EMI Absorber
Advanced Absorber Solutions for Cleaner, More Stable Electronic Systems
KONLIDA’s EMI absorber portfolio is engineered to suppress high-frequency electromagnetic noise through magnetic loss, resistive loss, and controlled heat dissipation. Our solutions—ranging from high-permeability magnetic absorbers to conductive dual-layer absorbers and thermally enhanced dual-layer absorbers—are designed to target broadband interference, reduce cavity resonance, and stabilize signal integrity in compact electronic systems. By converting unwanted RF/EMI energy into heat, these materials create a cleaner electromagnetic environment essential for 5G devices, high-speed circuits, precision sensors, and advanced consumer electronics.
What’s the Difference Between EMI Shielding and EMI Absorber?
- EMI Shielding uses conductive or magnetic barriers — like metal enclosures, gaskets, tapes, or coatings — to reflect or redirect electromagnetic noise away from sensitive electronics, similar to a Faraday cage. It blocks interference from entering or exiting circuits.
- In contrast, EMI Absorbers don’t just block waves — they dissipate EMI energy by converting it into heat via magnetic or resistive loss, making them ideal for reducing noise at the source, especially in cavities or directly on radiating components.
Main Products
KONLIDA’s EMI absorbing sheets are made from silicone-based composites blended with high-loss fillers such as magnetic powders or graphene. Designed for mmWave applications (50–110 GHz), they offer excellent absorption of surface-wave reflections, high-temperature resistance (up to ~200 °C), and good elasticity. These ultra-thin, flexible sheets can be self-adhesive for easy mounting and provide non-conductive isolation without disrupting PCB functionality.
Ferrite Sheet
Our ferrite sheets consist of soft magnetic ferrite particles embedded in a polymer matrix, delivering strong EMI attenuation in the 1 MHz to 3 GHz range. With high magnetic permeability, low dielectric loss, and a self-adhesive, thin form factor (typically 0.1–1.0 mm), they easily integrate into tight spaces around boards or cables. They are non-conductive, moisture-resistant, and thermally stable up to ~125 °C, making them effective for crosstalk suppression and EMC compliance.
Nanocrystalline
KONLIDA’s nanocrystalline materials are engineered from ultra-fine-grained, soft-magnetic alloys formed by controlled crystallization. These materials exhibit permeability far superior to conventional ferrites, high current-handling capacity, and extremely low core losses. Optimized for high-frequency EMI/RFI suppression (10 kHz–5 MHz and beyond), they maintain stability up to ~125 °C, making them ideal for demanding, wideband shielding applications.
KONLIDA provides a complete portfolio of microwave and mmWave absorber materials engineered for free-space, near-field, and cavity-resonance suppression. Our capabilities span low-loss dielectrics, filled polymers, molded elastomers, reticulated foams, technical textiles, and custom composite structures—ready for rapid integration into advanced electronic systems.
We support every stage of your development cycle with:
- In-house testing and characterization
- Electromagnetic simulation and design support
- Pre-validated parameters for major EM modeling platforms
- Full custom formulation and thickness tuning
- Wideband performance from MHz to >100 GHz
- Multifunctional absorber solutions for compact, high-density devices
KONLIDA’s engineered materials help ensure long-term reliability, stable performance, and seamless system integration. Explore our absorber portfolios for detailed specifications or contact us for tailored recommendations.
Low-Loss Dielectrics
Dielectric materials (εr 1.05–30) available in rigid, flexible, and foam formats.
Microwave Absorbing Foams
PU-based RF absorbers for effective reflection control.
Absorbing Gap Fillers
Hybrid materials that reduce EMI while providing a thermal interface.
Elastomers & Films
Flexible absorbers for near-field suppression and mmWave resonance control.
Magnetic & Specialty Absorbers
High-performance materials for demanding or rugged applications.
Custom Molding & Machining
Injection molding, casting, and CNC manufacturing for complex absorber parts.
Sample Kits & Accessories
Samples, tapes, adhesives, and accessories for fast evaluation and integration.
EMI Absorber
Advanced Absorber Solutions for Cleaner, More Stable Electronic Systems
KONLIDA’s EMI absorber portfolio is engineered to suppress high-frequency electromagnetic noise through magnetic loss, resistive loss, and controlled heat dissipation. Our solutions—ranging from high-permeability magnetic absorbers to conductive dual-layer absorbers and thermally enhanced dual-layer absorbers—are designed to target broadband interference, reduce cavity resonance, and stabilize signal integrity in compact electronic systems. By converting unwanted RF/EMI energy into heat, these materials create a cleaner electromagnetic environment essential for 5G devices, high-speed circuits, precision sensors, and advanced consumer electronics.
What’s the Difference Between EMI Shielding and EMI Absorber?
- EMI Shielding uses conductive or magnetic barriers — like metal enclosures, gaskets, tapes, or coatings — to reflect or redirect electromagnetic noise away from sensitive electronics, similar to a Faraday cage. It blocks interference from entering or exiting circuits.
- In contrast, EMI Absorbers don’t just block waves — they dissipate EMI energy by converting it into heat via magnetic or resistive loss, making them ideal for reducing noise at the source, especially in cavities or directly on radiating components.
Main Products
KONLIDA’s EMI absorbing sheets are made from silicone-based composites blended with high-loss fillers such as magnetic powders or graphene. Designed for mmWave applications (50–110 GHz), they offer excellent absorption of surface-wave reflections, high-temperature resistance (up to ~200 °C), and good elasticity. These ultra-thin, flexible sheets can be self-adhesive for easy mounting and provide non-conductive isolation without disrupting PCB functionality.
Ferrite Sheet
Our ferrite sheets consist of soft magnetic ferrite particles embedded in a polymer matrix, delivering strong EMI attenuation in the 1 MHz to 3 GHz range. With high magnetic permeability, low dielectric loss, and a self-adhesive, thin form factor (typically 0.1–1.0 mm), they easily integrate into tight spaces around boards or cables. They are non-conductive, moisture-resistant, and thermally stable up to ~125 °C, making them effective for crosstalk suppression and EMC compliance.
Nanocrystalline
KONLIDA’s nanocrystalline materials are engineered from ultra-fine-grained, soft-magnetic alloys formed by controlled crystallization. These materials exhibit permeability far superior to conventional ferrites, high current-handling capacity, and extremely low core losses. Optimized for high-frequency EMI/RFI suppression (10 kHz–5 MHz and beyond), they maintain stability up to ~125 °C, making them ideal for demanding, wideband shielding applications.
KONLIDA provides a complete portfolio of microwave and mmWave absorber materials engineered for free-space, near-field, and cavity-resonance suppression. Our capabilities span low-loss dielectrics, filled polymers, molded elastomers, reticulated foams, technical textiles, and custom composite structures—ready for rapid integration into advanced electronic systems.
We support every stage of your development cycle with:
- In-house testing and characterization
- Electromagnetic simulation and design support
- Pre-validated parameters for major EM modeling platforms
- Full custom formulation and thickness tuning
- Wideband performance from MHz to >100 GHz
- Multifunctional absorber solutions for compact, high-density devices
KONLIDA’s engineered materials help ensure long-term reliability, stable performance, and seamless system integration. Explore our absorber portfolios for detailed specifications or contact us for tailored recommendations.
Low-Loss Dielectrics
Dielectric materials (εr 1.05–30) available in rigid, flexible, and foam formats.
Microwave Absorbing Foams
PU-based RF absorbers for effective reflection control.
Absorbing Gap Fillers
Hybrid materials that reduce EMI while providing a thermal interface.
Elastomers & Films
Flexible absorbers for near-field suppression and mmWave resonance control.
Magnetic & Specialty Absorbers
High-performance materials for demanding or rugged applications.
Custom Molding & Machining
Injection molding, casting, and CNC manufacturing for complex absorber parts.
Sample Kits & Accessories
Samples, tapes, adhesives, and accessories for fast evaluation and integration.
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