The document discusses different types of RF absorbers and their features. It describes pyramidal, wedge, convoluted and multilayer broadband absorbers that effectively absorb RF radiation using fireproof urethane foam loaded with carbon. It also mentions RF shielded chambers, anechoic boxes and other equipment that provide electromagnetic shielding and help attenuate radio waves.

3.  RF ABSORBERS
 RF ANECHOIC CHAMBER
 RF ANECHOIC BOX
 MAGNET FREE RF SHIELD CHAMBER
 SHIELDED CHAMBER
 SEMI ANECHOIC CHAMBER
 RF SHIELD BOX
 RF PROTECTION DRESS

5.  RAM is designed and shaped to absorb incident RF
Radiation.
 Comprised of fireproofed urethane foam loaded with
carbon.
 Available with wide range of thicknesses and
absorbencies.
 Meets the fire retardant requirements of NRL
specification 8093 tests 1, 2 and 3.

6. FEATURES OF RF ABSORBERS
 Quite Zone better then - 52 dB.
 Cost Effective.
 Temperature resistant.
 0.5 Watt/in2 or 775 Watt/m2 Power Handling.
 Long performance warranty
 Tested as per IEEE standards
 Fire retardant as per NRL 8093
 Long product life up to 25 years.
 ROHS compliance for safety.

7. TYPES OF RF MICROWAVE
ABSORBERS
 Pyramidal Absorbers.
 Wedge Absorbers.
 Convoluted Absorbers.
 Multilayer Broadband Absorbers.
 Flat Sheet Absorbers.
 Weather Proof Absorbers.
 Ecosorb Absorber Sheets.
 Walk on Absorbers.

8. Geometrical matching and carbon dispersed gives the attenuation required.
Square base of uniform thickness, tapered to a point.
Offering excellent absorption over a broad frequency range.
Fire retardant finish as per NRL 8093 Sl.No.1,2 and 3
Up to -50 dB attenuation from frequency band 80 MHz to 40 GHz.
Available in standard base size of 2' x 2' (60 cm x 60 cm) and height from 4 inch.
to 36 inches.

9. Direct energy in given path.
Efficiently absorbed by high performance materials
Maximum performance at grazing incidence angles.
Fire retardant finish as per NRL 8093 Sl.No.1, 2 and 3.
Direct energy in a given path.
These are polarization sensitive.
Base size of 2' x 2' (60 cm x 60 cm) and height from 4 inch. to 24 inches.

10. Meet the requirements where high reflectivity performance with low forward
scattering characteristics demanded.
Front surface is rippled, providing a good match to the impinging wave front.
Fire retardant finish as per NRL 8093 Sl.No.1,2 and 3.
Excellent reflectivity property.
Attenuation is high -25 dB to -45 dB from frequency band 2 GHz to 18 GHz as
compared to rest type of absorbers.
Base size of 2' x 2' (60 cm x 60 cm) and height of 4 inches.

11. MULTILAYER BROADBAND
ABSORBERS
Used in interference suppression applications
Reduces coupling effect between antennas.
Front surface (as marked) of multilayer type should face the incident electromagnetic
energy for proper performance.
Fire retardant finish as per NRL 8093 Sl.No.1, 2 and 3.
Electrically conductive.
Attenuation of -20 dB from frequency band 100 MHz to 18 GHz.
Available in customized configurations.
Base size of 2' x 2' (60 cm x 60 cm) and Thickness from 2 cm to 10 cm.

12. FLAT SHEET ABSORBERS
Flexible, light weight used in interference suppression applications.
 It reduces coupling effect between antennas.
Fire retardant finish as per NRL 8093 Sl.No.1, 2 and 3.
Electrically conductive.
Attenuation of -20 dB from frequency band 100 MHz to 18 GHz.
Available in customized configurations.
Base size of 2' x 2' (60 cm x 60 cm) and Thickness from 1 cm to 5 cm.

13. WEATHER PROOF ABSORBERS
Flat Coir sheet absorbers are light weight used in open environment interference
suppression applications.
 It reduces coupling effect between antennas.
Fire retardant finish as per NRL 8093 Sl.No.1, 2 and 3.
Electrically conductive.
Attenuation of -20 dB from frequency band 100 MHz to 18 GHz.
Available in customized configurations.
Base size of 2' x 2' (60 cm x 60 cm) and Thickness from 3 cm to 10 cm.

14. WALK ON ABSORBERS
Low- density rigid polystyrene foam is used to encapsulate a standard pyramidal
absorber.
Necessary for personnel to walk inside chamber.
Smooth walking surface Impervious to water & Dirt.
Effectively bear weight of single personnel.
Available in customized configurations.
Base size of 2' x 2' (60 cm x 60 cm) and height from 6 inch. To 24 inches.

15. ECOSORB ABSORBER SHEET
Thin broadband absorber with a dielectric material.
Accepted in microwave and antenna fields.
Fabricated using layers of carbon impregnated natural rubber.
Will withstand temperatures from -40 to 120 degree C.
Impervious to moisture and can be subjected to outdoor environments.
Can be easily cut with a knife or die.
Effective at high power levels.

16.  Frequency Range: - 100 MHz to 18 GHz
 Average reflectivity: -20 dB
 Withstand temperatures: -40 to 120 degree C.
 Power Handling: - 0.15 W/cm
 Base Dimensions: - 12” x 18”
 Weight: - 2.145 Kg (approx.)
 Density: - 80-85 g/cm
 Color: - Black

17. Applied to surfaces to improve radar performance, reduce backscattering.
Effective in reducing specular reflections as well as surface currents due to high
magnetic loss properties.
used to modify antenna patterns, cover antenna feed supports, line antenna caps to
reduce reflections.

18.  Shielding effectiveness up to & Better than -100 dB.
 Pan Modular Self Supporting Structure.
 Metallic gasket sandwiched between the two panels.
 Shields a test setup from RF noise from external
environment.
Shielding effectiveness up to & better than -100 dB.
Customized size as per our client's suggestions.
Availability of portable shielded Chambers.
Self Manufacturing of Shielded doors & Accessories.

20.  Absorbs reflected signals generated inside the chamber.
 Fully lined with RF absorber material.
 Metallic gasket sandwiched between the two panels.
0.5 Watt/in2 or 775 Watt/m2 Power Handling.
Tested as per IEEE Standards
Fire Retardant as per NRL 8093
Temperature resistant
Long performance warranty
ROHS Compliance for safety.

22.  Shielded cabinet designed to attenuate waves.
 Excellent shielded environment for Radio frequency
(RF) and microwaves.
RF ANECHOIC BOX
"ANECHOIC BOXES ARE CHEAPEST SOLUTION FOR ENGINEERING
INSTITUTIONS"
• Easy to use & Install.
• Low Cost solution to carry out Measurements.
• Durable & highly efficient.
• High Shielding & Reflectivity.

23. RF SHIELD BOX
 For handheld wireless devices such as pagers &
cellular phones.
 Cabinet designed to attenuate waves.

24. RF Isolation: 80 to 100 dB up to 12 GHz.
RF tight gasket between Enclosure Body & Door.
Tested as per IEEE Standards
Fire Retardant as per NRL 8093.
Easy top loading access door.
RF absorbent foam liner.
 Connector panel & Air Vents along with Fan.

25. MAGNET FREE RF SHIELDED
CHAMBER
 Shielding effectiveness up to & Better than -90 dB
from 10 KHz to 40 GHz.
 Pan Modular Self Supporting Structure.
 Non magnetized environment in regards with high
magnetization of 30 tesla’s.

26. RADIATION PROTECTION
FABRIC
SHIELDING AGAINST ELECTROMAGNETIC RADIATION
 Use of international quality standards & cutting
edge technology.
 Protective cloth when working in high
electromagnetic radiations environment.
High EMI shielding effectiveness- 99% in the
frequency range of 800 MHz to 18 GHz.
Highly strong & easily washed.

27. Aprons to shield body against harmful radiation.
Shielded Tents & curtains to shield particular region
from radiations.

28. RF / MICROWAVE
COMPONENTS
(LAB MEASUREMENTS, BROADCASTING, FREQUENCY MEASUREMENT)
High Microwave Test Bench.
Antennas.
Waveguide Components & Adapters.
RF Cables.
 Any customized or similar product.

30. THANKING
YOU
Gaurav Jindal
Application Engineer-RF
Mobile : +91-9582795557, 9992134422
Email: gaurav8023@gmail.com