2.4GHz Antenna - Adhesive (U.FL Connector)

This adhesive, omni-directional antenna is perfect for situations when you're trying to get a signal out from a transmitter that you've jammed down into an enclosure. Operating on the 2.4GHz band, it works great for WiFi, Bluetooth or ZigBee. Just connect the antenna using the attached U.FL connector and then peel and stick!

  • Type: Omni-Directional
  • Dual Frequency Range: 2300 to 3800MHz & 5150 to 5875MHz
  • Impedance: 50 Ohm
  • Maximum VSWR: 3
  • Typical Gain: 2(Max) dB
  • 41 x 30mm, 350mm cable

2.4GHz Antenna - Adhesive (U.FL Connector) Product Help and Resources

Three Quick Tips About Using U.FL

December 28, 2018

Quick tips regarding how to connect, protect, and disconnect U.FL connectors.


Looking for answers to technical questions?

We welcome your comments and suggestions below. However, if you are looking for solutions to technical questions please see our Technical Assistance page.

  • QMan56 / about 8 years ago / 1

    Is range a function of the antenna or technology? Curious to know if this increases my range at all, or is range still limited by whether or not I use WiFi, Bluetooth Zigbee etc. This is assuming LOS is the same for all technologies.

  • Jon Shuler / about 12 years ago / 2


    Now, can you please supply one for Cell?

  • Member #374338 / about 11 years ago / 1

    Do you have these for 900 MHz?

  • Patrickk / about 11 years ago / 1

    can i stick this onto your metal enclosure and expect it to work?

  • Evil Genius jr. / about 12 years ago / 1

    This should work with any 2.4Ghz device with a U.FL connector correct? I got to get one of these for my Spektrum remote control! The stock antenna is very annoying.

  • Member #344489 / about 12 years ago / 1

    Great Product ! thanks Sparkfun

Customer Reviews

4.2 out of 5

Based on 6 ratings:

Currently viewing all customer reviews.


Good quality sticky antenna.

Very useful to go along with WiFi Shield

I purchased this to use with the WiFi Shield (WRL-13287 ROHS). This simply snaps onto the connector on the wifi shield and you're good to go. Have not had any issues with Wifi connectivity, works great.

Tried to move XBee signal out of box, didn't work

I was using the Xbees with the 1mW antenna, and I was having some connectivity issues, I thought that by moving the antennas out of the box the problem would be solved, but instead I got zero connectivity. The documentation is horrible, so even though I tried to follow their mounting recommendations, I can't be sure I did it right.


Sorry to hear about the issues with the antenna! Have you contacted our technical support @ techsupport@sparkfun.com ? They're pretty good and helping to figure out confusing datasheets or documentation, they might be able to help you get it working properly.

Works well with a particle photon

These antennas work great for extending the range of a particle photon.

Works as expected! I will order it again with SparkFun

I received it on time. No issues. It works.

Works well, but don't expect miracles

I installed this on a Particle Photon I had in a location with poor WiFi reception in hopes that I would see a significant improvement. This antenna definitely helped, but poor reception is still poor reception, so you'll either want to find a longer cable to attach to this antenna (as the supplied cable is not terribly long), or just move your device somewhere where it can better reach the wireless network.

Also, you may have to press pretty hard to attach the U.FL connector; it "snaps" onto the mating connector on your device. Be gentle but firm, it may take a couple tries to get it lined up just right but you'll get it! Once it's attached it's a sturdy connection so it shouldn't fall off again.