Leader Tech offers microwave absorbers with customizable thickness and material composition using urethane or silicone as the substrate. The following sections introduce the key features and specifications of Leader Tech's product lineup, the suitable applications, and the company’s support services.
These silicone rubber absorbers are compatible with the 1 to 18 GHz range and can be customized for specific frequencies by adjusting thickness and composition. These absorbers provide an average attenuation of 20 to 30 dB. They are suitable for various applications, including aircraft, electronics, EMI shielding, antenna crosstalk reduction, and radar cross-section reduction.
Reference: Leader Tech Official Website（https://leadertechinc.com/microwave-absorbers/tuned/）
The pyramidal shape provides a gradual impedance transition, achieving high reflection attenuation particularly on anechoic chamber walls. These flame-retardant and halogen-free absorbers are suitable for applications such as antenna isolation, side-lobe and back-lobe reduction, EMI countermeasures, radar cross-section reduction, and test boxes.
Reference: Leader Tech Official Website（https://leadertechinc.com/microwave-absorbers/pyramidal-foam/）
Made of open-cell polyurethane foam, these absorbers effectively attenuate microwaves based on insertion loss. They are suitable for a wide range of applications, including antenna insulation, reduction of side lobes and back lobes, EMI countermeasures, radar cross-section reduction, and test boxes. The absorbers feature a flame-retardant and halogen-free composition, with support for operating temperatures from −51 to 121°C.
Reference: Leader Tech Official Website（https://leadertechinc.com/microwave-absorbers/reticulated-foam/）
This resource introduces products suitable for various applications to help you select microwave absorbers that meet your company's needs.Explore recommended microwave absorbers designed for diverse requirements, including next-generation R&D, high-density packaging, stealth technology, and RCS reduction.
Leader Tech microwave absorbers should be selected based on the target frequency, installation space, and whether the main issue is EMI suppression, chamber reflection control, or radar cross-section reduction.
| Product | Frequency Bandwidth | Absorption Performance | Size | Material | Use Cases |
|---|---|---|---|---|---|
| RF-LB | 10 MHz to 4 GHz | 50 dB/cm or more at 2.5 GHz | Approximately 30.5 cm × 30.5 cm | Silicone-based elastomer | Low-frequency EMI suppression |
| RF-LW | 800 MHz to 6 GHz | 85 dB/cm at 6 GHz | Approximately 30.5 cm × 30.5 cm | Silicone-based elastomer | Cavity resonance control |
| GDS | 18 GHz to 35 GHz | 80 dB/cm at 20 GHz | Standard 30.5 cm × 30.5 cm | Silicone-based high-loss elastomer | High-frequency cavity damping |
Tuned Microwave Absorbers are suitable for specific-frequency suppression from 1 GHz to 18 GHz. They work well for antenna crosstalk reduction, cavity resonance control, EMI shielding, aircraft applications, and radar cross-section reduction.
Pyramidal Foam Microwave Absorbers are recommended for anechoic chamber walls, test boxes, and other spaces where reflected waves must be reduced. Their pyramidal structure helps create gradual impedance transition and strong reflection loss.
Reticulated Foam Microwave Absorbers are suitable for lightweight RF attenuation in applications such as antenna isolation, side-lobe and back-lobe reduction, EMI countermeasures, and radar cross-section reduction. They are also useful when flame-retardant and halogen-free material is required.
The RF absorber market is expanding rapidly, driven by the increasing need for EMI (Electromagnetic Interference) reduction in 5G/6G, autonomous driving, and defense applications.
This site provides comparative information on products and manufacturers by application to help you identify the ideal solutions for R&D, anechoic chambers, and high-frequency testing.
Leader Tech provides support for material customization and performance optimization of the microwave absorbers based on application and frequency. The company also collaborates with OEMs and designers to resolve technical challenges, aiming to reduce cavity resonance and optimize insertion loss. It actively welcomes technical inquiries and product consultations.
Before contacting Leader Tech or a supplier, prepare the key technical conditions below to help identify the most suitable microwave absorber.
| Company Name | Leader Tech Inc. |
|---|---|
| Headquarters Address | 12420 Race Track Rd Tampa, Florida 33626 |
| Official Website | https://leadertechinc.com/ |
| Frequency Range |
|---|
| 3GHz-320GHz |
| Material |
| Urethane Foam |
| Key Features |
| Up to 50 dB of absorption |
At just 550g per panel—approximately half the weight of competing products (*1)—this polyurethane foam absorber covers a wide frequency range from 3 to 320 GHz.
Delivers 50 dB absorption, outperforming conventional heavy ferrites.
Velcro-backed for rapid mounting, ideal for temporary setups and cost-effective maintenance.
| Frequency Range |
|---|
| 20MHz-3GHz |
| Material |
| Elastomer |
| Key Features |
| Permeability (at 1 MHz): 150 |
Heat-resistant elastomer: Designed for direct SMT processing and high-temperature durability.
Ultra-thin (from 0.1 mm) for high-density integration with robust EMI suppression.
It significantly reduces assembly workload and enables EMI countermeasures without altering the existing manufacturing process.
| Frequency Range |
|---|
| 1-35 GHz |
| Material |
| Elastomer |
| Key Features |
| Reflection Performance: –20 dB |
Frequency-tuned for specific radar absorption, offering superior stealth performance over standard RF sheets (*2).
Millimeter-thin design delivers –20 dB reflection, ensuring high absorption while preserving aerodynamic integrity.
Excellent conformance to complex geometries with thermal stability from –60°C to 150°C—ideal for aerospace platforms.