KEYCOM provides solutions in the 300 GHz to 1 μHz frequency range (SHF/EHF/MW/UHF/VHF/ULF).
We undertake designing, manufacturing and measuring. Please feel free to contact us.
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EMC Products

Model No. XEM
Feature

Contents

Compact 3m method (Anti-electromagnetic interference measure) Evaluation system emc
EMC Countermeasure products (Wave absorption sheet, Noise suppression sheet, RFID sheet, Solid phantoms) ema
(EMC) Amplifier amp'
EMC/EMI/EMS (Electromagnetic interference / Electromagnetic compatibility) Antenna ant'
Flexible Coaxial Cable Assembly mmt'
Stealth desk emb
Millimeter-wave module 2.5-dimensional mapping system  
Large size XY scanner type, field intensity measurement system  

 

Keycom supplies, installs and adjusts measurement systems and accessories for EMC/EMI(electromagnetic compatibility / electromagnetic interference).

EMC : Electromagnetic Compatibility EMS : Electromagnetic Susceptibility (Immunity)
※EMS(Electromagnetic Susceptibility) : it is that electronics are affected from electromagnetic wave from outside. (example : Radiated electromagnetic field, burst, lightning surge etc.)
EMI : Electromagnetic Interference (Emission)
※EMI(Electromagnetic Interference) : it occurs from electronics and interferes with other things. (example : radiation noise, conduction noise etc.)

Item Specification
Corresponding Standard 1.CISPR(International)
2.VCCI(Japan)
3.FCC(U.S.A.)
Measurement Item 1.Electrostatic discharge(IEC 61000-4-2)
2.Radiated RF electromagnetic field(IEC 61000-4-3)
3.Burst wave noise(IEC 61000-4-4)
4.Lightning surge noise(IEC 61000-4-5)
5.RF continuous wave conduction(IEC 61000-4-6)
6.Power frequency magnetic field(IEC 61000-4-8)
7.Voltage dip short interruptions(IEC 61000-4-11)

Emission test
1.Field intensity(10kHz~1,000MHz.~18GHz)
2.Disturbance voltage(power code, signal line)
3.Power harmonics(IEC 61000-3-2)
4.Flicker(IEC 61000-3-3)

 


 

 

 

The contents below are only for your reference. Please click the links if you need more information.
Compact 3m method (Anti-electromagnetic interference measure) Evaluation system, Shield case material evaluation system for EMC measures
Compact 3m method (Anti-electromagnetic interference measure) Evaluation system
emc01002060118-04
The anechoic chamber is not required.
It is 1.2m height, 60cm width.
* Feature
Based on 3m method and 10m method, it can be measured without the anechoic chamber. (0.5~26.5GHz)
As the system is vertical type, it is easy to change specimen.
It converts the radiated wave from the measurement specimen into the plane wave with a dielectric lens.
Amplifier in a short distance is not required due to low loss.
The anechoic chamber is not required because of eliminating signals from outside.
It can be measured by plane wave in the short distance, the measurement based on 3m method and 10m method is performed.
Unnecessary electric wave can be observed from which part of the measurement specimen radiation by moving XY stage in the far field.
Cavity type resonator method, Shield case material evaluation system for EMC measures
emc71002070405-08
This is an evaluation system for materials of conductive case with electric wave absorbing function.
 
EMC Countermeasure products (Wave absorption sheet, Noise suppression sheet, RFID sheet, Solid phantoms)
Noise suppression sheet
ema01002060303-01
Noise suppression sheet is used for prevention from oscillation in laptop PCs / mobile phones etc. and EMC countermeasures. By putting this sheet on problem areas, you can improve them.
Noise suppression sheet
for near-field high performance low frequency(300MHz-1GHz)
ema04 002070412-03
Noise suppression sheet is used for prevention from oscillation in laptop PCs / mobile phones etc. and EMC countermeasures. By putting this sheet on problem areas, you can improve them. Compared with other standard products, it has 2-3 times higher ability.
 
Super broadband wave absorption film (Transparent film)
ema03002070405-09
Configulation of a plasma display and a liquid crystal display, countermeasuring points are shown below (a picture : Configuration of display and countermeasuring points of leakage of electric wave). Usually, iron or aluminium, plastic with aluminum evaporation are used for cases. On this occasion, as countermeasures, holes of the case is blocked by conductive sheet, the case is mounted through conductive gaskets and the case is floating in the air electrically so that it won't become an antenna. But thesedays, it is a big problem that inside of a case may become a resontor and unnecessary electromagnetic wave is amplified a hundredfold and even 500 times, then some amount of wave leak from holes of a case or cables, display. To improve such problem, this super broadband wave absorption film is effective.
 
EMC shield tube (for electromagnetic protection of wire harness)
ema05139060415-02
You can easily wrap up cables with this tube by a zipper.
After setting many electric wires in a device, enwrap a harness which is banded together to increase electromagnetic shield effect.
According to a condition of using environment, you can choose combination from : 5 kinds of base materials of tube x 3 kinds of connect type x 5 kinds of additional shield.
RFID Improvement sheet
ema02002060304-02
When you stick RFID on a metal plate, by inserting this "RFID improvement sheet" between the plate and RFID, you can prevent deterioration of sensitivity.
 
Silicone phantom (Silicon phantom)
ema062081115-04
This is a human body phantom for driving test of a collision avoidance radar (real run test), development of radar system, specific absorption rate (SAR) measurement of mobile phone, and for a test of wearable communication. The electric constant is based on IEEE15528.
・There are such types : head only, arm only, whole body etc.. And it is possible to make a phantom to be separated its skin only.
 
(EMC) Amplifer
Low-noise amplifier (for room temperature)
amp46

・Low-noise, wideband
・Low power consumption
・Please use at room temperature.

 
EMC / EMI / EMS (Electromagnetic interference / Electromagnetic compatibility) Antenna
Antenna for radiated immunity
ant45
 
EMI measurement antenna
ant46
 
Coaxial cable / Low loss micro wave cables
Millimeter wave / Microwave Flexible Coaxial Cable Assembly
mmt02002011019-06
This flexible coaxial cable can be easily and freely bent by hands to fit to or in your devices.
Based on its longtime experience in the industry, KEYCOM’s cable assemblies are designed to be simple yet practical.
Because PTFE foam is used for the dielectric insulation, this cable assembly possesses low loss and high phase stability.
It is also ideal for measurement applications.
 
Stealth desk
Stealth desk
emb01
These are a desk and a chair to be used inside of an anechoic chamber.
Calculated from Ulab which is defined by CISPR16-4FDIS according to measurement method defined by CISPR/A/614/FDIS, effect from a stealth desk and a chair is less than 1dB.
Therefore, these items are very suitable for using inside of an anechoic chamber.

 

 

※ Only a desk. (not include a chair)

 

 
Millimeter-wave module 2.5-dimensional mapping system
Millimeter-wave module 2.5-dimensional mapping system
SYS18
Enables to measuring the frequency and power of each point of the millimeter-wave module, and enables to creat mapping.
 
Large size XY scanner type, field intensity measurement system
Large size XY scanner type, field intensity measurement system
SYS19
This system is to scan X-Y direction / proximity distance(about 100~200mm) of a large printed wiring board or device with a small antenna and observe electromagnetic field distribution. Keycom provides small antennas for electric field, magnetic field and electromagnetic field.