4.1 Measurement Setup

Measurements were done using Clarke Hess 2505 gain phase analyzer which was controlled through an automated LabVIEW sequence. Measurements are done up to 2.4 MHz, which limits some of the gain margin measurement data, since the phase may not cross 0 degrees below 2.4 MHz. The EVM was powered with theQL355TP™ power supply and outputs were loaded withKeithley 2420™. All measurement results are an average of three consequent measurements. The used measurement setup is illustrated in Figure 1.

Figure 1. Measurement setup