Abracon Releases New Low Pass LTCC Filters with Up to 53 dB Rejection in Sub-GHz & 2.4 GHz Bands

Why It Matters

The filters dramatically improve harmonic suppression and signal purity in space‑constrained RF designs, shortening FCC/ETSI certification cycles and accelerating time‑to‑market for connected devices.

Key Takeaways

• Up to 53 dB harmonic rejection in sub‑GHz band
• Insertion loss as low as 0.27 dB
• Footprint as small as 1 mm × 0.5 mm
• Supports FCC, ETSI, ARIB compliance
• Multilayer LTCC ensures high‑Q stability

Pulse Analysis

Low‑pass LTCC ceramic filters have become a cornerstone of modern RF design, especially as the IoT ecosystem pushes devices toward ever‑smaller footprints. By attenuating higher‑order harmonics while preserving the desired signal, these filters reduce electromagnetic interference and help manufacturers meet stringent global emission standards. The multilayer LTCC process offers high‑Q factors and temperature stability, making it ideal for dense PCB layouts where every millimeter counts.

Abracon’s new AFII‑LC series raises the bar with four models that combine ultra‑low insertion loss (down to 0.27 dB) and impressive out‑of‑band rejection—up to 47 dB at 2.45 GHz and 53 dB in the 868‑911 MHz range. Housed in 6‑SMD or 8‑SMD no‑lead packages as small as 1 mm × 0.5 mm, the filters enable designers to integrate robust harmonic suppression without sacrificing board real‑estate. The specifications align closely with FCC, ETSI, and ARIB certification requirements, allowing faster approval cycles for products ranging from smart sensors to consumer wearables.

The broader market impact is significant: as 5G, Wi‑Fi 6E, and emerging sub‑GHz LPWAN technologies proliferate, the demand for compact, high‑performance filtering solutions will intensify. Abracon’s AFII‑LC line positions the company to capture a share of this growth, offering a turnkey component that simplifies RF front‑end design and reduces time‑to‑revenue. Engineers seeking to future‑proof their products now have a reliable option that balances size, loss, and rejection—key factors in the competitive IoT landscape.