• March 24. 2026

How Does Nickel-Free EPIG Improve PIM Performance in Base Station Antennas?   Passive Intermodulation (PIM) is one of the most critical performance killers in modern cellular infrastructure. In a base station antenna system, PIM appears as unwanted interference generated by passive components—connectors, cables, and the printed circuit board itself—when two or more high-power transmit signals...

• March 24. 2026

How Does Hybrid Stackup of AD250C and FR-4 Balance RF Performance and Structural Integrity?   In the realm of high-frequency printed circuit board design, engineers are often forced to make compromises. On one hand, RF performance demands low-loss materials with stable dielectric constants. On the other, mechanical reliability and cost-effectiveness call for conventional materials like FR-4. ...

• March 24. 2026

Why Choose ENEPIG Finish Over Other Surface Finishes for a Double-Layer Rogers PCB?     ENEPIG (Electroless Nickel Electroless Palladium Immersion Gold) is increasingly specified for high-performance PCBs, especially those combining RF materials like Rogers RO4003C with mixed-technology assemblies. In the double-layer board described earlier—featuring a 0.5mm RO4003C LoPro core, 1 o...