Mixed Mode Multi-Port Vector Network Analyzer - (MMVNA)
The MMVNA performs mixed-mode S-parameter testing in single-ended or dual-ended configuration. The easy to customize Linux based programming interface, and configurable measurement parameters make MMVNA an ideal tool for automotive cabling test.
Overview
Mixed Mode Multi-Port VNA (MMVNA) is a portable vector network analyzer that is purpose-built for characterizing twisted pair and coax cables and components. Balanced transmission is finding increasing adoption. MMVNA is a user friendly, versatile analyzer that is most often deployed in manufacturing and lab tests of IoT applications, specialty sensor connections and automotive wiring harness testing.
In a matter of seconds, the MMVNA can measure 256 different S-parameter combinations in a single measurement sweep. The VNA Manager software provides an easy way to configure required S-parameters and arrange them in convenient views and reports. MMVNA is IP addressable, so you can ensure uniform testing methodology across distributed locations with remote configuration capability.
Contact us at customercare@aem-test.com for more information and to schedule a virtual product demonstration.
Advantages
Compact and extensible–8-port form-factor extensible to higher port densities in multiples of 8. Primarily used in laboratory and manufacturing environments for automotive wiring harness and telecommunications cable testing.
4x Differential Measurement Ports–Each port features its own transmitter and receiver, enabling fast, concurrent measurements on all ports. For application such as harness testing, this means a considerable saving of table space and test time.
Scalable Measurement System–The VNA Manager software can control and collect data from multiple MMVNA units and make uniform presentation. This is particularly helpful in testing complex multi-wire harnesses with a single measurement command.
Remote management–The MMVNA is IP addressable enabling remote management and data acquisition for inline manufacturing testing.
Test configurations–DUT end points are not required to connect to common test interface. The 16-port option is deployed as two 8-port devices that communicate over the DUT rather than fixed backplane enabling assembly and cable testing where ends are spatially separated.
Standards Compliant–Adheres to Open Alliance, BroadR-Reach, 802.3bw, 802.3bp and 802.3ch (draft) for the following s-parameter tests:
- Link segments and components; cables, connectors, and wire harnesses
- Open Alliance VNA Reference Measurements
- Equipment connector interfaces (ECU, MDI)
- Transmitter’s and receiver’s
VNA Manager–The companion VNA Manager is the control software for the MMVNA settings of all S-Parameters, test initiation and saving of test data. Touchstone and comma separated variable (csv) measurement data output format.
Products
For fixtures, adapters & cable assemblies, please contact us with your specific needs:
Examples:
- SMA to Cat6A RJ45 Jack
- SMA to SMB
- SMA to FAKRA
- SMA to MMCX
- VNA_OCC_FIXTURE
MMVNA-200 K02SW
A pair of MMVNA-200 units and 8 x coaxial cords (60 cm), site license of VNA Manager software for analyzer configuration and reporting.
MMVNA-200 K01SW
Single MMVNA-200 unit and 8 x coaxial cords (60 cm), site license of VNA Manager software for analyzer configuration and reporting.
MMVNA-200 K02
A pair of MMVNA-200 units and 8 x coaxial cords (60 cm)
MMVNA-200 K01
Single MMVNA-200 unit and 8 x coaxial cords (60 cm)
VNA_MANAGER 10
Companion management software for S-parameter configuration, data capture and reporting. Compatible with MMVNA model 100 and 200. Site license.
MMVNA-CALKIT
Calibration kit for MMVNA model 100 and 200
Capabilities
MMVNA-200 is optimized for large scale testing. One more more MMVNA-200 units can be controlled using either USB or Ethernet connection. Running on linux, MMVNA-200 acts like a networked device enabling easy and flexible control and data exchange over network. Running on single 5V power supply, MMVNA-200 consumes less than 10W of power.
VNA Manager software runs on a PC connected to the MMVNA-200 and provides all configuration, control, data collection, data presentation and storage functions. This user-friendly software is quite versatile in enabling effective use of vast amount of S-parameter measurement data generated by the MMVNA.
– One Click Autotest makes it convenient for production environment.
– Configurable IP Address for MMVNA allows connecting of multiple MMVNA’s to PC for integrated control.
– Command Line Interface support for integrating with Automated Test environment.
– Supports Single Ended & Dual Ended Test Configuration.
– Supports CSV and Touchstone export of Test Results.
MMVNA performs DC measurements that are useful in troubleshooting and verification of Device Under Test (DUT).
- DC measurements are performed dual-ended by a main and a remote MMVNA unit. Supports Pass/Fail for Cable Mapping & Connectivity
- End-to-end connectivity (wiremap) and resistance of every wire are measured with high accuracy
- Supports Pass/Fail for Cable mapping & connectivity
The MMVNA performs vector S-parameter measurements on as many as 256 parameters at once. With this powerful configuration tool, you can:
– Configuration files supports deployment of Test Setup to MMVNA’s across distributed production sites.
– Refer to measurements by names familiar to you
– Decide which measurements get plotted in which tab
– Apply pass-fail limits according to your requirements
– Choose the domain of plot (time-domain, frequency domain)
– Choose to view either magnitude, real or imaginary part or phase of the measurement
MMVNA has 4 differential/single-ended transmitters and 8 receivers. In every sweep, MMVNA measures all 32 differential-to-single-ended, all 16 differential-to-differential, and all 16 differential-to-common mode parameters in vector form. When dual-ended testing is performed, same number of additional main-to-remote channel parameters are measured by each end. The configuration software provides convenient user interface to pick useful parameters among all measurements available.
Dual-ended measurement enables measurement of far-end parameters. These S-parameters are commonly referred to as insertion loss and FEXT (far-end cross-talk). MMVNA measures all combinations of these parameters from both main and remote units with the far end transmission against IEEE 802.3bw limits. A utility to perform “set reference” provides zero reference for dual-ended measurements.
S11 parameters represent reflection signal. Due to its unique reflectometer design, MMVNA measures mixed mode S11 parameters (return loss, TCL) with high accuracy.
In addition to insertion loss, the MMVNA also provides measurement of mode conversion parameters at far end (typically referred to as TCTL).
Coupling between ports is measured for all combinations at near-end and far-end (NEXT and FEXT). Near-end coupling measurements are vector measurements, allowing time-domain view to troubleshoot. All coupling parameters are measured in mixed mode, giving insight into mode conversion in coupling.
MMVNA allows performing fast sweep for high productivity in manufacturing testing. A decent 80dB measurement floor is sufficient for most manufacturing test application where the intention is to verify that the product is within the expected performance. For more accurate testing with up to 110dB measurement floor, the user can configure high depth measurement.
MMVNA allows user-defined calibration. A variety of calibration kits suitable for specific DUTs are available as option. User can develop their own calibration kit as well. OPEN, LOAD, SHORT and THRU multi-port calibration can be performed by the user.
Specifications
| Parameter | Specifications |
|---|---|
| Frequency Range | 0.1 -3,000 MHz |
| Frequency Resolution | 0.01 MHz |
| Frequency Accuracy | ± 2 ppm |
| Test Ports (single ended) | 4 (differential)/ 4 (single ended) |
| Test Ports (dual ended) | 8 (differential) |
| IF bandwidth | 100 Hz (range setting = 7) |
| Test Interface | SMA (female) |
| Impedance of Test Port | 50 Ω (single ended) 100 Ω (differential) |
| Test Port power output | -1.0 dBm |
| Max DC voltage at Test port (damage level) | 60 V |
| Sweep Speed | 0.3 msec/step (80 db noise floor) 3.4 msec/step (110 db noise floor) |
| RF Measurement Parameters | Differential-to-single ended return loss (SSD,x+/-,x) Differential-to-single ended cross-talk (SSD,y+/-,x) Differential-to-differential return loss (SDD,xx) Differential-to-differential cross-talk (SDD,yx). Differential to common mode return loss (TCL) (SCD,xx) Differential to common mode transmission (TCTL) (SCD,xx) Differential to common mode cross-talk (SCD,yx) |
| RF Measurement Parameters – Double Ended | Differential-to-single ended return loss and cross-talk. Differential-to-differential return loss and cross-talk. (near-end and far-end). Differential Insertion loss, differential to common-mode insertion loss |
| Measurement Floor – Cross-Talk (regular sweep mode) | 100 dB @ 0.1MHz 105 dB @ 1MHz 105 dB @ 100MHz 95 dB @ 600MHz 85 dB @ 1000MHz 50 dB @ 3000MHz |
| Measurement Floor- Return Loss (regular sweep mode) | 60 dB @ 0.1MHz 60 dB @ 1MHz 60 dB @ 100MHz 50 dB @ 600MHz 40 dB @ 1000MHz 15 dB @ 3000MHz |
| Dynamic Range transmission measurements (regular sweep mode) | 90 dB @ 0.1MHz 100 dB @ 1MHz 100 dB @ 100MHz 95 dB @ 600MHz 85 dB @ 1000MHz 50 dB @ 3000MHz |
| Accuracy – Transmission measurements (regular sweep mode) mid dynamic range measurements | ± 0.2 dB @ 0.1MHz ± 0.1 dB @ 1MHz ± 0.1 dB @ 100MHz ± 0.1 dB @ 600MHz ± 0.3 dB @ 1000MHz ± 0.5 dB @ 3000MHz |
| Accuracy – Reflection measurements mid dynamic range measurements | ± 0.4 dB |
| Directivity | 40 dB @ 0.1MHz 60 dB @ 1MHz 60 dB @ 100MHz 45 dB @ 600MHz 30 dB @ 1000MHz 25 dB @ 3000MHz |
| Tracking error | 0.05 dB (0.1 to 1000MHz) |
| Source Return Loss | 50 dB @ 1MHz 40 dB @ 100MHz 20 dB @ 1000 MHz |
| Insertion Loss Measurement range-dual ended | 80 dB @ 0.1MHz 80 dB @ 1MHz 70 dB@ 100 MHz 65 dB @ 1000 MHz 40 dB @ 3000 MHz |
| DC Measurement Parameters – Double Ended | End-to-end connectivity (wiremap) DC resistance pair-to-pair and wire-to-wire resistance unbalance |
| DC Resistance Measurement Range | 0 – 100 Ω (± 0.5 Ω) |
| DC Resistance measurement resolution | 0.1 Ω |
| File Format for S-parameter results | CSV and Touchstone (s8p, s16p) |
| Plots | frequency domain S-parameter (magnitude) time-domain impulse response (linear or dB) time-domain step response (impedance or dB) phase v/s frequency, real part v/s frequency, imaginary part v/s frequency ACRF, PSACRF for dual ended tests power sum measurements of selected combinations of S-parameters |
| size | 17.5cm (Depth) x 16.5cm (Width) x 5.5cm (Height) |
| File Format for S-parameter results | CSV and Touchstone (s8p, s16p) |
| weight | 1.0 kg |
| power supply | 5V DC adapter |
| Power consumption | 8 W |
| Battery Operation | 8 hours with full charge and 1 test/min |
| Connectivity | USB, 10/100/1000 Ethernet |
| Operating System | Linux |
| Operating Temperature | 0 °C to 45 °C |
| Storage Temperature | -50 °C to +70 °C |
| Humidity | 90 % at 25 °C |
| Atmospheric pressure | 70.0 kPa to 106.7 kPa |
