2. 4 Agreement of Computer Simulation Data with Experimental Measurements. 2.4.1 Comparison of Simulated Efficiency and Losses with Those Measured Experimentally. Figure 2—14 compares the data obtained by math modeling and computer simulation with that obtained experimentally. It will be noted that there are two kinds of computer simulation data. One kind uses the theoretical characteristics of an ideally designed Schottky barrier diode and the other uses the voltage drop across the diode as determined by DC measurements. The difference in these two measurements may not necessarily be at the Schottky barrier whose properties have been theoretically characterized but may be a voltage drop associated with the back ohmic contact which may not be purely ohmic but is partially a Schottky barrier. The circuit losses as determined by the computer in Figure 2-14 tend to check the experimentally measured losses at values of microwave power input of 1 watt or more as discussed in more detail in Section 2. 2.4. However, it is of interest that at the 3 00 milliwatt input level the computed losses are about 2. 5% higher than at high levels. If this computation is valid it could account for the failure to obtain a power balance at the 3 00 milliwatt level by about 3%. The circuit losses had been assumed constant at all power levels.
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