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Portable RF Shielded Anechoic Tents
     

DBA-Sheild

Select Fabricators Logo 

Manufactured and Serviced in Canandaigua, NY  USA

External Frame RF Shielded Anechoic Tent Chambers

 

EMI Shielded Mini Anechoic Tent

 

600MHz to 18GHz

 

12dB to 40dB Flat Foam Absorber

 

Easy Assembly Aluminum External Frame

 

Portable Wireless Anechoic Tent

 

 


Click to Enlarge

 

Single Layer Bench Top Anechoic Tent

 

Shielding Effectiveness ≥ 60 dB Attenuation 14 MHz to 18 GHz

 

Double Layer Bench Top Anechoic Tent

 

Shielding Effectiveness ≥ 70 dB Attenuation 1 MHz to 18 GHz

 

 

 


RF EMI Shielded Anechoic Tent Enclosures Offer Advantages Over Hard Wall Chambers
Select-A-Shield™ high performing RF EMI shielded anechoic enclosures are available at a fraction of the cost of fully-welded metal enclosures and provide an Anechoic Chamber solution that is truly portable with an on-the-fly setup. Prototype and pre-compliance testing of electronic and wireless devices, temporary EMI shielding, and secure communications all need on-site, economical shielding.  

Series 500: Round heavy-duty aluminum frame

Series 600: Square, heavy-duty aluminum frame. No drilling required. Reduced assembly-time with positive button hole locking connection

 

Part Number Enclosure Dimensions (L x W x H) Construction
500242424SW 24″ x 24″ x 24″ (61 x 61 x 61cm) Single layer
500363636SW 36″ x 36″ x 36″ (91 x 91 x 91cm) Single layer
500484848SW 48″ x 48″ x 48″ (122 x 122 x 122cm) Single layer
500242424DW 24″ x 24″ x 24″ (61 x 61 x 61cm) Double layer
500363636DW 36″ x 36″ x 36″ (91 x 91 x 91cm) Double layer
500484848DW 48″ x 48″ x 48″ (122 x 122 x 122cm) Double layer
600242424DW 24″ x 24″ x 24″ (61 x 61 x 61cm) Double layer
600363636DW 36″ x 36″ x 36″ (91 x 91 x 91cm) Double layer
600484848DW 48″ x 48″ x 48″ (122 x 122 x 122cm) Double layer
600484878SW 48″ x 48″ x 78″ (122 x 122 x 198cm) Single layer
600484878DW 48″ x 48″ x 78″ (122 x 122 x 198cm) Double layer
     
Custom Additional sizes are available. 

Single Wall (SW) or Double Wall (DW)

 

Common Absorber Examples

Model

Thickness

Weight

Performance

Frequency

 

mm

in

kg

lb

Reflectivity

Range of use

LF-72

6.4

0.25”

0.25

0.55

-20 dB

above 18 GHz

LF-73

9.5

0.38”

0.40

0.90

-20 dB

above 7.5 GHz

LF-74

19.1

0.75”

0.70

1.55

-20 dB

above 3.5 GHz

LF-75

28.6

1.13”

0.80

1.75

-20 dB

above 2.5 GHz

LF-77

57.2

2.25”

1.50

3.30

-20 dB

above 1.3 GHz

LF-79

114.3

4.50”

2.95

6.50

-20 dB

above 0.6 GHz

MT-30 25.4 1.0" 1.21 2.67 -40 dB

above 0.6 GHz

SFC-4 109 4.3" 3.0 1.4 -26 dB above 2.5 GHz


External Frame Anechoic Tent Pictures (Click to Enlarge)

Microwave Test Tent      Anechoic Tent      Wireless Test Chamber

Portable Anechoic Chamber      Soft Sided Anechoic Tent      Fabric Anechoic Chamber

EMI Shielded Anechoic Tent Standard Features:

  • Single or Double layer of highly conductive Nickel/Copper/Silver fabric

  • Floor of conductive fabric sandwiched between two layers of durable reinforced coated vinyl

  • Flat Foam Microwave absorber

  • Fully Anechoic or Semi Anechoic

  • One door (opening size varies)

  • Frame: Easy Assemble Series 600

  • Assembly Instructions

  • Quality in-house sewing production

EMI Shielded Tent Options:

  • Fiber-optic interior perimeter lighting system

  • RF/Shielded filter plate

  • Cable Sleeve

  • Double wall construction with or without insulators

  • Multiple door entry systems

  • Intake and exhaust EMI shielding honeycomb panels for ventilation

  • Clean room compatible (tent & absorber)

  • Durable storage and transport bags

  • MIMO, Wireless & Microwave Testing

 

Internal Frame Soft Sided Anechoic Tent Chambers

EMI Shielded Anechoic Tent

 

80MHz to 40GHz (absorber up to 77GHz)

 

12dB to 50dB Pyramidal Absorber

 

Easy Assembly HD Aluminum Internal Frame

Series 500: Round heavy-duty aluminum frame

Soft Sided Anechoic Chamber 

EMI Shielded Anechoic Tent Standard Features:

  • Single or Double layer of highly conductive Nickel/Copper/Silver fabric

  • Floor of conductive fabric sandwiched between two layers of durable reinforced coated vinyl

  • Velcro Attached Pyramidal Foam Microwave absorber

  • Fully Anechoic or Semi Anechoic

  • One door (opening size varies)

  • Frame: Easy Assemble Series 500

  • Assembly Instructions

  • Quality in-house sewing production

EMI Shielded Anechoic Tent Options:

  • Fiber-optic interior perimeter lighting system

  • RF/Shielded filter plate

  • Pyramidal or Flat Microwave Absorber

  • Double wall construction with or without insulators

  • Multiple door entry systems

  • Intake and exhaust EMI shielding honeycomb panels for ventilation

  • Clean room compatible (Tent & Absorber)

  • Walkway Absorber Available

  • Wireless, RF, Microwave & MIL-STD-461 Prescan Testing


Tent Shielding Effectiveness

Modular EM RF Shielded Enclosure from Select Fabricators, Inc.

 

Common Absorber Examples

 

Model

Absorber Height
in. (mm)

Walkway

Overall Height

in.

Absorption (dB) at Freq. (GHz)

.08

.12

.3

.5

1

3

6

10

18

*36

*50

SFC-3 3.0 (76) NA           26

32

39

45

50

50

SFC-4

4.3 (109)

7.3

 

 

 

 

 

30

35

42

50

50

50

SFC-6

6.0 (152)

9.0

 

 

 

 

 

32

40

45

50

50

50

SFC-8

8.0 (203)

11.0

 

 

 

 

30

37

45

50

50

50

50

SFC-12

12.0 (305)

15.0

  3

13

 27

35

40

45

50

50

50

50

SFC-18

18.0 (457)

21.0

  6

26

30

37

40

45

50

50

50

50

SFC-24

24.0 (610)

27.0

 7

9

30

35

40

45

50

50

50

50

50

 

 

 

RF Shielded Fabric

NOVA SELECT     Ag/Cu/Ni, URE-coated RipStop Nylon     Made in USA

 

Purpose:

Conductive gasket skin, tent and cable shielding

 

Description:

Ag/Cu/Ni, URE-coated ripstop nylon fabric

 

Surface Resistivity:  

 0.005 ohms/□ Max – average 0.004 ohms/□

 

Shielding Effectiveness:

Average 85 dB from 30 MHz to 1 GHz

 

Abrasion Resistance:

1,000,000 cycles

 

Temperature Range:

-30º C to 90º C

 

Total Thickness:  

0.130 mm (.0048”) nominal

 

Shielded Tent Attenuation Levels - Average (Single Layer & Double Layer)

 

Shielding Effectiveness (dB)

Attenuation Ratio

Percentage of Signal Attenuation

20

 

                 10 : 1

 

                90.0

40

 

                 100 : 1

 

                99.0

60

 

                 1,000 : 1

 

                99.9

80

 

                 10,000 : 1

 

                99.99

100

 

                 100,000 : 1

 

                99.999

120

 

                 1,000,000 : 1

 

                99.9999

 

 

 

Last Updated: January 1, 2018
Copyright © 2001- 2018  R. A. Mayes Company, Inc.
An Electro Mechanical Research and Development (EMRAD) Corporation, Company
 

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