Two tones

 

MC2-Technologies offers two tones measurements to analyse the lineary behaviour of two ports devices. The linearity bench shows a high dynamic to measure the components under small or large signal without modifying the architecture of the setup.The study can be done by varying the load impedance at the output of the device for a constant input or output power. Memory effects can be studied by modifying the cutt off frequency of the used bias tees and/or the impedance presented by the DC power supplies.

Two tones

  • Under microwave probes or in fixture
  • Bandwidth: 100MHz – 40GHz
  • Minium frequency distance: 100kHz
  • Measured vector values @ each harmonic: S11, S21, ZL, ZS
  • Measured scalar values: Pin, Pout, GP, GT, PAE, voltages, currents
IMR_vs_load

Example of two tones results for F1=24GHz and F2=24.01GHz measured on a PHEMT @ Pout=cst. Evolution of IMR3, IMR5, IMR7, GP, PAE, ID vs ZLoad