868/915 MHz i‑FlexPIFA™ Antennas

Under Development


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.

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.

868-915-i-flexPIFA-example exploded-pole-radiation1.png


863-870 MHz
902-928 MHz
Dimension (Length - mm)
Dimension (Width - mm)
Dimension (Height - mm)
6.2 mm
Gain (max)
-0.4 @ 815 MHz
+1.9 @ 915 MHz
Antenna Connector Type
Antenna Type
Inverted Flexible Planar F-Type
Impedance (Ohm)
Operating Temp (Max) (°C)
Operating Temp (Min) (°C)
Pattern Type
Part NumberCable Length (cm)ConnectorFrequency Range (Max)Frequency Range (Min)Gain (max)VSWR
15 MHF1 (U.FL) 870 MHz863 MHz-0.4 <2.5:1
15 MHF4L 870 MHz863 MHz0.9 <2.5:1
15 MHF1 (U.FL) 928 MHz902 MHz0.9 <2.5:1
15 MHF4L 928 MHz902 MHz0.9 <2.5:1


Name Part Type Last Updated
Product Brief - 868/915 MHz i-FlexPIFA All Product Brief 02/08/2023
3D Models - 868-915 MHz i-FlexPIFA (.STEP Files) All Technical Drawings 02/09/2023


What is Laird Connectivity's product lifecycle EOL and PCN policy?

Laird Connectivity is committed to the long-term supply of all its standard embedded wireless modules and packaged products. Laird Connectivity’s products are specifically designed to meet the needs of the industrial and medical markets, which typically require 7 – 10 years product lifecycle. Although Laird Connectivity can’t guarantee that a component used in our products will not be obsoleted and cannot be reasonably substituted, Laird Connectivity can assure customers we will continue to sell our product when we have customer demand and can obtain the necessary components to build our products.

View our full policy here. 

Resource Center

  • Do You Know Your PIFAs?

    Do You Know Your PIFAs?

    As technology continues to evolve, RF systems and wireless connectivity become more complicated. Industries expect higher data rates, lower latency, greater reliability, and performance. In the midst...

    Read White Paper

  • What is a PIFA?

    What is a PIFA?

    A planar inverted F-type antenna (PIFA is a uniquely engineered antenna design that includes a built-in ground plane and resists detuning when placed near surfaces, such as metal. In this video Paul...

    Watch Video

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Alpha Micro UK Only +44 1256-851770
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