Diamond Microwave Chambers Ltd (DMC) offers the following
High Performance Absorbers:
– DMC-PP-HY Series of Polypropylene Hybrid Absorbers
– DMC-PP-MI Series of Polypropylene Broadband Microwave Absorbers
– DMC-PS Series – 30MHz-40GHz Polystyrene Microwave Absorbers

DMC-PP-HY Series – 10MHz-40GHz Polypropylene Hybrid Absorbers 

DMC Expanded Polypropylene Hybrid absorbers for EMC Chambers

DMC-PP-HY Polypropylene hybrid electromagnetic wave absorber is designed with state-of-the-art to ensure extremely high uniformity of carbon powder density throughout the absorber.
When used with ferrite tile, the HY series has a broadband operating frequency range starting from 10 MHz up to 40 GHz.
Our unique carbon powder synthesis technique ensures repeatable and predictable test results, almost zero carbon dust, clean test sites and low maintenance cost.

Designed to be used in EMC chambers, the HY Series absorber has different models based on size : DMC-PP-HY-300, DMC-PP-HY-500and DMC-PP-HY-750

 DMC-PP-HY Series – 10MHz~40GHz Polypropylene Hybrid Absorbers Data Sheet

DMC-PP-MI Series – 60MHz~80GHz Polypropylene Broadband Microwave Absorbers 

DMC-PP-MI series are broadband high performance polypropylene based absorber that covers frequency from 60MHz to 80GHz . The appearance and characteriscs are similar to HY series, but MI series has been specifically designed for best performance in Microwave frequency range. Therefore, this series of absorbers are highly preferred for Antenna Pa ern Measurement (APM), Compact Antenna Test Range (CATR), Radar Cross Secon (RCS) and Electronic Warfare Test (EWT) applicaon.

Depending on the application, MI series can cover lower frequency band without going with ferrite tile In such case, the size and height of the absorber should be large enough to cover lower frequency band.

MI series can also be installed on the floor for tesng VSWR in EMC chambers.In addion to implemenng pseudo-free space at microwave frequency, MI series can be used for Semi- anechoic chamber. Based on size we have different models, DMC-PP-MI-300, DMC-PP-MI-500 and DMC-PP-MI-750.

Part number reference: DMC-PP-MI-300, DMC-PP-MI-500 , DMC-PP-MI-750

 DMC-PP-MI Series – 60MHz~80GHz Polypropylene Broadband Microwave Absorbers Data Sheet

DMC-PS Series – 30MHz-40GHz Polystyrene Microwave Absorbers 

DMC Polystyrene hybrid absorbers are high performance carbon loaded absorbers with operang frequency range 30 MHz to 40 GHz. These absorbers are opmized to be used with ferrite les in EMC chambers. It’s close cell structure provides more stable performance and hygroscopic.

• Made by mold giving uniform and precise fitting
• Easy to install, plug-in pyramids
• No reflective edges, as the bases interlock provides 100% coverage
• Fire retardant to UL94 HBF, DIN4102-B2, En11925
• Clean room ; class ISO 14644-1
• ROHS and REACH compliant
• High wear and tear resistant
• 25 years life

Designed for use in
• EMC Chambers
• Antenna Measurement Chambers
• MIL-STD 461 military product test chambers
• Radar Cross Section, RCS Chambers

 DMC-PS Series – 30MHz-40GHz Polystyrene Microwave Absorbers Data Sheet