RF Anechoic Chambers, Mini Anechoic Test Boxes & Antenna Chambers
Shielded RF anechoic chambers, mini anechoic chambers and portable anechoic test boxes designed in India. Pyramidal absorber lining up to 40 GHz.
LabiFix designs and manufactures the RF anechoic chamber for engineers who need free-space conditions at the bench or in the lab: a shielded anechoic chamber lined with pyramidal and hybrid ferrite absorber, from a mini anechoic chamber for handset OTA to larger walk-in rooms.
Anechoic chamber RF testing here means repeatable radiated measurements, isolated from ambient interference.
- 90–100 dBShielding
- >20 to >45 dBAbsorber reflection loss
- 100 MHz–40 GHz+Frequency coverage
The shielded outer shell gives 90 to 100 dB isolation per IEEE-299 and MIL-STD-285, while the absorber lining provides 20 dB to more than 45 dB reflection loss depending on the pyramid height and ferrite hybrid selection. Frequency coverage runs from 100 MHz to 40 GHz and beyond with the right absorber.
Anechoic Chamber Specifications
| Parameter | Typical LabiFix specification |
|---|---|
| Frequency range | 100 MHz to 40 GHz+ (absorber dependent) |
| Shielding effectiveness | >90 to >100 dB, IEEE-299 / MIL-STD-285 |
| Absorber type | Pyramidal polyurethane, ferrite tile and hybrid |
| Absorber reflection loss | >20 dB up to >45 dB at normal incidence |
| Quiet zone | Sized to the antenna aperture and test distance |
| Installation | Turnkey design, installation and calibration |
Anechoic Chamber Antenna Measurement & OTA Validation
An anechoic chamber antenna setup uses horn, Vivaldi and dual-polarised measurement antennas with a positioner to capture 3D radiation patterns, gain, efficiency, TRP and TIS. The same chamber supports Wi-Fi 6E/7, Bluetooth LE and 5G NR over-the-air validation.
- Horn, Vivaldi and dual-polarised probe antennas.
- TRP / TIS and 3D antenna radiation pattern measurement.
- Phone, wearable, IoT and base-station OTA test plans.
Small Anechoic Chambers & Anechoic Test Boxes
A small anechoic chamber or anechoic test box brings OTA capability to the bench. Compare current LabiFix models below, then request a configuration.
| Model | Best for | Link |
|---|---|---|
| LBX9500 | 5G mmWave and OTA test enclosure | View LBX9500 |
| LBX7900 | R&D shielded enclosure, up to 18 GHz | View LBX7900 |
| LBX7200 | Bluetooth and wireless antenna pre-tests | View LBX7200 |
| LBX1870 | Manual benchtop RF shielding box | View LBX1870 |
Installation, Calibration and Support
Walk-in chambers include site survey, structural design, shielding verification and absorber calibration. See our services for commissioning and service plans, and compare options in the shielded chamber vs anechoic guide.
Frequently Asked Questions
What is an RF anechoic chamber?
What is a mini anechoic chamber used for?
Custom engineered to your specification
Share your DUT size, frequency range and I/O needs for a tailored configuration.