PIM-Tester: Vector-PIM NA-PIM1

Our product Vector-PIM allows you to perform calibrated complex PIM measurements. This instrument supports:

    • Accurate 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 first full vector PIM-tester. 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 laboratory set-up for vector measurements with a ZVA

More details to the product are to find in NonLin-IM NA-IM1, what controls the test-set.

Vector-PIM 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 procedures LMR for all multi-port VNAs and Without Thru for R&S-VNAs.
    • 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
    • Fast and easy installation with pre-installed laptop or on your network analyzer.
Fig. 2: Photo of the full PIM industry set-up for vector measurements with a ZVA

The measurement performance

    • 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 3-10 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 157dBc.
    • 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),
    • ZVA-VNA from Rohde and Schwarz (we use also your ZVA or ZVM),
    • 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 generators are for the following frequency ranges available:

    • SG 0615: 600 MHz – 1500 MHz,
    • SG 1024: 1000 MHz – 2400 MHz,
    • SG 1327: 1300 MHz – 2700 MHz,
    • SG 2633: 2550 MHz – 3250 MHz,
    • SG 3135: 3090 MHz – 3500 MHz,
    • SG 3542: 3500 MHz – 4200 MHz.

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

More information are available from Info@HHFT.de.

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