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Millimeter Wave Terminal Performance Test System

Millimeter_wave_terminal_performance_test_system.png

For 5Gmm-wave application scenarios, 3GPP TR38827 defines five-channel models for UMi (Urban Micro) CDL A~E of urban micro-base station and InO (Indoor Office) CDL A~E of indoor micro-base station. The purpose is to build a reconfigurable channel environment in the laboratory and verify the scene performance of base stations and terminals.


In order to achieve the above application scenario test in the laboratory, this test system has a perfect experimental environment such as a millimeter-wave full-band anechoic chamber, three-dimensional reconfigurable probe wall, millimeter-wave antenna, millimeter-wave frequency converter, and high-precision turntable. By accessing 5G core network and base station devices (or using base station emulator), using advanced instruments such as high-end channel simulator, it fully supports 5Gmm-wave mainstream band, supports all millimeter-wave channel fading models of 3GPP, and supports communication performance test of 5G base station, terminal, chip, and other morphological devices.


Using compact field technology, the system works with a base station emulator, spectrum analyzer, signal source, and terminal device to complete radiofrequency consistency test items defined by 3GPP 38521-2.

The millimeter-wave probe antenna of this system complies with the distance and angle layout requirements of 3GPP TR38827 by verifying the following channel model parameters in the test area:


Power Delay Profile (PDP)


Doppler/Temporal correlation


PAS similarity percentage (PSP)


Cross-polarization


Power validation


Finally, the similarity of laboratory channel environment is verified according to the channel verification criteria of 3GPP.

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Probe Number

Theta/ZoA [deg]

Phi/AoA

[deg]

1

90

75

2

85

85

3

85

55

4

85

95

5

95

95

6

90

105

A complete millimeter terminal performance test system includes:


  • RS Test

  • Probe wall

  • Probe antenna

  • Millimeter-wave frequency converter

  • Multi-axis turntable


Key features

  • A single millimeter-wave frequency converter integrates two independent radio frequency channels.

  • Flexible position of probe antenna;

  • Integrated design;

  • Mobile design;

    Millimeter_wave_terminal_performance_test_system-4.png

    This test system is a turn-key solution. You can test Throughput VS time by simply placing the terminal device on the turntable and configuring the relevant test scenario in the PC interface.

    technical parameter

    Item

    Parameter

    Remark

    System

    Size

    Lm*Wm*Hm(shell)

    Lm*Wm*Hm(roller)


    Weight

    <2T


    Frequency

    24~44GHz


    Shielding effectiveness

    >90dB


    Test area

    >20cm


    Antenna

    QTY

    6


    Frequency

    24~44GHz


    Polarization

    Bipolarization


    Port isolation

    >30dB


    VSWR

    <1.7

    Typ.

    Gain

    4dBi

    Typ.

    Beam width(3dB)

    25°@


    Cross Polarization Ratio

    >30dB


    Multi-axis positioner

    Axis

    2


    Angle range

    Azimuth axis: 0 ~ 360 degrees

    Polarization axis: 0 ~ 360 degrees


    Angle step

    ≥0.1°


    Angular Precision

    <±0.05°


    Repetition accuracy

    <±0.05°


    Speed

    ≤20°/s


    Bearing

    >20kg


    Millimeterwave Upconverter

    RF Frequency

    24~31GHz


    RF input power

    <-5dBm


    Gain flatness

    <1.25dB@BW400MHz


    IF Frequency

    2~6GHz


    Switching time

    <2us


    Power adjustment range

    30dB


    Local-oscillator input power

    >0dBm



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Hangzhou Yongxie Technology Co., Ltd.
HBTE develops, produces and markets a wide range of RF capital devices for industry, infrastructure operators,
education and research institutions customers.
Hangzhou Yongxie Technology Co., Ltd.
HBTE develops, produces and markets a wide range of RF capital devices for industry, infrastructure operators, education and research institutions customers.