System Properties System PropertiesThe Properties dialog box consists of a navigation tree control on the left and a series of tabbed pages on the right. By selecting a system icon in the tree control, a set of tabs are displayed which expose the selected system’s user-configurable properties. There is exactly one icon for each system within a project.
Changing the Name of a System Page.
You can change the name of any system page by clicking on the name within the tree control once to select, and then again to begin “in-place” editing (not a fast double click). There are no restrictions imposed on the name of the system page.
Changing the Order of System Pages.
You can change the order of the System pages within the program. First select a System page within the tree control and then click the Up or Down button to move the page as appropriate.
The System Display tab establishes the appearance and user interface for the currently selected system page. By default, each new system inherits the Display settings of the Project to which it belongs (See Project Properties ); this inheritance can be disabled, if desired, by clearing the check box labeled Use Project Settings. When checked, the project display settings are indicated and cannot be modified. When the check box is cleared you may customize the system page as desired independent of the Project settings.
There are two list boxes shown on the Display tab: Display Parameters and Hidden Parameters. By moving items between the ‘Hidden parameters’ and the ‘Display parameters’, you can customize exactly what will be shown beneath each component on the system page. A parameter is moved by first selecting it within a list box, and then clicking the << or >> button as appropriate.
There are two independent sets of customizable parameters: input and output. Either set can be displayed by selecting the appropriate button within the Parameter Set group box.
The input parameter set consists of all component items that can be directly edited on a system page such as NF and Gain. Only those parameters in the Display Parameters list box will appear below the components on each page. These parameters will appear in the same order on the system page as they appear in the Display Parameters list box. The parameters can be reordered by selecting a parameter in the Display Parameters list box and clicking on the Up or Down buttons below the list box as appropriate.
The output parameter set consists of all non-editable component items, such as Pout, that can be displayed on a system page. Only those parameters in the Display Parameters list box will appear below the components on each page. These parameters will appear in the same order on the system page as they appear in the Display Parameters list box. The parameters can be reordered by selecting a parameter in the Display Parameters list box and clicking on the Up or Down buttons below the list box as appropriate. The output parameter set is described below:
| Gain+ | the cumulative gain (dB) from the from the beginning of the page through the current component. | |
| IP2_0 | the amount (dB) that the given block degrades the total cascaded second-order intermodulation performance. If the stage is made ideal the cascaded performance will improve by the amount indicated. | |
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IP3_0 |
the amount (dB) that the given block degrades the total cascaded third-order intermodulation performance. If the stage is made ideal the cascaded performance will improve by the amount indicated. | |
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NF_0
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the amount (dB) that the given block degrades the total cascaded noise performance. If the stage is made ideal the cascaded performance will improve by the amount indicated. | |
| NF+ | the cumulative NF_eff (dB) from the from the beginning of the page through the current component. | |
| NF_eff | the effective noise figure (dB) of the component. The noise figure the user enters for a component is relative to a 290° K standard input source. Thus, the user-supplied noise figure indicates how much the component will degrade a standard source; however, when other components precede the component in consideration, the noise presented to the component is not equivalent to the standard temperature. As such, the component's degradation is no longer the entered NF but some effective NF. | |
| No | the output noise power (dBm) of the component. | |
| Pcomp | the amount the component gain is compressed (dB). | |
| Pdc | the DC power consumed by the component. | |
| Po | the component’s output power (dBm). | |
| Vi | the component input voltage (rms). The voltage is derived from the component input power and input impedance. | |
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Vo |
the component output voltage (rms). The voltage is derived from the component output power and output impedance. |
The System Parameters tab allows the user to define the temperature of the selected system independent of the Project settings. By default, each new system page uses the temperature of the project to which it belongs (See Project Properties ). This behavior can be disabled by clearing the check box labeled Use Project Temperature. When the check box is cleared the System Temperature remains fixed at the indicated value during all analyses (See Graph Report for other considerations).
The system Notes/Title tab allows you to conveniently keep notes for each system page. Enter text in the Title field to provide a title for the system page during printing.
