CONVEX - ETS-Lindgren
CONVEX
Product Image
Key Features
  • Non-Hygroscopic Substrate
  • 1 GHz to 110 GHz Frequency Range
  • RF Reflectivity Performance up to 60 from Normal Incidence
  • 0.5 W/in2 Power Handling Capability
  • 90 C (190 F) Maximum Service Temperature
  • Uniquely Shaped Tips Minimize Breakage
  • Fire Retardant
    • NRL 8093 Tests 1, 2 & 3
    • TI #2693066
    • MIT MS-8-21
    • UL 94
    • DIN 4102-B2

ETS-Lindgrens Convex is designed to provide reflectivity performance of 35dB or greater and minizes low forward scattering characteristics at incident angles up to 60 or greater from normal incidence at microwave and millimeter-wave frequency ranges.

The absorber's specially designed geometery creates a gradual transition from free-space to loaded substrate, for absorption of electromagnetic energy. The unique geometry gives this absorber good RF absorption performance at wide angles of incidence, while maintaining robust longevity.

Convex absorber is ideal for applications in treating antenna mechanical support structures, and/or metallic positioner devices as wrap-around absorber while testing antennas. It is also ideally suited for small millimeter-wave anechoic chambers.

Product Features

Non-Hygroscopic Substrate

ETS-Lindgren absorbers use a new fire-retardant chemical formula that is non-hygroscopic. As a result, the absorber is not affected by moisture and will maintain its mechanical and RF performance over the life of the product. Broadband Performance Convex Series absorber is designed to provide good RF attenuation of incident electro- magnetic wave from L-Band to W-Band frequency ranges.


Power Handling Capability

Convex Series absorber can safely perform in environments that generate field strengths up to 200 V/m with operating temperatures up to 90 C (190 F).


Tested Performance

Convex Series absorber is tested for reflectivity performance using the Naval Research Lab (NRL) broadband swept frequency arch method.


Fire Retardancy

Convex Series absorber meets applicable US government and commercial flammability specifications as verified by an independent testing laboratory.

Specifications
Physical Specifications


Model
Overall Height
Base Height
Pyramid Height
Pyramid Base Dimension
CX-3CL
7.6 cm (2.99 in)
2.5 cm (0.98 in)
5.1 cm (2.01 in)
61 cm x 61 cm (24 in x 24 in)
CX-5CL
12.7 cm (5.00 in)
2.5 cm (0.98 in)
10.2 cm (4.02 in)
61 cm x 61 cm (24 in x 24 in)


Electrical Specifications

Frequency Range by Model

Model
Guaranteed Absorption at Normal Incidence
CX-3CL
27dB @ 4 to 8 GHz; 35dB @ ≥ 8 Ghz
CX-5CL
25dB @ 2 to 4 GHz; 32dB @ 4 to 8 GHz; 35dB @ ≥ 8 Ghz


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