EMI SUPPRESSION SHEETS,
ABSORBERS
& ANECHOIC BOXES
http://www.fdk.co.jp
Products and applicable frequency ranges
PE Series
Onboard
CISPR (noise reg.) VCCI
,
FCC
,
EN
VHF
,
TV ETC
Cellular phones ITS radars
100GHz10GHz1GHz100MHz10MHz1MHzFrequency
10Gbps optical modules
40Gbps optical modules
25GHz microwave com.
14GHz satellite com.
5.8GHz
5.2GHz2.4GHz
UHF
,
TV
Game equipment
Pentium 4 CPU
Digital cameras GPS
Wireless LAN
Bluetooth
Applications
EMI control cables
SA Series
JA Series
HT Series
Anechoic
boxes
Single frequency
Wideband
WB Series
SA00SP
GE Series
JB Series
PA Series
EMI control products/frequency ranges
EMI control 
products
EMI noise
absorbers
EC-ECE001-0208
http://www.fdk.co.jp
EMI suppression sheets (PE Series)
Operation errors of an electronic device are often caused by EMI noise from another electronic device nearby. Also,
existing EMI control products are ineffective to high-frequency digital equipment. Utilizing original material and processing
technologies, FDK has developed new EMI suppression sheets abreast with the advancement of electronics.
Features
Wideband EMI noise absorption
Flexible, easy-to-handle sheets
Customization options
(self-adhesive tapes, cut lines, etc.)
Applications
EMI noise suppression from electronic devices.
Resonance prevention within electronic equipment.
Characteristics
Nearfield decouplingNearfield decoupling performance
Product code
Magnetic material
Initial permeability
Density (kg/m33103)
Operating temp. (°C)
Thickness
PE23
Mn-Zn ferrite
12
3.4
–30 ~ +100
3003200mm
200mm (W)315m
1.0mm
PE45
Mn-Zn ferrite
10
3.1
–30 ~ +80
2973210mm
310mm (W)322m
0.4mm
PE44
Mg-Zn ferrite
8
3.0
–30 ~ +80
2973210mm
310mm (W)322m
0.4mm
Sheet
Roll
PE72
Metallic soft magnetic
20
3
–30 ~ +100
2973210mm
0.25mm, 0.5mm, 1.0mm
Shape
0
2
4
6
8
10 1000
Frequency (MHz)
Attenuation (dB)
100
PE45
PE23
PE72
Network analyzer
Loop antenna
Measurement diagram
Ferrite sheet
EC-ECE002-0208
http://www.fdk.co.jp
Shape (examples)
Sheet with
self-adhesive tape
Cut line groove
Self-adhesive tape
Sheet with cut lines
(with self-adhesive tape)
Roll
Applications (examples)
(1) Affixed on an IC or between IC packages
(2) Over interface cables between LCD and keyboard
(3) Inside the metallic casing or lid
Ferrite sheet
Ferrite sheet Ferrite sheet
Ferrite sheet Lid
Magnetic characteristics
PE Series µ'
PE72
PE23
PE45
µ'
0
5
10
15
20
25
10 100 1000 10000
Frequency (MHz)
PE Series µ''
µ''
0
2
4
6
8
10
10 100 1000 10000
Frequency (MHz)
PE72
PE23
PE45
EC-ECE002-0208
http://www.fdk.co.jp
Heat conductive EMI suppression sheets (GE Series)
Features
Ideal marriage of noise suppression and thermal
conductivity
Flexible fitting to surface irregularities of chips on the
circuit board
Impressive anti-EMI by placement between circuit
board and shield casing
Reliable fitting without self-adhesive tapes by
adhesive property of gelled sheets
Applications
Simultaneous noise/heat treatment by placement
between CPU and heat sink
Optimal anti-EMI sheets for cellular phones, digital
cameras and other compact electronic equipment
Characteristics
EC-ECE003-0208
Product code
Initial permeability (
µ
iac)
Density (kg/m33103)
Heat conductivity (W/m•K)
Operating temp. (°C)
Volume resistivity (•m)
Rubber hardness
Shape (sheet only)
Thickness
GE45C
2.5
2.8
1.2
–30 ~ +150
131010
28
300mm3200mm
0.5 to 3.0mm
GE45D
3
3.0
1.5
–30 ~ +150
131010
28
300mm3200mm
0.5 to 3.0mm
GE45E
5.5
3.75
3.0
–30 ~ +150
13108
40
300mm3200mm
1.0 to 3.0mm
GE45B
6
3.1
1.0
–30 ~ +150
131010
28
300mm3200mm
0.5 to 3.0mm
http://www.fdk.co.jp
Shape (examples)
Sheet
3003200mm Sheet with cut lines
3003200mm
(1) Placement between CPU and heat sink (2) Fitting to surface irregularities of chips on a circuit
board
Applications (examples)
Cut line groove
Protection film
Magnetic characteristics
Heat sink
CPU
Heat conductive 
ferrite sheet
Heat conductive ferrite sheet Lid
Circuit board
GE Series µ'
µ'
µ' (GE45B)
15
10
5
010 100 1000 10000
µ' (GE45C)
µ' (GE45D)
µ' (GE45E)
Frequency (MHz)
Frequency (MHz)
µ''
5
4
3
2
1
010 100 1000 10000
GE Series µ''
µ'' (GE45B)
µ'' (GE45C)
µ'' (GE45D)
µ'' (GE45E)
EC-ECE003-0208
http://www.fdk.co.jp
Super thin ferrite sheets for EMI suppression
Features
Superb EMI suppression performance despite
minimal thickness
Covered with a film for protection from physical
damage
Wide frequency options by adjusting ferrite materials
Customized sheet shapes and dimensions
Applications
EMI noise suppression from electronic equipment
Optimal anti-EMI sheets for cellular phones, digital
cameras and other compact electronic equipment Ferrite sheet
Characteristics Nearfield decoupling performance
Nearfield decoupling measurement diagram
Frequency (MHz)
Attenuation (dB)
Network analyzer
Loop antenna
Ferrite sheet
EC-ECE004-0208
Product code
Initial permeability (
µ
iac)
Density (kg/m33103)
Operating temp. (°C)
Shape (sheet only)
Thickness (
sheet only
)
PF19
200
5.1
-30 ~ +120
10mmu ~ 100mmu
0.2mm ~ 0.6mm
http://www.fdk.co.jp
Structure
(1) Affixed on an IC package (2) Over interface cables between LCD and keyboard
Applications (examples)
Ferrite sheet
Ferrite sheet
Magnetic Characteristics
Ferrite sheet
Self-adhesive 
tape
Protection film
GE Series µ'
µ'
Frequency (MHz)
GE Series µ''
µ'
Frequency (MHz)
EC-ECE004-0208
http://www.fdk.co.jp
EMI suppression sheets SA00SP
The SA Series consists of a lineup of silicone-based EMI absorbers in the microwave and millimeter wave bands.
The SP type is aimed at a wide frequency range in the microwave band.
Features
Outstanding return loss performance in a wide
frequency range
Suitable for absorption of noise from communica-
tions equipment
Flexible, easy-to-handle sheets
Customization options
(self-adhesive tapes, cut lines, etc.)
Applications
EMI noise reduction from communications equip-
ment
Resonance prevention within communications
equipment
Characteristics
Product code
Effective frequency
Operating temp.
Shape (sheet only)
Thickness
Measurement
frequency
µ'
SA00SP
4 ~ 18GHz
4GHz 12GHz 18GHz
1.5 %1.0 %0.5 %
1.0 %1.0 %0.5 %
–30 ~ 15°C
3003150mm
1.0 ~ 3.0mm
Material
constant
µ''
Physical properties
Product code
Material
Rubber hardness
kg/m3
N/mm2
SA00SP
Silicone + Iron carbonyl
3.53103
5 or more
50 or more
3.0 or more
Density
Tensile
strength
N/10mm
Adhesive tape
90° peel
strength
EC-ECE005-0208
http://www.fdk.co.jp
Shape (examples)
Sheet with
self-adhesive tape
Cut line groove
Self-adhesive tape
Sheet with cut lines
(with self-adhesive tape)
Material characteristics
SA00SP
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
0 5000 10000 15000 20000
Frequency (MHz)
µ'
µ''
Complex permeability
Absorption characteristics
Absorption characteristics (sheet 1.5mm thick)
Return loss (dB)
40
30
20
10
0
0 5000 10000 15000 20000
Frequency (MHz)
EC-ECE005-0208
Adhesive tape 90° peel strength
Test method: In accordance with JIS Z1528
“Self-adhesive tape 90° peel method”





90° peel method
100mm/min
Absorber sheet
Tape
Metallic
sheet
Product naming
SA00SP ST300200–1.5T
Silicone EMI absorber Sheet shape
(3003200mm)
Sheet thickness
(1.5mm)
T: With tape
No T: Without tape
Designated frequency
00: No designation
08: 800MHz
6 : 6GHz
12: 12GHz
Microwave band type
* Absorption varies according to sheet thickness.
http://www.fdk.co.jp
Rubber-based radio wave absorbers (SA Series)
The SA Series, a lineup of silicone-based EMI absorbers in the microwave and millimeter wave bands, features a superb
durability against heat and a minimal EMI reflection.
Features
High thermal resistance
Low EMI reflection
Flexible, easy-to-handle sheets
Many shape options with self-adhesive tapes
Applications
10 & 40Gbps opt/electro conversion modules
10 & 40Gbps electro/optical conversion modules
Satellite communications
ETC/DSRC
ITS
Millimeter wave radar
Example: Opt/electro conversion module
SA10
AGC Pre.A PD
FIL.
Pre.A
FIL.
LA
Electric Optical
RG
FR
EC-ECE006-0208
http://www.fdk.co.jp
EMI absorption characteristics
SA4 SA6 SA10 SA40 SA60 SA76
0
10
20
30
40
501 5 10 10050
Frequency (GHz)
Return loss (dB)
Reliability test
Temperature cycle test: -65 to + 125°C, 200 cycles
Hot humid test: 85°C, 85% for 2,000 hours
Material
SA4
SA6
SA10
SA40
SA60
SA76
Applications
Satellite
communications
ETC/DSRC
10Gbps optical module
40Gbps optical module
Road-vehicle
communications
Millimeter wave radar
Center
frequency
4GHz
5.8GHz
10GHz
40GHz
60GHz
76.5GHz
Absorption range
3.7 ~ 4.3GHz
(20dB or more)
5.4 ~ 6.5GHz
(20dB or more)
9.5 ~ 10.5GHz
(20dB or more)
38 ~ 42GHz
(15dB or more)
58 ~ 62GHz
(15dB or more)
75 ~ 78GHz
(15dB or more)
Thickness
2.0mm
2.1mm
1.6mm
0.7mm
0.4mm
1.1mm
Operating
temp.
-30 ~ 150°C
Reflection
ratio
< 0.1%
EC-ECE006-0208
http://www.fdk.co.jp
Rubber-based radio wave absorbers (JA Series)
Produced by mixing iron carbonyl into synthetic rubber, JA Series absorbers suppress EMI noise in the microwave
band (4-18 GHz), and their flexibility brings about handling and working ease. Customization in shape, effective frequency
range, double-stick tapes, etc.
Physical properties
Tensile strength 1.5 ~ 2.0MPa
Tear strength 0.7 ~ 1.0MPa
Rubber hardness 65 ~ 75
Thermal expansion coefficient 1.0 ~ 2.0310-4 / °C
EC-ECE007-0208
http://www.fdk.co.jp
Material code Center frequency 20dB or more absorption Dimensions
JA4 4GHz 3.7 ~ 4.3GHz 100310032.0mm
JA6 5.8GHz 5.4 ~ 6.5GHz 100310032.0mm
JA7 7.5GHz 7.0 ~ 8.2GHz 100310031.65mm
JA9 9GHz 8.3 ~ 9.7GHz 100310031.6mm
JA12 12GHz 11.2 ~ 13.2GHz 100310031.5mm
JA14 14GHz 13.2 ~ 15.3GHz 100310031.4mm
JA18 18GHz 17.1 ~ 19.5GHz 100310031.35mm
EMI absorption characteristics
Magnetic characteristics
0
10
20
30
40
50 0 5 10 15 20 25
Frequency (GHz)
Return loss (dB)
JA4 JA7 JA9 JA12 JA14 JA18
JA6
[JA4] [JA12] [JA18]
Complex permeability
Complex permeability
Complex permeability
Frequency (GHz) Frequency (GHz) Frequency (GHz)
10
1
0
µ'
µ'µ'
µ''
µ''
µ''
10 20 0 10 20 0 10 20
0.1
10
1
0.1
10
1
0.1
ε
' =20
ε
''=1.5
ε
' =8.0
ε
''=0.2
ε
' =7.1
ε
''=0.05
EC-ECE007-0208
http://www.fdk.co.jp
Rubber-based radio wave absorbers (JB Series)
A mixture of synthetic rubber and ferrite, JB Series absorbers control EMI noise in the semi-microwave band (0.8-3.0
GHz), and their flexibility facilitates handling and working. Compared to conventional products, the JB Series yields
higher absorption with smaller thickness.
Applications
Mobile communications: cellular phones,
MCA wireless equipment,
communications base stations
Navigation: GPS, VICS equipment
Wireless LAN:
EC-ECE008-0208
http://www.fdk.co.jp
Magnetic characteristics
EMI absorption characteristics
Material code Center frequency 20dB or more absorption Dimensions
JB08 0.9GHz 0.83~1.00GHz
JB1 1.5GHz 1.37~1.65GHz 100310037.2mm
250325037.2mm
JB1A 1.9GHz 1.75~2.00GHz
JB2 2.5GHz 2.31~2.73GHz 100310036.3mm
250325036.3mm
0
10
20
30
40
50 01234
Frequency (GHz)
Return loss (dB)
JB08 JB1 JB1A JB2
[JB08]
Complex permeability
Frequency (GHz)
[JB2]
Complex permeability
Frequency (GHz)
10
1
0 2.5 5
0.1
10
1
0510
0.1
µ'
µ''
ε
' =37
ε
''=8.5
ε
' =14
ε
''=2.5
µ'
µ''
EC-ECE008-0208
http://www.fdk.co.jp
Wideband radio wave absorbers (WB Series)
WB Series absorbers provide outstanding EMI absorption throughout a wide frequency range, from microwave to
millimeter wave. Light weight is realized by the impregnation of carbons into a polyurethane foam base.
Features
Wideband EMI absorption
Light weight
Superb flexibility
Flame retardant
Applications
Radar antenna cells
Anechoic boxes/chambers
Antenna/target supports
Antenna pattern improvement
EC-ECE009-0208
http://www.fdk.co.jp
Characteristics
Material
code
WB06
WB1
WB2
WB3
WB7
WB20
Frequency range
0.6GHz or more
1.2GHz or more
2.4GHz or more
3.5GHz or more
7.5GHz or more
20GHz or more
Thickness
114mm
57mm
29mm
19mm
10mm
6mm
Weight
(kg/m2)
9.8
4.4
2.4
1.5
1.0
0.5
Dimensions
6103610mm
Applicable band
L, S, C, A, B, X, Ku, K, UHF
L, S, C, A, B, X, Ku, K
S, C, A, B, X, Ku, K
C, A, B, X, Ku, K
X, Ku, K
K
30
25
20
15
10
5
0
0.1 1
WB06 WB1 WB2 WB3 WB7 WB20
10 100
Frequency (GHz)
Return loss characteristics
Return loss (dB)
Ambient conditions
Operating temperature: -70 to +150°C
Humidity: No adverse effect, except where moisture covers the sheet surface continually.
EC-ECE009-0208
http://www.fdk.co.jp
Ferrite radio wave absorbers (HT Series)
Made of sintered ferrites, HT Series products absorb EMI noise by utilizing the principle of magnetic resonance loss.
These high-performance absorbers are suitable for the interior walls of anechoic chambers and for the exterior walls of
buildings to stem out TV ghost images.
Physical properties
Specific gravity 5100kg/m3
Bending strength 120MPa
Compressive strength 280MPa
Young's modulus 1.53105MPa
Vickers hardness 650
Thermal expansion coefficient 7~10310-6 / °C
EC-ECE010-0208
http://www.fdk.co.jp
EMI absorption characteristics
Magnetic characteristics
Material code Center frequency 20dB or more absorption Dimensions
HT21 120MHz 35~400MHz 100310037mm
Free choice of thickness between 6 and 12 mm.
[HT21]
Frequency (MHz)
Return loss (dB)
0
10 100 1000
10
20
30
[HT21]
Frequency (MHz)
Complex permeability
1000
1 10010 1000
100
10
1
µ''
µ'
EC-ECE010-0208
http://www.fdk.co.jp
Ferrite mortar for TV ghost image suppression
Ferrite mortar for highrise buildingStructure (example)
FDK has developed and commercialized new ferrite mortar for preventing the TV ghost images generated by the
reflection of TV signals on highrise buildings. Compared to conventional ferrite tiles, ferrite mortar is a cost-saving
cement-based alternative realizing easier installation and a wider effective frequency range from the VHF to UHF
bands.
Ferrite mortar precast curtain walls
Steel reinforcements
Lightweight concrete
Mn ferrite mortar
(15mm)
Mg ferrite mortar
(15mm)
Dressing tile (7.5mm)
Reflecting metal mesh
Anchor




EC-ECE011-0208
http://www.fdk.co.jp
Features
EMI absorption characteristics
• TV signal absorbing mortar also serving as structural components. Equivalent with conventional mortar
in strength, workability and formability.
• Wide-range TV signal absorption from the VHF to UHF bands. Broader frequency range of absorption
than ferrite tiles, by laminating two types of ferrite mortar layers.
• Equivalent or lower construction cost as compared to the construction cost required by conventional
ferrite tiles.
• Adaptable to various finishing works such as tile dressing, glass curtain wall finish, fiber-reinforced
concrete finish, and wall painting.
• Excellent design flexibility to suit any frequency range and incident angle condition.
0 100 200 300 400 500 600 700 800
40
30
20
10
0
Frequency (MHz)
Return loss (dB)
VHF TV band UHF TV band
Ferrite mortar EMI absorption
Ferrite mortar
Conventional ferrite tiles
EC-ECE011-0208
http://www.fdk.co.jp
Plastic-based radio wave absorbers (PA Series)
Physical properties
EMI absorption (attenuation) Magnetic characteristics
The PA Series EMI absorbers feature remarkable attenuation in the GHz frequency range by mixing iron carbonyl into
a polyester resin and thermosetting the mixture. This thermosetting polyester gives outstanding heat resistance and
precision molding to any customized shape.
PA Series rod shapes
0
01020
50
100
Frequency (GHz)
[PA3]
Attenuation constant (dB/cm)
10
01020
1
0.1
Frequency (GHz)
Complex permeability
[PA3]
µ'
µ''
ε
' =14
ε
''=0.8
EC-ECE012-0208
Specific gravity 4500kg/m3
Bending strength 50MPa
Barcol hardness 50
Thermal expansion coefficient 20310-6 / °C
http://www.fdk.co.jp
Ferrite magnetic powder
NB45/NB44 size distribution
100
80
60
40
20
01 10 100
Cumulative distribution (Wt%)
1000
Diameter (µm)
Features
Fine EMI absorption at high frequencies
Cost advantage over metallic magnetic materials
Superb voltage withstand thanks to high intrinsic
resistance
Applications
EMI control and radio wave absorption
Mixing into plastics as magnetic compounds
Characteristics
100
µ
m
Measurement of ø25mm standard rings for initial permeability, sintered density,
and intrinsic resistance.
EC-ECE013-0208
Product code
Feature
Material
Median diameter
Apparent density (kg/m
3
)
Intrinsic resistance (•m)
Curie temp. (°C)
Sintered density(kg/m
3
)
Initial permeability
NB45
Mn-Zn ferrite
20
µ
m
2.53103
1
180
4.83103
2000
NB44
High resistivity
Mg-Zn ferrite
20
µ
m
2.43103
105
145
4.63103
400
High dielectric loss,
magnetic loss
http://www.fdk.co.jp
Wideband anechoic boxes
Features
Compact size permitting handy use in experiment
rooms
EMI measurement over a wide frequency range
(above 0.8 GHz) enabled by incorporating the
wideband WB Series absorbers
Superb noise shielding performance (50 dB or more)
Suitable for development of antennas, cellular
phones and other communications equipment
Custom design options to answer each customer's
varied needs
Applications
Precise measurement of radio waves for cellular
phones, wireless LAN, blue tooth, digital communica-
tions equipment
Simple measurement of microwave antenna
directivities and patterns
Overall testing on the radio wave operations of
electronic equipment
Wideband anechoic boxes are compact equipment enabling precise measurement of electromagnetic waves over a wide
frequency range starting from the semi-microwave band. The boxes remarkably cut internal EMI reflections using thin
urethane absorbers that are lined on their interior walls, and also realize an impressive shielding from external noise.
Type 1 anechoic box
Inner dimensions: 1,20035003500 mm Type 2 anechoic box
Inner dimensions: 1,45031,2203114 mm
EC-ECE014-0208
http://www.fdk.co.jp
Anechoic box specifications
Appearance
Weight
See photo.
Specifications Type 1: FABR-6613-W Type 2: FABR-121213-W
Plastic rotation table
ø50mm (with detachable ø100mm
table)
Rotation table driven by electric
ø90mm revolving stage (electricity
from rotary connector)
Double doors on front
Door opening: 3543354mm
French door type
(With hand-lock)
Automated driving of rotation table
by controller. Synchronized control
of rotation table and measuring
instrument by PC (optional).
Flexible shielding materials on
doors and panels
Controller
Power cable
Stage connect cable
Stand with 4 casters
Table dimensions: 
500 (W)3750 (D)3740mm (H)
with stoppers
Wideband urethane (WB Series)
2 panel doors on sides
Door opening: 2543254mm
Coaxial connector on door center
(SMA)
Rotation table
Double doors
Mechanical controller
Shielding material
Attachments
Casters
EMI absorbers
Doors & dimensions
630mm (W)31330mm (L)3
630mm (H)
500 (W)31,200 (L)3500mm (H)
[excluding absorbers]
Rotation table (plastic)
ø80mm (with detachable ø700mm
table)
Rotation table driven by electric
ø180mm revolving stage
(electricity from rotary connector)
1 door on front
2 door on sides
(2 door types: option)
Same as Type 1
Same as Type 1
Same as Type 1
No stand
With 4 casters
With stoppers
Same as Type 1
2 panel doors on sides
(2 door types: option)
Door opening: 5003500mm
1584mm (W)31227mm (L)3
1354mm (H)
1,450 (W)31,114 (L)31,220mm (H)
[excluding absorbers]
Outer dimensions
Approx. 220kg
Aluminum plate (8mm thick)
See photo.
Approx. 340kg
Aluminum plate (10mm thick)
Body material
Inner (effective) dimensions
EC-ECE014-0208
http://www.fdk.co.jp
Anechoic boxes “Dempa Ambako®” (fixed frequency)
Anechoic box for 1.5 GHz
Fixed frequency anechoic boxes have been developed using the rubber-based EMI absorbers JA and JB, for simple
indoor measurement of EMI in the GHz band. These boxes feature cost-effective compact size, excellent shielding
from external noise, and minimized internal EMI reflections. Customized dimensions and frequencies are available
besides the standard options below.
Product list
“Dempa Ambako” is a registered trademark of FDK.
Product code Dimensions Applicable frequency
FAB333-n30033003300mm 0.8, 1.5, 1.9, 2.5GHz
FAB551-n500350031,000mm 0.8, 1.5, 1.9, 2.5GHz
FAB111-n1,00031,00031,000mm 0.8, 1.5, 1.9, 2.5GHz
Note: The symbol in n depends on applicable frequency.
EC-ECE015-0208
http://www.fdk.co.jp
Dempa Ambako” applications (examples)
Dempa Ambako are useful in a variety of work from the measurement of antenna performance to the
testing of cellular phones, GPS, LAN equipment, ETC devices operating in the GHz band.
1. Antenna measurement Dempa Ambako
2. Measurement of EMI from communications devices
Dempa Ambako
3. Testing on receiving performances of communications devices
Dempa Ambako
Absorbers
Direct wave
Absorption
Absorption
Absorbers
Direct wave
Absorption
Absorption
Transmitting antenna
Absorbers
Direct wave
Absorption
Absorption
Receiving antenna
Transmitting antenna
Receiving antenna
EC-ECE015-0208
http://www.fdk.co.jp
Design of radio wave absorbing materials
Simulations of return loss and attenuation constant:
The return loss (from perpendicular or oblique incidence) and attenuation constant are calculated form complex
permeability
µ
and complex permittivity ε, in order to decide the thickness and other parameters.
Example of return loss simulation from perpendicular incidence of plane wave (rear short):
Input impedance
Reflection coefficient
Return loss
Evaluation of radio wave absorbing materials
Return loss/
µ
measuring systems (short method) Attenuation/ ε
µ
measuring systems (S parameter)
The complex permeability (
µ
=
µ'
- j
µ"
) and complex permittivity (ε = ε
'
- jε
"
) of a material are determinable from (a) the
values of inductance, capacitance and resistance or (b) complex input impedance or (c) complex reflection coefficient
and complex transmission coefficient of this material.
Simulation example
Measurement example
Network
analyzer
Signal
generator
Air line (or waveguide)
Specimen
Network
analyzer
Signal
generator
Air line (or waveguide)
Specimen
Return loss (dB)
Return loss (dB)
Frequency (GHz) Frequency (GHz)
• •
••
Specimen
rear short
EC-ECE016-0208
Electronics Sales Div.
5-36-11, Shinbashi, Minato-ku, Tokyo 105-8677, Japan (Hamagomu Bldg.)
TEL : (81)-3-5473-4671 FAX : (81)-3-3431-9436
U.S.A. FDK AMERICA, INC. CORPORATE OFFICE
2270 North First Street, San Jose, California 95131-2022, U.S.A.
TEL: (1)-408-432-8331 FAX: (1)-408-435-7478
FDK AMERICA, INC.BOSTON OFFICE
411 Waverley Oaks Road, Suite 324, Waltham.
Massachusetts 02452-8437, U.S.A.
TEL: (1)-781-899-7700 FAX: (1)-781-899-7701
FDK AMERICA, INC. SAN DIEGO OFFICE
6540 Luck Blvd Suite C274 San Diego,
California 92121-2766, U.S.A.
TEL: (1)-858-558-8368 FAX: (1)-858-558-6005
Europe FDK ELECTRONICS GMBH
Hansaallee 177C, 40549 Düsseldorf, Germany
TEL: (49)-211-591574 FAX: (49)-211-593549
FDK ELECTRONICS UK LIMITED
Suite 4C Celect House 12A Fairbairn Road, Kirkton North Livingston EH54 6TS,
Scotland, United Kingdom
TEL: (44)-1506-467981 FAX: (44)-1506-467982
Asia FDK HONG KONG LTD.
Suite 1601-1602, Tower3, China Hong Kong City,
33 Canton Road, Tsim Sha Tsui Kowloon, Hong Kong
TEL: (852)-27999773 FAX: (852)-27554635
FDK SINGAPORE PTE., LTD.
4, Leng Kee Road, #06-07/08 SiS Building, Singapore. 159088,
Republic of Singapore
TEL: (65)-472-2328 FAX: (65)-472-5761
FDK reserves the right to change the specifications of its products
without prior notice.
The numerical values given in this catalog are standard values, not
guaranteed values. The products introduced in the catalog may
develop defects due to inappropriate operating conditions. Before
using our products and associated equipment, you are requested to
conduct a full reliability test.