Table Of Contents

mmWave OTA Validation Test Reference Architecture Datasheet

Version:
Last Modified: February 23, 2021

Definitions

Warranted specifications describe the performance of a model under stated operating conditions and are covered by the model warranty. Warranted specifications account for measurement uncertainties, temperature drift, and aging. Warranted specifications are ensured by design or verified during production and calibration.

Characteristics describe values that are relevant to the use of the model under stated operating conditions but are not covered by the model warranty.

  • Typical specifications describe the performance met by a majority of models.
  • Nominal specifications describe an attribute that is based on design, conformance testing, or supplemental testing.
  • Measured specifications describe the measured performance of a representative model.

Specifications are Measured unless otherwise noted.

Conditions

Specifications are valid under the following conditions unless otherwise noted:

  • 30 minutes warm-up time
  • Hardware is within its 1-year calibration interval
  • Hardware temperature is within ±5 °C of the last self-calibration temperature

mmWave OTA Validation Anechoic Chamber

Content applies to all mmWave OTA Validation Anechoic Chamber options unless otherwise noted.

Content applies to the DFF chamber.
Content applies to the CATR chamber.

Physical Characteristics

Chamber Revision A

Dimensions (L × W × H)

Exterior, including handles

795 mm × 970.8 mm × 1,295 mm (31.29 in. × 38.22 in. × 50.98 in.)

Interior

520 mm × 770 mm × 920 mm (20.47 in. × 30.31 in. × 36.22 in.)

Crate

906 mm × 1,130 mm ×1,530 mm (35.7 in. × 44.4 in. × 60.3 in.)

Weight

Net

180 kg (396.83 lbs)

Gross

333 kg (734.19 lbs)

Vent clearance, left and right side

115 mm (4.52 in.)

Chamber Revision B

Dimensions (L × W × H)

Exterior, including handles

795 mm × 970.8 mm × 1,415 mm (31.29 in. × 38.22 in. × 55.70 in.)

Interior

520 mm × 770 mm × 920 mm (20.47 in. × 30.31 in. × 36.22 in.)

Crate

1,020 mm × 1,300 mm ×1,620 mm (40.15 in. × 51.18 in. × 63.77 in.)

Weight

Net

201 kg (443.12 lbs)

Gross

379 kg (835.55 lbs)

Vent clearance, left and right side

600 mm (23.62 in.)

RF Isolation

Shielding effectiveness

800 MHz to 8 GHz

>70 dB

8 GHz to 44 GHz

>70 dB

Absorber Performance

Reflectivity

-30 dB

I/O

Top Bulkhead

1A through 4A

Number of ports

4

Connectors

2.4 mm (female)

Maximum input power

+30 dBm

1B through 4B

Number of ports

4

Connectors

2.92 mm (female)

Maximum input power

+30 dBm

Rear Bulkhead

1A through 2A

Number of ports

2

Connectors

2.4 mm (female)

Maximum input power

+30 dBm

1B through 2B

Number of ports

2

Connectors

2.92 mm (female)

Maximum input power

+30 dBm

DC RF filter

Number of ports

8

Connector

5.08 mm

Maximum voltage

24 VDC

Maximum current

4 A

USB

Type

USB 3.0 filter, type A (male)

Thermocouple

Number of ports

2

Type

T

Additional I/O on Chamber Revision B Rear Bulkhead

3A through 4A

Number of ports

2

Connectors

2.4 mm (female)

Maximum input power

+30 dBm

3B

Number of ports

1

Connectors

2.92 mm (female)

Maximum input power

+30 dBm

Side Control Panel

Network port

Standard

IEEE 802.3 Ethernet, 10BASE-T, 100BASETX, 1000BASE-T

Interface

RJ45

Speed

10 Mbps, 100 Mbps, 1000 Mbps

USB

Type

USB 2.0, Hi-Speed

Speed

480 Mbit/s

Maximum current

1 A

VGA

Maximum resolution

1920 × 1200 at 60 Hz

Environmental Characteristics

Temperature

Operating

0 °C to 40 °C

Storage

0 °C to 50 °C

Relative humidity range

Operating

30% to 70%, noncondensing

Power Requirements

Maximum power consumption

250 W

Input voltage range

100 VAC to 220 VAC, (50/60 Hz)

Output voltage range

100 VAC to 220 VAC, (50/60 Hz)

Output power range

0 A to 3 A

Laser Characteristics

Wavelength

635 nm

Output power

<1 mW

Positioning System

Far field distance

Positioner to measurement antenna

594 mm

Positioner to top bulkhead

750 mm

Angular resolution

±0.01° azimuth/elevation

Positioner absolute accuracy

±0.5° azimuth/elevation

Range

±180° azimuth/elevation

Rotational speed, per second

300°

Supported DUT weight

1.2 kg (2.64 lbs)

Supported DUT size

160 mm × 330 mm × 330 mm (6.29 in. × 13 in. × 13 in.)

Control interface

Ethernet

Operating temperature range

0 °C to 40 °C

Material

DuPont Derlin acetal resin

Measurement Antenna

Content applies to the DFF chamber.

Model

AQRH-15-2.4F

Manufacturer

Bojay

Frequency range

18 GHz to 44 GHz, nominal

Polarization

Dual

Connectors

2.4 mm (female)

Gain

12 dBi to 16 dBi

Port-to-port isolation

30 dB

Impedance

<2:1 VSWR

Dimensions (W × L × D)

32.2 mm × 32.2 mm × 61.5 mm (1.26 in. × 1.26 in. × 14.23 in.)

Weight

292 g (10.3 oz)

Temperature

Operating

0 °C to 40 °C

Storage

0 °C to 50 °C

Figure 1. Gain
Figure 2. VSWR

Feed Antenna

Content applies to the CATR chamber.

Manufacturer

WavePro Inc.

Frequency range

24 GHz to 42 GHz

Polarization

Dual

Connectors

2.4 mm (female), (x2)

Net weight

400 g (14.1 oz)

Humidity

Operating

10% to 90% RH, noncondensing

Storage

5% to 95% RH, noncondensing

Maximum altitude

2,000 m (at 25 °C ambient temperature)

Reflector

Content applies to the CATR chamber.

Manufacturer

WavePro Inc.

Frequency range

24 GHz to 110 GHz

Quiet zone[1]

Size

20 cm

Amplitude taper

< 1.5 dB

Amplitude ripple

< 0.5 dB

Dimensions (L × W)

40 mm × 40 mm (1.57 in. × 1.57 in.)

Net weight

12.2 kg (26.89 lbs)

Humidity

Operating

10% to 90% RH, noncondensing

Storage

5% to 95% RH, noncondensing

Maximum altitude

2,000 m (at 25 °C ambient temperature)

Reference Antenna

Model

DRH50

Manufacturer

RFspin

Frequency range

4.5 GHz to 44 GHz, nominal

Polarization

Single

Connector

2.4 mm (female)

Gain[2]

6 dBi to 20.5 dBi

Cross polarization

>30 dB

Impedance

<1.55:1 VSWR

Dimensions (W × L × D)

43.8 mm × 38 mm × 157.7 mm (1.72 in. × 1.49 in. 6.20 in.)

Weight

70 g (2.46 oz)

Mounting

Adapter with 0.25 in. inner thread

Temperature

Operating

0 °C to 50 °C

Storage

-20 °C to 70 °C

Figure 3. Gain
Figure 4. VSWR

Instrumentation

Detailed specifications for the following instruments are available online at ni.com/manuals.

System Performance

Conditions in Autonomous Mode

System performance measurements are valid under the following conditions:

  • Configured frequency: 28 GHz
  • Configured measurements: Single-tone
  • Number of beams: 1
  • Positioner speed: 100%
  • Sweep order: Azimuth then elevation
Table 1. Autonomous Position Sweeping
Conditions Number of Points Measurement Time
  • Azimuth 360° in 1° steps
  • Elevation 180° in 1° steps
62,298 575 seconds
  • Azimuth 360° in 5° steps
  • Elevation 180° in 1° steps
12,459 365 seconds
  • Azimuth 360° in 4° steps
  • Elevation 180° in 4° steps
4,016 105 seconds
  • Azimuth 360° in 10° steps
  • Elevation 180° in 10° steps
681 45 seconds

Measurements

Conditions

  • System calibration is performed as specified in the mmWave OTA Validation Test Reference Architecture User Manual
  • Self-calibration is performed before system calibration
  • System calibration is performed 10 times, and the reference antenna and all cables are disconnected between each calibration in multi-day span
  • RF cables included in the mmWave OTA Validation Accessories Kit are used

Content applies to the DFF chamber.

Performance[3]

Relative accuracy[4]

0.5 dB

SG pathloss

13.5 dB to 18 dB

24 GHz to 44 GHz

SA pathloss + FSPL

47 dB to 50 dB

24 GHz to 44 GHz

EVM[5]

-37 dB

Content applies to the CATR chamber.

Performance

Relative accuracy

0.5 dB

SG pathloss

10 dB to 15 dB

24 GHz to 42 GHz

SA pathloss + FSPL

55 dB to 62 dB

24 GHz to 42 GHz

  • 1 Quiet zone data is obtained with a frequency range of up to 42 GHz.
  • 2 Calibration data is provided with the QR code on the antenna.
  • 3 All performance values are presented as a 1σ standard deviation.
  • 4 Relative accuracy is the expected repeatability of EIRP measurements in the mmWave OTA Validation Anechoic Chamber based on system calibration.
  • 5 EVM using 5G NR, 100 MHz bandwidth, 120 kHz SCS, FR2, 64 QAM + number of additional DMRS = 2, at -12 dBm input power to the reference antenna, 28 GHz, boresight.

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