868/915 MHz i‑FlexPIFA™ Antennas

Overview
Our flexible PIFA (patented) antenna design delivers strong performance in challenging environments, providing you unmatched flexibility to solve your real-world antenna design challenges. Designed for rapid integration into space-constrained devices and housings, the flexible, adhesive backed antennas are available with MHF1 and MHF4L connector options.
Our 868/915 MHz i-FlexPIFA series is for sub-GHz applications like LoRaWAN and is designed with the radiating element facing outward when adhered to a plastic enclosure interior. This orientation gives more flexibility by granting different mounting options, like the underside of an enclosure, expanding the FlexPIFA family offerings. The 868/915 MHz i-FlexPIFA outperforms competitors’ solutions in these orientations.
PIFA antenna technology provides consistent performance across the 868 and 915 MHz ISM bands, always ensuring a solid and reliable connection.
- Coverage – 863-870MHz or 902-928MHz Operation
- Performance – Exceptional performance across operating frequency
- Versatile – Flexible, peel-and-stick adhesive backed antenna for a variety of IoT devices.
- Reliable – PIFA technology is easy to integrate into IoT devices and less likely to detune in proximity of metal or a human body.
- Quality – Designed and built to exacting specifications.
A patent application is pending for this product:
US Patent Application 20250118898
Buy Now
New Mounting Options
The i-FlexPIFA introduces new mounting options to our popular line of FlexPIFA internal antennas. The i-FlexPIFA is designed to radiate on the adhesive side, meaning OEMs can easily mount directly to the inside of the forward or top-facing part of their enclosure. The i-FlexPIFA is designed to give superior performance and reliability in this orientation and give OEMs another option for mounting wireless antennas inside their design.

Specifications
902-928 MHz
+0.9 @ 915 MHz
| Part Number | Price @ 1K | Cable Length (cm) | Connector | Frequency Range (Max) | Frequency Range (Min) | Gain (max) | VSWR |
|---|---|---|---|---|---|---|---|
EFG8555A3S-15MH4LBuy Options | N/A | 15 cm | MHF4L | 870 MHz | 863 MHz | 0.9 | <2.5:1 |
EFG8555A3S-15MHF1Buy Options | N/A | 15 cm | MHF1 (U.FL) | 870 MHz | 863 MHz | -0.4 | <2.5:1 |
EFG9020A3S-15MH4LBuy Options | N/A | 15 cm | MHF4L | 928 MHz | 902 MHz | 0.9 | <2.5:1 |
EFG9020A3S-15MHF1Buy Options | N/A | 15 cm | MHF1 (U.FL) | 928 MHz | 902 MHz | 0.9 | <2.5:1 |
Documentation
Browse Datasheets, Documentation, Product Briefs and Technical Drawings in our Support & Documentation Center.




/filters:background_color(white)/2024-10/EFG8555A-front-persective-2.png)
/filters:background_color(white)/2024-10/EFG9020A-front-persective-2.png)