The Anechoic Chamber Suite, consisting of a radio frequency-shielded, EM absorber-lined chamber (10.3 x 6.8 x 3.7 m) and measurement equipment, enables simultaneous exploration of radiation, near-field, and far-field interactions of antennas and objects under test. This unique facility covers a wide frequency range from 900 MHz to 500 GHz.
Modular software and a PC control the Vector Network Analyzer (VNA), translational, and rotational stages, automating the measurement acquisition process. The software allows for the reconstruction of antenna radiation patterns from far-field (FF) and spherical near-field (SNF) measurements and supports the exploration of 3D monostatic and bistatic scattering profiles. Additionally, the software is fully customizable and scriptable to support non-standard measurements.
A VNA with a large dynamic range is used to coherently generate and detect RF signals from 900 MHz to 50 GHz. For frequencies beyond 50 GHz, frequency extender heads (add-on modules) are used to extend the VNA’s operational frequency range into the upper mm-wave bands, up to 500 GHz.
Key equipment:
- Rohde&Schwartz ZNA50 4 port Vector Network Analyzer (10 MHz – 50 GHz).
- Rohde&Schwartz and VDI Frequency Extension Modules (50 GHz – 500 GHz).
- Radio frequency shielded, and EM absorber lined chamber (10.3 x 6.8 x 3.7 m).
- Three platforms, each equipped with a stack of high-precision electromechanical stages, provide rotational and translational degrees of freedom for mounting antennas, RCS targets, or (meta-)material samples. Two of these platforms are moveable: one on a semicircular rail to support a feed for radar cross-section (RCS) measurements and the second on a linear rail to allow reconfiguration between far-field, RCS, and near-field measurement modes, providing either another feed location or support for a target or material.
Frequency Range/Dynamic Range
|
Frequency, GHz
|
1
|
2
|
4
|
8
|
12
|
18
|
26
|
40
|
50
|
75
|
110
|
140
|
220
|
330
|
|
Dynamic Range, dB
|
94
|
84
|
82
|
72
|
72
|
90
|
71
|
88
|
90
|
86
|
83
|
80
|
76
|
63
|
Our services
At the Anechoic Chamber suite, we offer a flexible range of services for industrial and academic research and development projects. Our equipment enables the exploration of simultaneous radiation, near-field, and far-field interactions of antennas and nearby objects, covering a frequency range from 900 MHz to 500 GHz.
It is uniquely equipped for electromagnetic (EM) characterization of antennas and novel EM structures (e.g., metasurfaces) and EM scattering in a controlled, reconfigurable environment.
The chamber, mechanically isolated from the building with vibrationally damped foundations and lined with absorber panels rated up to 500 GHz, provides seamless hardware-software integration for automated, high-precision measurements with a large dynamic range.
We also provide technical support for system usage and software tools.
Frequency Bands and Antennas
| Band |
L |
L, S |
S |
C |
C |
X |
Ku |
K |
Ka |
V |
V |
W |
mm |
mm |
mm |
| Frequency min, GHz |
1.1 |
1.7 |
2.6 |
3.95 |
5.85 |
8.2 |
12.4 |
18 |
26.5 |
40 |
50 |
75 |
110 |
140 |
220 |
| Frequency max, GHz |
1.7 |
2.6 |
3.95 |
5.85 |
8.2 |
12.4 |
18 |
26.5 |
40 |
60 |
75 |
110 |
170 |
220 |
325 |
| Antenna gain, dBi |
15 |
20 |
20 |
20 |
20 |
23 |
23 |
23 |
23 |
23 |
25 |
25 |
25 |
25 |
25 |
| Flange / connector |
SMA |
SMA |
SMA |
SMA |
SMA |
SMA |
SMA |
3.5mm |
2.92mm |
1.85mm |
WR15 |
WR10 |
WR6 |
WR5 |
WR3 |
For each frequency band two standard gain horn antennas and one waveguide probe/conical horn are available.