WITHWAVE-CO-LTD-LS30-50-S3
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TM
W-Absorber
Flexible Microwave Absorber Sheet
Versatile RF & MW Test Solutions
Withwave’s
e of a mixture of
polymer res
lent in workability
and can be
tronic devices for
wideband m
rface reflection in
cavity reson
■
Featu
– Available
for Microwave Freq. range
– Lightweight,
flexible, thin and excellent processability
– Wide
absorption bandwidth
– Included
Adhesive tape on backside
■
Markets
– Commercial
communications
– Security
and Defense
–
Antenna Chamber
Adhesive tape on backside
– Automotive,
general electronics
211201_Ver3.0
TM
W-Absorber
Flexible Microwave Absorber Sheet
Versatile RF & MW Test Solutions
■
Applications
– W-Absorber
can suppress radiation noise of electronic devices for wideband radio frequency
range and is effective in reducing surface current as well as surface reflection in cavity resonant
applications due to the high magnetic loss characteristics of materials.
– It
suppresses the reflection inside the microwave module and is used to reduce cavity
resonance of the module.
– It
is particularly suitable for use in masts of ships and walls to reduce reflections and echoes to
nearby antennas and to reduce overall radar signatures by attaching to vehicles.
– It
can be used for various applications such as anechoic chamber, medical equipment facility.
■
Availability
– Standard
sheet size
: S1
(105 X 150 mm) , S2 (150 x 210 mm), S3 (210 x 300 mm : A4 Size)
– W-Absorber
can be used in different sizes, thicknesses and custom configurations on request.
– Thickness
depends on the desired resonant frequency, and other resonant frequencies are available
according to special request.
■
Instructions for USE
– W-Absorber
is designed to function directly in front of a metallic surface. Otherwise, a metallic
foil should be bonded to the object.
– Epoxy
and acrylic adhesives are recommended or use the self-adhesive version.
– To
obtain a strong bond of the absorber to the object, the metallic surface should first be
thoroughly cleaned with a degreasing solvent.
– W-Absorber can be readily cut with a sharp knife and template.
211201_Ver3.0
TM
W-Absorber
Flexible Microwave Absorber Sheet
Versatile RF & MW Test Solutions
■
Specification
Items
LS20-80
LS20-100
LS30-30
LS30-50
Freq. range (GHz)
< 6.0
Peak &Center
Freq. (GHz)
2.0
0.8
2.0
1.0
3.0
0.3
3.0
0.5
Standard
thickness (mm)
S1 : 105 X 150
S2 : 150 X 210
S3 : 210 x 300 (A4 size)
Standard
size (mm)
Surface
resistance (Ω)
1×10
6
(min)
3.4 ± 0.5
Specific gravity
Temp. Range (°C )
-30 to
90
93 ± 5
Hardness
(Shore A)
*ROHS Compliant
■
Test Data
211201_Ver3.0
TM
W-Absorber
Flexible Microwave Absorber Sheet
Versatile RF & MW Test Solutions
■
Specification
MT20-200
MT25-210
MT30-210
MT35-120
MT70-100
MT80-70
MT100-80
MT120-50
Items
Freq. range (GHz)
< 18.0
Peak &Center
Freq. (GHz)
2
2.5
2.1
3
2
7
8
10
12
Standard
thickness (mm)
2.0
2.1
1.2
1.0
0.7
0.8
0.5
S1 : 105 X 150
S2 : 150 X 210
S3 : 210 x 300 (A4 size)
Standard
size (mm)
Surface
resistance (Ω)
1×10
6
(min)
3.4 ± 0.5
Specific gravity
Temp. Range (°C )
-30 to
90
93 ± 5
Hardness
(Shore A)
■
Test Data
*ROHS Compliant
211201_Ver3.0
TM
W-Absorber
Flexible Microwave Absorber Sheet
Versatile RF & MW Test Solutions
■
Specification
Items
MS35-230
MS50-150
MS60-120
< 18.0
MS80-100
Freq. range (GHz)
Peak &Center
Freq. (GHz)
3.5
2.3
5.0
1.5
6.0
1.2
8.0
1.0
Standard
thickness (mm)
S1 : 105 X 150
S2 : 150 X 210
S3 : 210 x 300 (A4 size)
Standard
size (mm)
Surface
resistance (Ω)
1×10
6
(min)
Specific gravity
3.7 ± 0.7
Temp. Range (°C )
-30 to
90
93 ± 5
Hardness
(Shore A)
*ROHS Compliant
■
Test Data
211201_Ver3.0
TM
W-Absorber
Flexible Microwave Absorber Sheet
Versatile RF & MW Test Solutions
■
Specification
Items
MD30-250
MD40-270
MD140-250
MD200-100
Freq. range (GHz)
< 24.0
Peak &Center
Freq. (GHz)
3.0
2.5
4.4
2.7
14.0
2.5
20.0
1.0
Standard
thickness (mm)
S1 : 105 X 150
S2 : 150 X 210
S3 : 210 x 300 (A4 size)
Standard
size (mm)
Surface
resistance (Ω)
1×10
6
(min)
3.4 ± 0.5
Specific gravity
Temp. Range (°C )
-30 to
90
93 ± 5
Hardness
(Shore A)
*ROHS Compliant
■
Test Data
211201_Ver3.0
TM
W-Absorber
Flexible Microwave Absorber Sheet
Versatile RF & MW Test Solutions
■
Specification
Items
HT160-75
HT200-65
HT270-50
HT290-35
HT360-75
HT380-35
Freq. range (GHz)
<24
<28
<35
<40
Peak &Center
Freq. (GHz)
16
20
27
29
36
38
Standard
thickness (mm)
0.75
0.65
0.5
0.35
0.75
0.35
S1 : 105 X 150
S2 : 150 X 210
S3 : 210 x 300 (A4 size)
Standard
size (mm)
Surface
resistance (Ω)
1×10
6
(min)
3.4 ± 0.5
Specific gravity
Temp. Range (°C )
-30 to
90
93 ± 5
Hardness
(Shore A)
*ROHS Compliant
■
Test Data
211201_Ver3.0
TM
W-Absorber
Flexible Microwave Absorber Sheet
Versatile RF & MW Test Solutions
■
Specification
Scope
Items
HT200-75
Freq. range (GHz)
< 40
0.75
Electrical
Standard
thickness (mm)
Material
S1 : 105 X 150
S2 : 150 X 210
Standard size (mm)
S3 : 210 x 300 (A4 size)
Surface resistance (Ω)
Specific gravity
1×10
6
(min)
4.0 ± 0.5
-30 to
90
90 ± 5
Temp. Range (°C )
Hardness (Shore A)
*ROHS Compliant
HT200-75
Frequency (GHz)
211201_Ver3.0
TM
W-Absorber
Flexible Microwave Absorber Sheet
Versatile RF & MW Test Solutions
■
Specification
Items
HS100-120 HS120-100 HS150-120 HS200-100
HS240-80 HS280-85 HS310-85 HS370-80 HS400-65
Freq. range (GHz)
~20
~26
15
~26
19
1
~32
24
~36
28
~40
31
~40
37
~45
40
Peak &Center Freq. (GHz)
Standard Thickness (mm)
10.2
1.2
12.5
1
1.2
0.8
0.85
0.85
0.8
0.65
Standard
S1 : 105 X 150
S2 : 150 X 210
Size (mm)
S3 : 210 x 300 (A4 size)
1×10
6
(min)
Surface
resistance (
Ω)
Specific gravity
Temp. Range (
°
C )
Hardness(Shore A)
3.4
±
0.5
-30 to
90
93
±
5
*ROHS Compliant
■
Test Data
211201_Ver3.0
TM
W-Absorber
Flexible Microwave Absorber Sheet
Versatile RF & MW Test Solutions
■
Specification
Broadband 2-Layer
Type for Antenna Chamber, Shield Box
Items
LS20-320
< 7.0
Freq. range (GHz)
Peak &Center
Freq. (GHz)
Standard thickness (mm)
Standard size (mm)
Surface resistance (
Ω)
Specific gravity
2.0 & 6.0
3.2
S3 : 210 x 300 (A4 size)
S4 : 250 X 300
1×10
6
(min)
3.7
±
0.7
-30 to
90
93
±
5
Temp. Range (
°
C )
Hardness (Shore A)
*ROHS Compliant
■
Test Data
NRL Arch test
Coaxial transmission line
T
e
st
LS20-320
0
-5
-10
-15
-20
0
1
2
3
4
5
6
7
Frequency ( GHz )
* The NRL Arch is the industry standard for testing the reflectivity of materials. It allows quick, repeatable non-destructive testing of microwave
absorbent materials over a wide frequency range.
211201_Ver3.0
TM
W-Absorber
Flexible Microwave Absorber Sheet
Versatile RF & MW Test Solutions
Broadband 2-Layer
Type for Antenna Chamber, Shield Box
Dual Band Type (
< 7GHz ,
20 ~ 40 GHz )
■
Specification
Items
LS30-300
Freq. range (GHz)
< 7.0
& 20~40
3.0 & 34.0
Peak &Center
Freq. (GHz)
Standard
thickness (mm)
3.0
Standard
size (mm)
S3 : 210 x 300 (A4 size)
S4 : 250 x 300
Surface
resistance (Ω)
1×10
6
(min)
3.4 ± 0.5
Specific gravity
Temp. Range (°C )
-30 to
90
93 ± 5
Hardness
(Shore A)
LS30-300
■
Test Data
0
-2
-4
-6
-8
NRL Arch test
-10
-12
-14
0
1
2
3
4
5
6
7
Frequency ( GHz )
0
-2
-4
-6
-8
-10
-12
-14
-16
-18
-20
24
26
28
30
32
34
36
38
40
Frequency ( GHz )
211201_Ver3.0
TM
W-Absorber
Flexible Microwave Absorber Sheet
Versatile RF & MW Test Solutions
■
Selection Guide
MT70-100- S1
Absorber type
Size
Thickness
S1 : 105 X 150 mm
S2 : 150 X 210 mm
S3 : 210 X 300 mm (A4 Size)
MT70
HT200
75 : 0.75 mm
100 : 1.0
mm
S4 : 150 X 300 mm (For 2-Layer)
S1
S2
S3
S4
211201_Ver3.0
TM
W-Absorber
Flexible Microwave Absorber Sheet
Versatile RF & MW Test Solutions
■
Revision History
Revision
Date
Changes
Ver 1.0
Ver 2.0
Ver 2.1
Ver 2.2
Ver 2.3
Ver 3.0
2019-01-11
2019-07-26
2019-12-10
2020-09-07
2020-10-22
2021-12-01
Releases Flexible Microwave Absorber Sheet
Add products
Revised spec.
Add new models (2-Layer types)
Add Adhesive tape information
Add New types of Absorbers
211201_Ver3.0
