The ARF1108Q4 is a half-watt amplifier in a 4×4 QFN package for X-band applications. With 20 dB power gain, 0.5 W saturated output power, and 40% power-added efficiency at 10 GHz, the device is ideal for pulsed or CW phased array applications, as well as telecommunications, test and measurement systems.
The part is pre matched to 50 Ω and external bias circuitry is required for operation. The RF input has an inductor to ground for ESD protection.
The RF output is AC coupled. 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): 8.5

Max. Frequency (GHz): 12

Gain (dB): 23

P1dB (dBm): 27.5

Psat (dBm): 27.5

Bias Voltage (V): -0.6/8

Bias Current (mA): 170

Package: 4 x 4 QFN

Input Return Loss (dB): >10

Output Return Loss (dB): >10

  • 8.5 to 12 GHz Amplifier
  • 23 dB Small-signal Gain
  • 27 dBm Saturated Output Power
  • 40% PAE at 10 GHz
  • 8 V, 170 mA Quiescent Bias
  • 4 mm × 4 mm QFN Package