DiClad: Woven Fiberglass/PTFE Composite Materials
Datasheet: DiClad
Fabrication Guidelines: Arlon DiClad, CuClad, IsoClad and AD Series Laminates
Microwave And RF Materials Guide
DiClad laminates are woven fiberglass/PTFE composite materials for use as printed circuit board substrates. Using precise control of the fiberglass/PTFE ratio, DiClad laminates offer a range of choices from the lowest dielectric constant and dissipation factor to a more highly reinforced laminate with better dimensional stability.
The woven fiberglass reinforcement in Di- Clad products provides greater dimensional stability than nonwoven fiberglass reinforced PTFE based laminates of similar dielectric constants. The consistency and control of the PTFE coated fiberglass cloth allows Arlon to offer a greater variety of dielectric constants and produces a laminate with better dielectric constant uniformity than comparable nonwoven fiberglass reinforced laminates. The coated fiberglass plies in DiClad materials are aligned in the same direction. Crossplied versions of many of these materials are available as Arlon CuClad materials.
DiClad laminates are frequently used in filter, coupler and low noise amplifier applications, where dielectric constant uniformity is critical. They are also used in power dividers and combiners where low loss is important.
DiClad 522 and DiClad 527 (Er=2.40-2.65) use a higher fiberglass/PTFE ratio to provide mechanical properties approaching conventional substrates. Other advantages include better dimensional stability and lower thermal expansion in all directions. The electrical properties of DiClad 522 and 527 are tested at 1MHz and 10GHz respectively.
Traditional
Products - High PTFE to Glass Ratio, Lowest Loss |
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Woven
Fiberglass Reinforced PTFE - Unidirectional Plies |
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2.40
- 2.60 ± 0.05 |
0.001 |
GT
/01 |
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2.40
- 2.60 ± 0.04 |
0.0018 |
GX
/02 |
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2.33
± 0.02 |
0.0013 |
GY
/05 |
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2.17,
2.20 ± 0.02 |
0.0009 |
GY
/05 |
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*
Mil-S-13949 inactivated |
Features:
- Extremely Low Loss Tangent
- Excellent Dimensional Stability
- Product Performance Uniformity
Benefits:
- Electrical Properties are Highly Uniform across Frequency
- Consistent Mechanical Performance
- Excellent Chemical Resistance
Typical Applications:
- Military Radar Feed Networks
- Commercial Phased Array Networks
- Low Loss Base Station Antennas
- Missile Guidance Systems
- Digital Radio Antennas
- Filters, Couplers, LNAs
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Datasheet: DiClad
Fabrication Guidelines: Arlon DiClad, CuClad, IsoClad and AD Series Laminates
Microwave And RF Materials Guide