Front End Subsystems

Analogue SDR modules for band shifting and power boosting of WiFi and LTE modems

Doodle Labs’ family of Band Shifters are analogue SDR modules to enable LTE and Wi-Fi modems to operate on a different frequency bands. They provide flexibility to system integrators looking to deploy their existing wireless modems at special frequency bands to expand the market opportunities.

The Band Shifters are in-line module placed between the radio modem and the antenna. Doodle Labs Prism® frequency shifting technology helps achieve the use of state-of-the-art COFDM/MIMO performance in any frequency band. Additionally, the Band Shifters amplify the Tx power and Rx gain to increase the wireless range. A large family of form factor compatibile modules in the 100 MHz – 6 GHz range means a simple swap of the Band Shifter module to switch to a different band to meet customer’s requirements in any market or country.

Key Features
  • High purity and low EVM signal distortion to support 64QAM RF signals
  • Achieve Long range (20+ km) with up to 1W (30 dBm) Tx power
  • LNA to increase Rx sensitivity
  • Low Noise Figure
  • Fast and automatic switching of Tx/Rx direction switching to support TDD operation
  • Up to 40 MHz bandwidth with flat gain
  • Very small size, weight, and power (SWaP) for mobile applications
  • Available in 100 MHz – 6 GHz frequency range in form factor compatible models
  • Wide DC input voltage range for ease of integration
  • Rugged construction, Industrial temperature range (-40C to +85C)
  • Field proven and deployed in defense applications where failure is not an option
  • COTS – Commercial off the Shelf
Model Index

The table below lists off-the-shelf available models. We are able to configure the WiFi-FES to meet the project-specific frequency requirements up to 6000 MHz. Please contact us with your project requirements.

ANT Freq
RF Freq
DescriptionModel No.
902-928  MHz2.4 GHz WiFi

License free 915 MHz band in North, South and Latin Americas, Australia

  • 1×1 stream, 27 dBm, Extended temp, Rugged
  • 2×2 MIMO, 30 dBm, Extended temp, Rugged
3400-3800  MHz5.6 GHz WiFi

Communication band in Europe, Canada

  • 1×1 stream, 24 dBm, Extended temp, Rugged
  • 2×2 MIMO, 27 dBm, Extended temp, Rugged
Case Studies