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Faraday Cages - EMFaraCage^®

Affordable, portable, flexible tabletop faraday cages
Enclosure systems for RFI / EMI isolation

FC-10S EMFaracage® faraday cages with fiber optic I/O.

The EMFaraCage® faraday cages / electromagnetic test enclosures bring convenience to device testing. It is ideal for isolating critical systems in high field RF environments, or wherever RF ingress or egress must be minimized. Security, production testing, biomedical research, and semiconductor testing are only a few of the many areas where EMFaraCage® faraday cages are employed.

EMFaraCage® faraday cage enclosure systems are fully featured to support a wide variety of test missions. The standard faraday cages include effective power, dataline, and RF signal isolation in a large test volume. The EMFaraCage® faraday cages are much more affordable than shielded room solutions, and with the convenience of portability.

 

Standard Faraday Cage Features:

100 kHz to 6 GHz - Up to 70 dB plane wave isolation (typical 50 db @ 1 gHz)
RF Filtered DC power connector (12-24V)
Bulkhead connectors - 2 each type "N", SMA, BNC
Waveguide pass-through entry - 3/4" ID
Fiber optics I/O with external coupler (ethernet)
Shielded front panel viewing port (3" x 4")
Internal LED battery light
RF isolated AC power (120/240V 60Hz 30 Amp)
Welded Aluminum construction
Interior of high conductivity, bare aluminum
Gasketed, easy-access door panel
Handles for portability and front panel handling
Convective ventilation using waveguide vents
Single point ground stud

 

Optional Faraday Cage Features:

Custom sizes and configurations
Specified RF bulkhead connectors
USB or serial fiber I/O
Additional waveguide/vent ports
Ventilation fans
Ferrite tile or other RF absorbers
Low frequency magnetic shielding
Internal DC battry power with external charger
Flexible manipulation ports
High density polypropylene floor

 

Standard EMFaraCage^®  Faraday Cage Models 

MODEL	FC-10S	FC-20S	FC-25S	FC-40S	FC-50S
ENCLOSURE SIZE H x W x D (inches)	24x30x24	34x42x24	36x41x30	40x48x36	44x54x36
ENCLOSURE CUBIC FEET	10	20	26	40	49.5
WEIGHT (lbs)	55	90	105	135	155

 

Customized EMFaraCages^® Faraday Cages


LBA Technology custom designs and fabricates EMFaraCages® faraday cages for a wide variety of applications. We will quote you the faraday cage that exactly suits your application. The photos below show just a sampling of the specialized configurations we have produced. If more than an EMFaraCage® faraday cage is needed, LBA has a long experience in providing shielded rooms and building, and will work with you to produce the architectural shielding result you require!

Walk-in floor mounted faraday cage test chamber.

Notes on EMFaraCage® Faraday Cages Performance: EMFaraCage® faraday cages provide excellent radio frequency shielding in the range of 100 kHz to 6 GHz. The electrical field shielding is very high down to typical AC power line frequencies of 50 – 60 Hz, but the standard aluminum EMFaraCage® faraday cage looses its magnetic shielding effectiveness at these lower frequencies. For applications requiring good magnetic shielding, options include steel construction of the faraday cage, or providing an inner lining of material such as mu-metal. High frequency performance is largely determined by penetrations, power, and I/O provisions. The standard shielded system is designed with waveguide below cutoff ventilation ports and fiber optic entry ports sized for maximum effectiveness below 6 GHz. LBA strongly recommends using fiber for all USB, Ethernet, or other communication I/O’s. At low RF frequencies, the system is much more tolerant of cabled connections, which will, nevertheless, deteriorate electromagnetic shielding effectiveness. Where RF I/O is required, systems can be furnished with specialized gland plates mounting most bulkhead connector types such as “N”, BNC and SMA. RF connectivity must be tightly controlled to ensure no ingress or egress of the very radio frequency signals the EMFaraCage® faraday cage is being employed to block! Access panels can be equipped with viewing windows. The impact of the windows on shielding effectiveness (SE) is a function of window type, size, and frequency. A typical 15 cm x 15 cm window will have little impact at 100 MHz, but deteriorate SE by 20 dB or more at 6 GHz. Device under test (DUT) powering is also an important consideration. A frequently employed option is the AC power filter. These filters have little impact on the SE through 6 GHz. The ideal situation would be to use only internal batteries to power the DUT and ancillaries. DC power can also be supplied through appropriate filters. In systems with viewing panels, the lighting option of choice is an LED wall mounted battery light.

Shielded camera & processing unit for faraday cage

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