PIM Measurements: Vector-PIM NA-PIM2

Our improved product Vector-PIM generation NA-PIM2 (second generation) allows you to perform calibrated complex PIM measurements based on our mixed-frequency VNA-modules and the newest Rosenberger test-sets from 275 MHz up to 6000 MHz. This vector PIM tester is the leading solution for 

  • National metrology institutes
  • Companies with metrology departments
  • Universities and research institutes 

 This instrument supports:

    • Very accurate and sensitive vector PIM measurements,
    • Localisation of IM-obstacles,
    • Exact modelling of IM-defects,
    • Frequency, time and power sweeps,

The Heuermann HF-Technik GmbH and Rosenberger Hochfrequenztechnik introduced the second full vector PIM-tester generation. Vector-PIM allows accurate PIM-measurements including the detection of the distance to an IM-obstacle. This instrument provides for the first time the foundation to measure the complex transfer functions of different IM-sources. This information helps to identify IM-sources and to reduce the IM-defects.
The high accuracy is achieved with the novel VNA-calibration procedure Without Thru. Without Thru uses only one-port calibration standards (short, open, match, a comb generator, and a power sensor) at each port.
The software manages this calibration, the error correction, and supports various PIM-tests as well as different frequency, power and time sweeps.

Fig. 1: Photo of the full PIM analyzer for vector measurements with the high dynamic mixed-frequency HHF-VNA-modules

More details to the product are to find in NonLin-IM NA-IM2, what controls the test-set.

This Vector-PIM-Tester features in detail:

    • First non-linear multi-port S-parameter test system for vectorial measurements.
    • Supports all test-sets from Rosenberger Hochfrequenztechnik.
    • Special software supports three IM-test configurations.
    • The non-linear calibration procedure Without Thru for mixed-frequency modules from HHF.
    • Allows the measurement of non-linear effects in an accurate and complex manner.
      • Phase values help to find the location of non-linear effect supported by a special software.
      • VNA phase information gives perfect time domain results for a very good modelling.
    • Supports frequency-, power- and time-sweep measurements
Fig. 2: Photo of the vector-PIM-tester from the backside

The measurement performance

    • is supported by a complex temperature management, allowing a very high reproducibility. Most of the HHF electronic and the electronic from Rosenberger is in the same housing.
    • is based on a small PIM-magnitude-error of approximately 0.1-0.2 dB (scalar measurements have errors of 2 dB and more).
    • for the PIM-phase is based on a small error of typically 1%.
    • depends from the test-set (selectivity of filters) regarding the measurement time.
    • is depending from the measurement time (typically 1-5 seconds for one measurement sweep).
    • allows to find PIM-obstacles with a solution of 1-2cm (depends on bandwith of the test-set).
    • is based on a VNA which allows to support a typical dynamic of 180dBc.
    • allows the model the PIM-obstacles and to characterize the obstables in the different physical phenomenons.

We offer a system composed of

    • Rosenberger test-set (necessary),
    • Software with dongle and operation manual (necessary),
    • Laptop with LAN-connection to VNA (software installed),
    • One RX- and 2 TX-modules from HHF (VNA-Modules – HHFT),
    • Coaxial calibration kit (7/16) from Rosenberger,
    • Power sensor from Rohde and Schwarz,
    • Calibrated comb-generator (necessary),
    • Industry rack with integrated comb-generator and power sensor.

Phase reference generator are for the following frequency ranges available

More details are explained in the operation manual of the first generation: NonLin-IM operation manual

More information are available from Info@HHFT.de.