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The RFSWITCH01 is an MLAB module featuring two PE4259 RF switches. Designed for radio transceivers with separate input and output, it provides MIMO 2x2 support and is typically equipped for 433MHz and 868MHz frequencies.


This is an open-source hardware design, one of the modules from the MLAB labolatory system.

RFSWITCH01 - RF switch


The RFSWITCH01 is an MLAB module that incorporates a pair of RF switches, specifically the PE4259. from Peregrine Semiconductor. This module is designed to connect to a radio transceiver that has separate radio input and output. Thanks to the use of two switches, the module allows connect two antennas. The individual switches are controlled by a simple digital input signal. With RFSWITCH01, a transceiver can work with support of MIMO 2x2. The module is typically assembled for frequencies of 433MHz and 868MHz.

Top view on RFSWITCH01A

Key Features and Specifications

  • Contains two PE4259 RF switches from Peregrine Semiconductor
  • Operating voltage: 1.8V to 3.3V
  • Maximum operating frequency: 3GHz
  • Low insertion loss (0.35 dB @ 1 Ghz, 0.5 dB @ 2 GHz)
  • Operating temperature range: -40°C to 85°C
  • Four MCX connectors for connection with the radio and two antennas
  • Includes a SAW filter and LNA amplifier at the transceiver input


The RFSWITCH01 module can be used in a variety of applications where MIMO 2x2 support is required for a radio transceiver. This includes, but is not limited to:

  • Drone communication systems
  • Wireless data transmission systems
  • Radio communication systems in robotics

More Information

For more detailed information about the PE4259 RF switch, please refer to the datasheet.