Lightweight Flat-Sheet Broadband Microwave Absorbers
ECCOSORB
®
HR
•
Material Characteristics
•
•
•
•
•
•
Lightweight, flexible, flat-sheet broadband absorber
Reticulated (open-cell) polyurethane foam sheet with a
controlled conductivity gradient carbon loading system
Electrically conductive
Frequency range from 5 - 70 GHz
Back surface is marked: HR-xx BACK
Not weatherproof
Instructions for Use
•
•
Applications
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Antenna shrouds for low side-lobe reflector antennas
Isolation of adjacent antennas and array elements
Various camouflaging and interference suppression
applications
Military radar absorbing blankets providing stealth
ECCOSORB
®
HR has been used for moderate
performance anechoic chambers and less sensitive
regions of high performance chambers
The front surface should face the incident
electromagnetic energy for proper performance. To
decipher from front and back, the back side of each
panel is marked (HR-xx BACK)
ECCOSORB
®
HR should be bonded to a metal surface
for optimal performance. If a metal surface is not
available, it can be supplied with an aluminum foil
backing (ML) designated as HR-XX/ML
ECCOSORB
®
HR can be bonded with the preferred
adhesive ECCOSTOCK
®
13-111-NF
Typical Properties
HR-10
Frequency Range (GHz)
Max. Service Temperature, °F (°C)
Density lb/ft
3
(kg/m
3
)
12-70
194 (90)
2.8 (45)
0.38
70
170
HR-25
5-27
194 (90)
2.8 (45)
0.93
70
170
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•
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Availability
Weight per 24” x 24” sheet, lbs.
Tensile Strength (kPa)
Elongation (%)
Standard sheets are 24” x 24” (61 cm x 61 cm)
Two standard thicknesses: ECCOSORB
®
HR-10
(10 mm) and ECCOSORB
®
HR-25 (25mm)
ECCOSORB
®
HR is available in other sizes and
customer specified configurations upon request
Typical Reflectivity
0
Reflectivity (dB)
-10
-20
-30
-40
0
10
20
30
40
50
60
70
Frequency (GHz)
HR-10
HR-25
EMERSON & CUMING MICROWAVE PRODUCTS, INC., 28 York Avenue, Randolph, MA 02368 / Telephone (781) 961-9600. Use of Information and Material: Values shown are based on testing of laboratory test specimens and represent data that
falls within normal range of the material. These values are not intended for use in establishing maximum, minimum or ranges of values for specification purposes. Any determination of the suitability of the material for any purpose
contemplated by the user and the manner of such use is the responsibility of the user. The user should determine that the material meets the needs of the user's product and use. We hope that the information given here will be helpful. It is
based on data and knowledge considered to be true and accurate and is offered for the user's consideration, investigation and verification but we do not warrant the results to be obtained. Please read all statements, recommendations or
suggestions in conjunction with our conditions of sale INCLUDING THOSE LIMITING WARRANTIES AND REMEDIES, which apply to all goods supplied by us. We assume no responsibility for the use of these statements, recommendations or
suggestions nor do we intend them as a recommendation for any use, which would infringe any patent or copyright. Emerson & Cuming Microwave Products Inc.
Revision: 5/11/07
www.eccosorb.com
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