## Load Meas Tabsheet

The Load Meas tabsheet (Fig. 4) contains the simulated results for the load reflection coefficient magnitude measurement as obtained by using either ideal or non-ideal couplers. The displayed uncertainties are solely due to the finite directivity of the couplers. Both couplers in consideration (one for sensing the incident power, one for the reflected power) are assumed identical; their parameters are defined in the Measurement Couplers group box.

Fig. 4. Load Meas tabsheet.

True Value

The True Value is the copy of the actual load reflection coefficient magnitude from the Magnitude edit box in the Load Reflection group box. This value would be measured if the couplers were ideal.

Both the true value and the uncertainty bounds can be displayed as a linear magnitude (Mag), a value in dB, or as VSWR. To change the format, click a button in the Unit radio-box.

Min Meas, Max Meas

The Min Meas and Max Meas boxes show the uncertainty bounds of the measured reflection coefficient. The uncertainty is caused by finite directivity of the couplers.

Min Error %, Max Error %

The values displayed in the Min Error %, Max Error % boxes are deviations of the Min Meas and Max Meas from True Value. Since the computation of such deviations for the dB and VSWR format has little meaning, the values are only shown for the Mag format, and are multiplied by 100.