868/915 MHz i‑FlexPIFA™ Antennas

Recommended for New Design (RND)


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 @ 868 MHz
+0.9 @ 915 MHz
Antenna Connector Type
Antenna Type
Inverted Flexible Planar F-Type
Impedance (Ohm)
Operating Temp (Max) (°C)
+85 °C
Operating Temp (Min) (°C)
-40 °C
Pattern Type
Part NumberCable Length (cm)ConnectorFrequency Range (Max)Frequency Range (Min)Gain (max)VSWR
EFG8555A3S-15MHF1Buy Now
15 MHF1 (U.FL) 870 MHz863 MHz-0.4 <2.5:1
EFG8555A3S-15MH4LBuy Now
15 MHF4L 870 MHz863 MHz0.9 <2.5:1
EFG9020A3S-15MHF1Buy Now
15 MHF1 (U.FL) 928 MHz902 MHz0.9 <2.5:1
EFG9020A3S-15MH4LBuy Now
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
Datasheet - i-FlexPIFA - 868 MHz All Datasheet 11/09/2023
Datasheet - i-FlexPIFA - 915 MHz All Datasheet 11/09/2023

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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Buy Now

Distributor Part In Stock Region Buy
Mouser EFG8555A3S-15MH4L 234 North America Buy Now
Farnell EFG8555A3S-15MH4L 185 EMEA Buy Now
Mouser EFG8555A3S-15MHF1 239 North America Buy Now
Farnell EFG8555A3S-15MHF1 195 EMEA Buy Now
Mouser EFG9020A3S-15MH4L 246 North America Buy Now
Farnell EFG9020A3S-15MH4L 185 EMEA Buy Now
Mouser EFG9020A3S-15MHF1 240 North America Buy Now
Farnell EFG9020A3S-15MHF1 200 EMEA Buy Now


Distributor Phone Number Region Website
Arrow Electronics 1-855-326-4757
+44 2039 365486
APAC, North America, South America, EMEA Website
Avnet 1-480-643-2000
+44 1628 512900
APAC, North America, South America, EMEA Website
Braemac Australia, New Zealand, South East Asia +61 2 9550 6600
+64 9 477 2148
APAC Website
Cal-Chip Connect 1-215-942-8900
North America Website
DigiKey 1-800-344-4539
North America, South America, APAC, EMEA Website
EBV Elektronik EMEA Website
Farlink Technology China, Hong Kong +86 13266922199
APAC Website
Farnell 1-800-936-198
+44 3447 11 11 22
EMEA Website
Future Electronics 1-800-675-1619
North America, South America, APAC, EMEA Website
Glyn +49-6126-590-0
EMEA Website
Hy-Line Germany Only +49 89 614 503 0
EMEA Website
Jetronic China, Hong Kong and Taiwan 852-27636806 
APAC Website
Laird Connectivity 1-847-839-6925
+44 1628 858941
North America, South America, APAC, EMEA Website
M2M Germany +49-6081-587386-0
EMEA Website
Martinsson +46 8 7440300
EMEA Website
McCoy South East Asia +65 6515 2988
APAC Website
Mouser 1-800-346-6873
+44 1494 427500
North America, South America, APAC, EMEA Website
RS Components +852-2421-9898
+44 3457-201201
North America, South America, APAC, EMEA Website
Ryoyo Japan +81-3-3543-7711
APAC Website
Solsta UK Only +44 (0) 1527 830800
EMEA Website
Supreme Components International India, South East Asia +65 6848-1178
APAC Website
Symmetry Electronics 1-866-506-8829
North America Website
Tekdis Australia and New Zealand +61 3 8669 1210
APAC Website
Telsys +972 3 7657666
EMEA Website
WPG +44 1628 958460
EMEA Website