ARF1109Q4 is a 1.0 watt amplifier in a 4×4 QFN package for X-band applications. With 26 dB power gain, 29 dB of small-signal gain, 1 W saturated output power, and 40% power-added efficiency, the device is ideal for pulsed or CW radar applications, as well as telecommunications and test and measurement systems.
The part is pre matched to 50 Ω and external bias circuitry is required for operation. The device is ESD protected to simplify handling and assembly.

The part is RoHS* compliant and built with the latest manufacturing techniques to optimize for reliability and quality control.

Export from The Netherlands/EU, no licence.



  • Radar
  • Telecommunications
  • Test and Measurement


Min. Frequency (GHz): 8

Max. Frequency (GHz): 12

Gain (dB): 29

P1dB (dBm): 31

Psat (dBm): 31

Bias Voltage (V): -0.7/8

Bias Current (mA): 300

Package: 4 x 4 QFN

  • 8 to 12 GHz Amplifier
  • 30 dBm Saturated Output Power
  • 40% PAE
  • 26 dB Power Gain
  • 8 V, 300 mA Quiescent Bias
  • 4 mm × 4 mm QFN Package