Knowde Enhanced TDS
Identification & Functionality
- Composite Materials Functions
- Technologies
- Product Families
Features & Benefits
- Features
- Lowest dielectric constant available
- Low Z-axis CTE
- Lightweight / low density
- Uniform electrical properties over a
- wide frequency range
Applications & Uses
- Recommended Applications
- Airborne antenna system
- Lightweight feed networks
- Military radar systems
- Missile guidance systems
- Point-to-point digital radio antennas
Properties
- Typical Properties
| Value | Units | Test Method / Conditions | |
| Dielectric Constant, εr, Process at 10 MHz | 2.00 ± 0.04 | — | IPC-TM-650 2.5.5.5 |
| Surface Resistivity | 2.08 x 10^6 | MΩ | IPC-TM-650, 2.5.17.1 |
| Dielectric Constant, εr, Design | 2 | — | Differential Phase Length Method |
| Volume Resistivity | 1.74 x 10^7 | MΩ-cm | IPC-TM-650, 2.5.17.1 |
| Dissipation Factor tan d, at 10 GHz | 0.0021 | — | IPC-TM-650 2.5.5.5 |
| Thermal Coefficient of εr | 20 | ppm/°C | IPC-TM-650 2.5.5.5 |
| Electrical Strength | 40 | kV | IPC-TM-650, 2.5.6 |
| Dimensional Stability | -0.38 | % | IPC-TM-650, 2.4.39A |
| Moisture Absorption | 0.31 | % | IPC-TM-650, 2.6.2.1 |
| Thermal Conductivity | 0.33 | W/m/°K | ASTM C518 |
| Coefficient of Thermal Expansion - X Axis | 54 | ppm/°C | IPC-TM-650 2.1.41 |
| Coefficient of Thermal Expansion - Y Axis | 47 | ppm/°C | IPC-TM-650 2.1.41 |
| Coefficient of Thermal Expansion Z Axis | 40 | ppm/°C | IPC-TM-650 2.1.41 |
| Outgassing Total Mass Loss | 0.01 | % | ASTM E-595 |
| Outgassing Collected Volatile Condensable Material | 0.01 | % | ASTM E-595 |
| Outgassing Water Vapor Regain | 0.01 | % | ASTM E-595 |
| Density | 1.4 | g/cm3 | ASTM D792 |
| Copper Peel | min. 4 | pli | IPC-TM-650, 2.4.8 |