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 Near-field Systems
Far-field Systems
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Chambers
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Chambers
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In addition to antenna measurement systems, NSI also offers chamber design and construction services. A chamber is an integral component of a complete system as it bounds the environment in which measurements will be performed. Parameters to be controlled are temperature, humidity, RF reflection, RF shielding and mechanical stability. The desire to control these parameters require a formal facility design and integration review since the chamber forms the interface between an existing facility and the antenna test equipment. NSI provides this design review when supplying chambers.
The chamber design activity can encompass aspects like structural design, power supply, heating, ventilation, air conditioning, control line filtering, lighting and radiation safety. NSI can provide the design or specification of these items. In addition to these activities, NSI also provides verification testing as an option.
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FEATURES
All chambers are supplied with 12" pyramidal absorber on all surfaces. Depending upon the frequencies of operation, 8”, 18”, 24” and 36” can be supplied. Nominal attenuation of the shield amounts 100 dB to electric fields & plane waves from 14KHz to 10GHz. If your system does not necessarily require 100 dB shielding, a more cost effective chamber can be quoted.
Key features of our chambers are:
- (2) RF air vents
- (1) 12"x12" (0.3 m x 0.3 m) Penetration Panel
- (1) Brass ground stud
- (2) 2x30 amp AC Line Filters
- (2) Standard AC electrical outlets
- (1) 3' x 7' (0.9 m x 2.1 m)standard shielded door
- Standard Lighting (4 lights)
- Complete surface lining with specified absorber
- Allowance for 6 pieces of walkway absorber
Optional considerations
- FM-200 fire protection System
- Stand alone HVAC system
- Control room
- Welded construction instead of modular for increased shielding
- Larger door sizes
- Custom absorber configuration
- Reduced shielding to reduce chamber costs |
CHAMBERS
OF THE FOLLOWING CONFIGURATION ARE AVAILABLE:
- Rectangular Enclosures
- Tapered Enclosures
- Partial Enclosures
- Welded Enclosures
- Modular Enclosures
- Custom Sizes
In
the table below, the dimensions and the intended use is
indicated for our typical size chambers
| Typical
Anechoic Chamber Models
(click link for images and additional information) |
| Chamber
model |
NSI-CH-12C |
NSI-CH-16C |
NSI-CH-18R |
NSI-CH-20C |
NSI-CH-20R |
NSI-CH-26R |
NSI-CH-30R |
| Outside
Dimensions |
Length |
12'
(3.66 m) |
16'
(4.88 m) |
18'
(5.49 m) |
20'
(6.10 m) |
20'
(6.10 m) |
26'
(7.92 m) |
30'
(9.14 m) |
Width |
12'
(3.66 m) |
16'
(4.88 m) |
10'
(3.05 m) |
20'
(6.10 m) |
12'
(3.66 m) |
20'
(6.10 m) |
24'
(7.32 m) |
Height |
12'
(3.66 m) |
16'
(4.88 m) |
10'
(3.05 m) |
20'
(6.10 m) |
10'
(3.05 m) |
16'
(4.88 m) |
20'
(6.10 m) |
| Inside
Dimensions with 12" absorber
|
Length |
10'
(3.05 m) |
14'
(4.27 m) |
16'
(4.88 m) |
18'
(5.49 m) |
18'
(5.49 m) |
24'
(7.32m) |
28'
(8.53 m) |
Width |
10'
(3.05 m) |
14'
(4.27 m) |
8'
(2.44 m) |
18'
(5.49 m) |
10'
(3.05 m) |
18'
(5.49 m) |
22'
(6.71 m) |
Height |
10'
(3.05 m) |
14'
(4.27 m) |
8'
(2.44 m) |
18'
(5.49 m) |
8'
(2.44 m) |
14'
(4.27 m) |
18'
(5.49 m) |
| Intended
for scanner model# |
NSI-200V-5x5 |
NSI-300V-8x8
NSI-700S-90 |
NSI-700S-30 |
NSI-300V-12x12 |
|
NSI-700S-50,
-60, -70 (using 12" absorber) |
NSI-700S-50,
-60, -70 (using 18" absorber) |
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Please contact the NSI Sales department for additional information
on Anechoic Chambers
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