21.11.2014 Views

Sonnet User's Guide - Sonnet Software

Sonnet User's Guide - Sonnet Software

Sonnet User's Guide - Sonnet Software

SHOW MORE
SHOW LESS

Create successful ePaper yourself

Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.

Chapter 13 Netlist Project Analysis<br />

Netlist Project Analyses<br />

The sequence of steps for a netlist project analysis may be summarized as follows:<br />

1 You input the netlist using the project editor in netlist mode. The project<br />

editor allows you to create and edit networks, network elements, project<br />

elements, modeled elements, and data file elements in your netlist. You<br />

also input the analysis controls which may include defining parameters<br />

in the netlist.<br />

2 Em reads the netlist project which contains circuit and analysis control<br />

information. This includes S-, Y- and Z-parameter data files, modeled<br />

elements, geometry subprojects (project elements) and network elements.<br />

3 Em uses the analysis controls input as part of the netlist project to run<br />

each electromagnetic analysis invoked by the network file. It is possible<br />

to configure the analysis controls in such a way that geometry subprojects<br />

are analyzed using their own analysis controls. Netlist subprojects<br />

always inherit their analysis controls from the present netlist.<br />

4 Once the analysis of geometry subprojects is complete, em performs the<br />

circuit analysis specified in the netlist.<br />

5 Em combines the electromagnetic results with the circuit results to<br />

obtain the desired output results.<br />

Note that the above sequence of steps is generalized for analyses which include<br />

both electromagnetic and circuit analysis. In cases where the overall analysis is restricted<br />

to either electromagnetic analysis or circuit analysis, some of the steps are<br />

omitted.<br />

Creating a Netlist<br />

You create a netlist using the project editor. To create a new netlist, select File ⇒<br />

New Netlist from the main menu of the project editor. The project editor tool bar<br />

and menus change for the netlist editor, to allow you to add elements and networks<br />

to your netlist.<br />

The initial netlist file contains a default two-port network named Net. The last network<br />

in the netlist is the main network. The main network is the network whose<br />

solution you are solving for in this netlist. When you analyze the netlist, the response<br />

data produced in the analysis is for the main network.<br />

199

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!