Receiver

Port 1

Bridge/ Coupler

Source

The above illustration is a simplified block diagram of VNA Master’s 2-port, 2-path architecture.

Spectrum Analyzer (MS203xC models only)

• Measure: Occupied Bandwidth, Channel Power, ACPR, C/I

• Dynamic Range: > 104 dB in 1 Hz RBW

• DANL: –160 dBm in 1 Hz RBW

• Phase Noise: –100 dBc/Hz @ 10 kHz offset at 1 GHz

• Frequency Accuracy: < 25 ppb with GPS lock

• 1 Hz to 10 MHz Resolution Bandwidth (RBW)

• Traces: Normal, Max Hold, Min Hold, Average, # of Averages

• Detectors: Peak, Negative, Sample, Quasi-peak, and true RMS

• Markers: 6, each with a Delta Marker, or 1 Reference with 6 Deltas

• Limit Lines: up to 40 segments with one-button envelope creation

DUT

Reference

Receiver

Port 2

Bridge/ Coupler

Switch

• Trace Save-on-Event: crossing limit line or sweep complete

• Option to automatically optimize sweep-RBW-VBW tradeoff for best possible display

• Interference Analyzer Option: Spectrogram, Signal Strength, RSSI

• Burst Detect

• Zero-span IF Output

• Gated Sweep

• GPS tagging of stored traces

• Internal Preamplifier standard

• High Accuracy Power Meter Option

• AM/FM/SSB Demodulation (audio only)

VNA Master Functional Specifications

Definitions

All specifications and characteristics apply under the following conditions, unless otherwise stated:

• After 30 minutes of warm-up time, when the instrument is in VNA Mode and left in the ON state.

• Temperature range is 23 ºC ± 5 ºC.

• All specifications apply when using internal reference.

• All specifications subject to change without notice. Please visit www.anritsu.com for most current data sheet.

• Typical performance is the measured performance of an average unit.

• Recommended calibration cycle is 12 months.

Frequency

VNA Frequency Range: MS2026/36C: 5 kHz to 6 GHz MS2027/37C: 5 kHz to 15 GHz MS2028/38C: 5 kHz to 20 GHz Frequency Accuracy: ±1.5 ppm Frequency Resolution: 1 Hz to 375 MHz, 10 Hz to 6 GHz, and 100 Hz to 20 GHz

Test Port Power

VNA Master supports selection of either High (default) or Low test port power. Changing power after calibration can degrade the calibrated performance. Typical power by bands is shown in the following table.

Frequency Range

5 kHz to ≤ 3 GHz +3 –25

3 GHz to ≤ 6 GHz –3 –25

6 GHz to ≤ 20 GHz –3 –15

High Port Power

dBm, typical)

Low Port Power

(dBm, typical)

Transmission Dynamic Range

The transmission dynamic range (the difference between test port power and noise floor) using 10 Hz IF Bandwidth and High Port Power is shown in the following table.

Frequency Range

5 kHz to ≤ 2 MHz 85

2 MHz to ≤ 3 GHz 100

3 GHz to ≤ 6 GHz 90

6 GHz to ≤ 20 GHz 85

Dynamic Range

(dB)

Sweep Speed

The typical sweep speed for IF Bandwidth of 100 kHz, 1001 data points, and single display is shown in the following table. The three receiver architecture will simultaneously collect S21 and S11 (or S12 and S22 ) in a single sweep.

Frequency Range

5 kHz to 6 GHz 350

6 GHz to 20 GHz 650

Sweep Speed

(µsec/point, typical)

High-Level Noise (S11 or S22, Short, Power = High, IFBW = 200 Hz typical)

Magnitude Phase

0.004 dB(rms) (5 kHz to 6 GHz) 0.040 deg (5 kHz to 6 GHz)

0.010 dB(rms) (6 GHz to 20 GHz) 0.050 deg (6 GHz to 20 GHz)

Noise Floor (Port Power - Dynamic Range)

Frequency Noise Floor (dB, typical)

5 kHz to = 2 MHz Port Power –85

2 MHz to = 3 GHz Port Power –100

3 GHz to = 6 GHz Port Power –90

6 GHz to = 20 GHz Port Power –85

Temperature Stability (S11 or S22, Short, 23 ºC ± 5 ºC, typical)

Magnitude Phase

0.018 dB/ºC (5 kHz to 10 GHz) 0.160 deg/ºC (5 kHz to 10 GHz)

0.070 dB/ºC (10 GHz to 20 GHz) 0.800 deg/ºC (10 GHz to 20 GHz)

Reflection Tracking (S11 or S22)

Frequency Tracking (dB, typical)

< 3 GHz 0.05

3 to 6 GHz 0.10

6 to 20 GHz 0.20

Transmission Tracking (S21 or S12)

Frequency Tracking (dB, typical)

< 3 GHz 0.02

3 to 6 GHz 0.05

6 to 20 GHz 0.40

Source Match* (Anritsu 3652A Cal Kit)

Frequency Match (dB, typical)

5 kHz to 1 GHz 41

1 GHz to 5 GHz 39

5 GHz to 20 GHz 31

Load Match* (Anritsu 3652A Cal Kit)

Frequency Match (dB, typical)

5 kHz to 1 GHz 37

1 GHz to 15 GHz 34

15 GHz to 20 GHz 30

* Valid for MS20xxC, Anritsu 3652 Cal Kit, Port Power = High, No Averaging, IFBW = 1 kHz

VNA Performance Capabilities (MS202x/3xC)

Measurement Parameters

S11, S21, S22, S12, S

, S

d1d

, S

c1c

d1c

c1d

Number of Traces Four: TR1, TR2, TR3, TR4

Trace Format Single, Dual, Tri, Quad. When used with Number of Traces, overlays are possible including a Single Format with Four trace overlays.

Log Magnitude SWR Phase Real Imaginary Group Delay

Graph Types

Smith Chart Inverted Smith Chart Log Mag / 2 (1-Port Cable Loss) Linear Polar Log Polar Real Impedance Imaginary Impedance

Domains Frequency Domain, Time Domain, Distance Domain

Frequency Start Frequency, Stop Frequency, Center Frequency, Span

Distance Start Distance, Stop Distance

Time Start Time, Stop Time

Frequency Sweep Type: Linear Single Sweep, Continuous

Data Points 2 to 4001 (arbitrary setting); data points can be reduced without recalibration.

Limit Lines Upper, Lower, 10-segmented Upper, 10-segmented Lower

Test Limits Pass/Fail for Upper, Pass/Fail for Lower, Limit Audible Alarm

Data Averaging Sweep-by-sweep

Smoothing 0 to 20%

IF Bandwidth 10, 20, 50, 100, 200, 500, 1 k, 2 k, 5 k, 10 k, 20 k, 50 k, 100 k (Hz)

Reference Plane

Auto Reference Plane Extension

The reference planes of a calibration (or other normalization) can be changed by entering a line length. Assumes no loss, flat magnitude, linear phase, and constant impedance.

Instead of manually entering a line length, this feature automatically adjusts phase shift from the current calibration (or other normalization) to compensate for external cables (or test fixtures). Assumes no loss, flat magnitude, linear phase, and constant impedance.

Frequency Range Frequency range of the measurement can be narrowed within the calibration range without recalibration.

Group Delay Aperture

Defined as the frequency span over which the phase change is computed at a given frequency point. The aperture can be changed without recalibration. The minimum aperture is the frequency range divided by the number of points in calibration and can be increased to 20% of the frequency range.

Group Delay Range < 180º of phase change within the aperture

Trace Memory A separate memory for each trace can be used to store measurement data for later display. The trace data can be saved and recalled.

Trace Math Complex trace math operations of subtraction, addition, multiplication, or division are provided.

Number of Markers Eight, arbitrary assignments to any trace

Marker Types Reference, Delta

Marker Readout Styles

Log Mag, Cable Loss (Log Mag / 2), Log Mag and Phase, Phase, Real and Imaginary, SWR, Impedance, Admittance, Normalized Impedance, Normalized Admittance, Polar Impedance, and Group Delay, Linear Mag, Linear Mag and Phase

Marker Search Peak Search, Valley Search, Find Marker Value

Correction Models

Full 2-Port, Full S11, Full S22, Full S11 & S22, Response S21, Response S12, Response S21 & S12, Response S11, Response S22, Response S11 & S22, OnePath Two-Port (S11,S21), One-Path Two-Port (S22,S12)

Calibration Methods Short-Open-Load-Through (SOLT), Offset-Short (SSLT), and Triple-Offset-Short (SSST)

Calibration Standards’ Coefficients

Coax: N-Connector, K-Connector, 7/16, TNC, SMA, and four User Defined Waveguide: WG11A, WG12, WG13, WG14, WG15, WG16, WG17, WG18, WG20, and four User Defined

Cal Correction Toggle On/Off

Dispersion Compensation Waveguide correction that improves accuracy of distance-to-fault data by compensating for different wavelengths propagating at different speeds.

Impedance Conversion Support for 50 Ω and 75 Ω are provided.

Units Meters, Feet

Bias Tee Settings Internal, External, Off

Timebase Reference Internal, External (10 MHz)

File Storage Types Measurement, Setup (with CAL), Setup (without CAL), S2P (Real/Imag), S2P (Lin Mag/Phase), S2P (Log Mag/Phase), JPEG

Ethernet Configuration DHCP or Manual (Static); IP, Gateway, Subnet entries

Languages English, French, German, Spanish, Chinese, Japanese, Korean, Italian, Russian, plus one User Defined

Uncertainty Curves for Round-Trip Cable Loss Measurements (1-Port)

VNA Master (MS20xxC), 5 kHz - 6 GHz

Uncertainty (dB)

Cable Loss, Log Mag / 2 (dB)

VNA Master (MS20xxC), 6 GHz - 20 GHz

Uncertainty (dB)

Cable Loss, Log Mag / 2 (dB)

Round-trip cable loss measurements are convenient for field personnel testing installed cable or waveguide runs. This one-port technique provides one-way data after twice traversing the cable. The following two sets of uncertainty curves, less than 6 GHz on the left and greater than 6 GHz on the right, present worst-case uncertainty by DUT Match (i.e., Log Mag) when using VNA Master for one-port cable loss measurements. As a practical tip, consider using a two-port transmission measurement technique to improve upon these one-port cable loss uncertainties.

0.1

One Port Cable Loss (Log Mag / 2) Uncertainty vs. DUT Match

-20 dB

-25 dB

-30 dB

0.1

One Port Cable Loss (Log Mag / 2) Uncertainty vs. DUT Match

-20 dB

-25 dB

-30 dB

These uncertainty curves show how frequency range, DUT Match, and cable loss impact worst-case uncertainty of round-trip cable loss measurements. The uncertainty curves, separated by frequency range, are shown for DUT Match cable loss conditions of -20 dB, -25 dB, and -30 dB. For DUT Match of 30 dB and cable loss of 4 dB to 5 dB (reflection measurement of 8 dB to 10 dB) the worst-case uncertainties are approximately ± 1 dB.

High Port Power

OSLxx50 Calibration Components (N-Connectors)

Corrected System Performance and Uncertainties: MS202x/3xC Models with 12-term SOLT calibration including isolation using either OSLN50 & OSLNF50 or OSLK50 & OSLKF50 Calibration Kits

Precision calibration standards come in a convenient configuration for field work.

Frequency Range (GHz) Directivity (dB)

≤ 5 > 42

≤ 15 > 36

≤ 20* > 32

Frequency Range (GHz) Typical High Port Power (dBm)

≤ 3 +3

≤ 6 –3

≤ 20 –3

* N Connector guaranteed to 18 GHz, typical > 18 GHz

Measurement Uncertainties

The following graphs provide measurement uncertainty at 23 ºC ± 5 ºC for the above indicated connector type and calibration. Errors are worse-case contributions of residual directivity, source match, frequency response, network analyzer dynamic range, and connector repeatability. Transmission tracking, crosstalk, and physical load termination were added for two-port measurements. Isolation calibration and an IF Bandwidth of 10 Hz are used.

S11 Magnitude

Uncertainty 5 kHz to 20 MHz

Uncertainty 20 MHz to 3 GHz

Uncertainty 3 GHz to 6 GHz

Uncertainty 6 GHz to 20 GHz

0.1

S21 Magnitude

Uncertainty 5 kHz to 20 MHz

Uncertainty 20 MHz to 3 GHz

Uncertainty 3 GHz to 6 GHz

Uncertainty 6 GHz to 20 GHz

0.1

-40 -35 -30 -25 -20 -15 -10 -5 0

100

-40 -35 -30 -25 -20 -15 -10 -5 0

S11 Phase

Uncertainty 5 kHz to 20 MHz

Uncertainty 20 MHz to 3 GHz

Uncertainty 3 GHz to 6 GHz

Uncertainty 6 GHz to 20 GHz

0.01

-80 -70 -60 -50 -40 -30 -20 -10 0

100

0.1

-80 -70 -60 -50 -40 -30 -20 -10 0

S21 Phase

Uncertainty 5 kHz to 20 MHz

Uncertainty 20 MHz to 3 GHz

Uncertainty 3 GHz to 6 GHz

Uncertainty 6 GHz to 20 GHz

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