To populate the Libraries node within the AWR Design Environment platform, you create XML files that adhere to rhw AWR schema described in “AWR's XML Schema Description”, and then link them into the application.
While understanding all of XML can be complicated, creating your own XML component libraries is quite simple. When creating XML component library files, you may find the following information helpful:
The Microsoft Internet Explorer 5.0 XML Validator reads and validates XML files against their schema.
Other vendors offer tools that allow for data entry and XML generation based on a schema file. The procedures described here are not the only means to generate XML formatted files. With an understanding of the XML format and adequate programming skills, you can generate XML libraries using other means as well.
The Microsoft "XML Developer Center" available through the Microsoft website contains a wealth of information about creating XML files.
The AWR schema description is found in
Library\libschema.xml in the AWR Design Environment platform
To create a new XML library:
Create a new
.xml file, or make a copy of one of the
files (other than
libschema.xml) provided in the
To define the library, see the allowed keywords and their required
hierarchy described in “AWR's XML Schema Description”. In addition, see the
required syntax shown in “Sample XML File Defining Resistors” and in the
.xml files in the
Begin with the
XML_COMPONENT_DATA top-level keyword.
Under this keyword, create one or more
FOLDER keywords to
contain component models.
FOLDER keyword, create one or more
COMPONENT keywords to define the actual component
COMPONENT keyword, create one or more
DATA keywords to define the actual component data. The
DataType attribute of the
specifies the type of component being defined, such as S-parameter data
sparameter), AWR built-in component model
awrmodel), or Touchstone netlist
tsmodel). When defining component data, note the
DataType=awrmodel, you must define
each parameter in the component model via the
PARAM keyword. Note that parameter values
are specified in MKS; you can use scaling suffixes such as pF to
scale values appropriately.
DataType=sparameter, you must
provide a reference to a standard Touchstone file that contains
the data; this file can be local or specified as a URL.
Reference the created XML in the AWR Design Environment platform. See “Using the AppDataUser Folders” for more information.
In the AWR Design Environment platform, click the Elements tab to display the Elements Browser. The new library is visible as a subnode of the Libraries node. Expand the library to view the folders that you defined in your XML library. Expand the folders to see the library's components.
A common requirement is to set a data file's NET parameter to 'read only' as shown in the following example.
<DATA DataType="sparameter"> sparam/r10.s2p <PARAM Name="NET" ReadOnly="yes"></PARAM> </DATA>
Another common scenario is to use an S-parameter file in the VSS libraries as shown in the following example.
<COMPONENT Name="LP0603A0902AL"> <MODEL>LIN_S</MODEL> <DESC>0603 Thin Film LPF</DESC> <PARTNUMBER>LP0603A0902AL</PARTNUMBER> <SYMBOL></SYMBOL> <HELP>http://www.avxcorp.com/docs/catalogs/lp0603.pdf</HELP> <CELL></CELL> <DATA DataType="awrmodel" Inline="yes"> <PARAM Name="NET"> LP0603A0902AL </PARAM> </DATA> <SUBFILE DataType="sparameter"> LPF/LP0603A0902AL.S2P </SUBFILE> </COMPONENT>
The following is a simple XML file that defines a resistor using various model types.
<?xml version="1.0"?> <!-- Schema definition; always use this exact line--> <XML_COMPONENT_DATA xmlns="urn:awr-lib-data"> <COPYRIGHT>This library is a copyright of AWR</COPYRIGHT> <SUMMARY>This library contains AWR Example Library models </SUMMARY> <!-- Define folder for components--> <FOLDER Name ="Resistors" Icon ="Resistor"> <!-- Begin component definition--> <COMPONENT Name="awr model" > <MODEL>REST</MODEL> <DESC>10 ohm resist 0.5 percent normal variation</DESC> <PARTNUMBER>r1</PARTNUMBER> <SYMBOL>Resistor@system.syf</SYMBOL> <HELP>HelpEX2/HelpRXAWR1.pdf</HELP> <CELL>r10artwork@RcellsGDS.gds</CELL> <!-- Example of defining an AWR built-in component model. Define each parameter via the PARAM keyword--> <DATA DataType="awrmodel" Inline="yes"> <PARAM Name="R" ReadOnly="yes"> 10 <TOLP>0.5</TOLP> <DIST> uniform </DIST> </PARAM> <PARAM Name="T" ReadOnly="yes"> 25 </PARAM> </DATA> </COMPONENT> <!-- Start component definition--> <COMPONENT Name="awr schematic"> <MODEL>SUBCKT</MODEL> <DESC>R1 Schematic</DESC> <PARTNUMBER>r1sc</PARTNUMBER> <SYMBOL>Resistor@system.syf</SYMBOL> <HELP>HelpEX2/HelpRXschem1.pdf</HELP> <CELL>r10artwork@RcellsGDS.gds</CELL> <!-- Example of defining a model via an AWR schematic. The schematic is stored relative to this xml file in schem/r10.sch--> <DATA DataType="awrschematic"> schem/r10.sch </DATA> </COMPONENT> <!-- Start component definition--> <COMPONENT Name="spice netlist"> <MODEL></MODEL> <DESC>r1 spice</DESC> <PARTNUMBER>r1sp</PARTNUMBER> <SYMBOL>Resistor@system.syf</SYMBOL> <HELP>HelpEX2/HelpRXSPICE1.pdf</HELP> <CELL>r10artwork@RcellsGDS.gds</CELL> <!-- Example of defining a model via a PSpice netlist. The netlist is stored relative to this xml file in spice/r10.cir--> <DATA DataType="pspicemodel"> spice/r10.cir </DATA> </COMPONENT> <!-- Start component definition--> <COMPONENT Name="sparameter file"> <MODEL>SUBCKT</MODEL> <DESC>R1 Sparameters</DESC> <PARTNUMBER>r1sp</PARTNUMBER> <SYMBOL>Resistor@system.syf</SYMBOL> <HELP>HelpEX2/HelpRXSparam1.pdf</HELP> <CELL>r10artwork@RcellsGDS.gds</CELL> <!-- Example of defining a model via s-parameter data. The s-parameter data is stored relative to this xml file in sparam/r10.s2p This component is setting the s-parameter name to be read only.-> <DATA DataType="sparameter"> sparam/r10.s2p <PARAM Name="NET" ReadOnly="yes"></PARAM> </DATA> </COMPONENT> </FOLDER>
The following sections describe the format needed in a Microsoft Excel file to generate a structurally-correct XML file using the Visual Basic script that Cadence provides. The details of the library are explained and the spreadsheet is demonstrated using an example. The Excel file and script are found at: XML_Library_Generation.zip.
The AWR Microwave Office example library is a very basic library implemented in four different ways. Figure A.1, “Circuit Element Tree for the AWR Resistors Library” shows the library structure. The library is just three resistors with values of 10, 20, and 30 ohms. The parts from each individual folder display in the lower window of the Elements Browser.
The Resistors Library is implemented using the AWR REST resistor model, as an AWR schematic file, as an S-parameter file, and as a SPICE netlist. All are equivalent models stored in different formats. The first version uses the AWR REST resistor model and assigns the proper component attributes to it (for example, resistance value, layout, and Help topic). The other three versions are external text files that are loaded into the AWR Design Environment software with appropriate component attributes assigned to them such as layout and Help topic.
To see the library:
AWR_Resistors_Lib directory (and its
contents) into the
xml/Circuit Elements folder
AWR_MWO_example.xml in the
xml/Circuit Elements folder.
Open a new project to see the AWR Resistors Library under the Libraries node under Circuit Elements.
This VSS example library is a simple Additive White Gaussian Noise Channel (AWGN) implemented in two different ways, and includes resistors to show how to add S-parameter files as a VSS model. Figure A.2, “System Block Element Tree for the AWR VSS Example” shows the library structure. In the two different AWGN examples, each include three elements with 0, 5, and 10 watts power, and 10, 20, and 30 ohm resistors.
The AWGN library was created using the AWR AWGN model and AWR system diagram file. All are equivalent models stored in different formats. The first version uses the AWR AWGN model and assigns the correct component properties to it such as power, powertype and insertion loss. The second one uses an AWR system diagram, where external files are imported into the project.
The resistors library is composed of S-parameter files created using "awrmodel" as the model type and the Cadence AWR LIN_S model as discussed in the following sections.
To view the library:
Place the contents of the
xml/System Blocks folder (choose
Open a new project to see the AWR VSS Example folder under the Libraries node under System Blocks.
The previous steps describe how to load example XML libraries into the AWR Design Environment
software. Also included with this exercise are the Excel spreadsheets used to
generate this library: (
AWR_Resistors.xls in the
AWR_Resistor_Lib folder and
AWR_VSS_example.xls in the
AWR_VSS_example folder). This file is explained in
Finally, there is an AWR Design Environment platform project file named
Excel_2_XML.emp. Loaded in this file is a Visual Basic
generate_XML_MWO. When this script runs it
asks for an Excel spreadsheet file, processes all of the information in the
Excel file, and generates an XML file. The resulting XML file has the same name
as the Excel spreadsheet except it has an
You can run the script on the
AWR_Resistors.xls file to
observe the result.
See “The Script Development Environment” for information on the scripting environment.
Figure A.3, “Blank Excel File for XML Library Generation” shows a generic Excel worksheet with no information set. The column headers help arrange the information.
There are two major sections to the spreadsheet. Cells A2 through F2 contain specific information for the folder of library parts represented by this worksheet in the Excel file (multiple worksheets are allowed in one Excel file). All of the parts set in an Excel file are made into one XML file, even if there are multiple worksheets. Figure A.4, “Excel File for the Resistors XML Library, Showing Multiple Worksheets” shows a section starting at Row 4 which contains the specific library parts, one part per line.
The text in cell A2 is the name of the folder used for the data for that
specific worksheet. These folder names are subfolders to any folder name
given in a higher-level XML file that references this file. For example, in
the top level XML file (
AWR_MWO_example.xml) for this
example, there is one line in the file that calls the
AWR_Resistors.xml file as follows:
The first section of this line sets the top level folder name, in this case "AWR Resistors Library". Verify in Figure A.1, “Circuit Element Tree for the AWR Resistors Library” that this is the name of the top level folder for this library. Note that the folder name listed in cell A2 is the name of the subsequent folder name. For example, Figure A.4, “Excel File for the Resistors XML Library, Showing Multiple Worksheets” shows the Excel worksheet for the AWR Model portion of the library. The folder name in cell A2 reads "AWR model" which is the name of the first subfolder for this library.
You can set different levels of folder names by using the "/"
character between folder names. For example, if you replace "AWR model" in
cell A2 of the spreadsheet shown in Figure A.4, “Excel File for the Resistors XML Library, Showing Multiple
level/test/AWR model, the XML tree displays as in
Figure A.5, “Example Library with Additional Folder Levels”.
The folder path in cell A2 does not have to be a unique path. You can specify the same folder name for two different Excel worksheets. In this case, all of the parts from both worksheets are placed in the same folder. You can also leave the folder path blank to indicate that all of the parts are located under the top level folder name.
The text in cell B2 specifies which XML model type is used for this
worksheet. This text must match one of the allowable XML model types. The
complete list of available model types is listed in the
libschema.xml file, which describes the XML format.
Some common file types include:
sparameter - an N port S-parameter file
awrnetlist - an AWR netlist file
awrmodel - a model internal to the AWR Design Environment
pspicemodel - a SPICE-like netlist for
translation into AWR netlist format
mdif - an MDIF file
awrschematic - an AWR schematic file
emstructure - an AWR EM structure file
All of these types reference external files except for awrmodel. When the awrmodel XML model is used, you must specify in column B (the Model column) of the data section which model is used.
For VSS libraries, you only use the awrmodel and awrschematic types.
This cell is used when making parameterized xml, and it must be set for each folder that is being parameterized. This text is shown for each parameterized block as the parameter name on the schematic and in the Element Options dialog box. See “Parameterized XML” for more information.
This cell is used when making parameterized xml. You specify the column from which you use the text to describe parameterization. See “Parameterized XML” for more information.
This cell is used when making parameterized xml. If you are parameterizing through hierarchies, this cell is used. See “Parameterized XML” for more information.
The text in this cell specifies which icon you want for the folder path specified in cell A2. Leaving this blank sets the default icon for the folder. To demonstrate, the example library was changed to use different icons as shown in Figure A.6, “Example Library Using Different Icons”. This isn't practical and is for demonstration purposes only.
The icon name must come from a list of pre-defined icon names included in the following section.
The following list includes many of the common AWR Microwave Office icons:
Baluns, Bends, BJT, Capacitor, Coaxial, Coplanar, Coupled Inductor, Coupled Lines, Diode, FET, Filters: Bandpass/Bandstop/Highpass/Lowpass, Inductor, Lines, Lumped Element, Phase, Ports, PwrDivider, Resistor, Resonators, Signal, Substrates, Transformer, Transmission Lines, Waveguide.
The following list includes many of the common AWR VSS icons:
Adders, Amplifiers, Analog-Digital, Bandpass, Bandstop, Behavioral, BER, Binary, BPSK, Channel Encoding, Channels, Coding/Mapping, Constants, Converters, Data Files, Data Type, dB, Decoders, Demodulators, De-multiplexers, Encoders, File Based, Files, Filters, FSK, General Receiver, General Receivers, GMSK, Highpass, Interleaving, Legacy, Logic, Lowpass, Mag/Phase, Math Functions, Math Tools, Meters, Modulated, Signals, Modulation, Modulators, MPSK, MSK, Multiplexers, Multiplexing, Multipliers, Network Analyzers, Noise, OQPSK, PAM, Pi/4 QPSK, Ports, Primitives, Pulse, QAM, QPSK, Random, Receivers, RF Blocks, Serial-Parallel, Signal Processing, Signal Processors, Simulation Based, Source Encoding, Sources, Tracking/Feedback, Transcendental, Transmitters, Waveforms.
Custom icons are currently not supported in the library.
For a full list of the available icons, see “All Available XML Icons”.
The following sections provide information about entering individual models for each particular library, starting on row 4 of the spreadsheet. One model per line is added to the library. As shown in Figure A.7, “AWR Microwave Office Example Library Worksheet Showing Columns A, B, and C” you must specify an "End" tag in column A after the last entry. The script terminates if it cannot find this tag. The following sections describe the contents of each column in the data section of the spreadsheet.
This is the model component section of the library part. The text in this column is the first-level description for the part. When you select a library folder from the XML folder list, the information in column A displays in the lower window of the Elements Browser for each part. For example, Figure A.8, “Example Showing Where Data in Column A Displays in the Library” shows the information in column A for the AWR Model folder of the AWR Resistors Library. Note the text entered in column A. This figure also shows the elements available in the AWR Model folder of the library. Note that the text displayed for each model matches the text in Column A of the spreadsheet. Verify that the other models match with the library in the example project and example spreadsheet provided.
There are different ways to view the parts in a folder (for example, as large icons or small icons). To see the view options, right-click in the lower window of the Elements Browser. Figure A.8, “Example Showing Where Data in Column A Displays in the Library” shows the large icon view.
This column specifies the model in the AWR Design Environment platform to use for the library part. The entries in this column are only necessary if the awrmodel format is specified in cell B2 or if you are making parameterized XML/subcircuit. For all other formats, leave this column blank. These names must match model names in the AWR Design Environment platform. In Figure A.7, “AWR Microwave Office Example Library Worksheet Showing Columns A, B, and C” column B shows that the REST (resistance with temperature) model is used for these library parts. In Figure A.9, “Element Options Dialog Box for REST Model”, one of these library parts is placed in a schematic and the Element Options dialog box is open.
The model name to use in the Excel file is found on the title bar of the dialog box. It is the capitalized name after the "Element Options:" text.
The text in column C is a more detailed description for each part. When you choose a library from the XML folder list, this information displays in the lower window of the Elements Browser when the view is set to Figure A.7, “AWR Microwave Office Example Library Worksheet Showing Columns A, B, and C” shows the information in column C for the AWR Model version of the resistor library. Figure A.10, “Example of Column C Description Display when Details are Shown” shows the elements available in the AWR Model folder of the library with their descriptions displayed. The description for each model matches the text in Column C of the spreadsheet. Verify the other models match with the library in the AWR Design Environment platform and example spreadsheet provided.. For example,
The text in column D is the part number for each model. Each element in a schematic or system diagram (for example a model, S-parameter file, netlist, or EM structure) has a setting for a part number which is useful for a Bill of Materials (BOM) generation for a design or any other user-defined purpose. The Element Options dialog box in Figure A.9, “Element Options Dialog Box for REST Model” shows the Part Number at the bottom middle. Figure A.11, “Example Library Worksheet Displaying Columns D, E, and F” shows column D for the part number. Note that the part number specified in Figure A.9, “Element Options Dialog Box for REST Model” matches the text in cell D4 of the example spreadsheet.
In the AWR Design Environment platform, you can assign any symbol to any model, including external files such as S-parameter files and netlists. Outside of XML, this assignment is made in the Element Options dialog box on the Symbol tab, as shown in Figure A.12, “Element Options Dialog Box Showing Symbol Selection”.
You can use any symbol from the XML library. Every model has a default setting, so this column can be blank. The only requirement is that the number of pins on the symbol must match the number of nodes in the model. It is not possible to assign a 3-pin FET symbol to a resistor model. The best way to determine what to specify in column D is to look at the Element Options dialog box Symbol tab, find the symbol you want, and then copy the name of the symbol. This setting is most commonly used to assign a more meaningful symbol to parts that are external files.
The AWR Design Environment platform also allows you to create custom symbols (choose
$AWR/symbols directory. Web-based XML libraries
cannot currently download custom symbol files.
XML libraries can call Help specific to the element library. The Element Options dialog box contains an Figure A.12, “Element Options Dialog Box Showing Symbol Selection”). Click to open the Help location the vendor specifies, either an HTML URL or an absolute or relative file path. An absolute path contains the entire path to the file, while a relative path to the location of the XML file being read is defined in relation to the current directory.button and a button. Click to open the Cadence AWR Help topic for the model from which you opened the dialog box (for example, the REST model in
In the example library, the Help files are Microsoft Word documents
located in the
\HelpEX2 folder for the AWR Microwave Office example
\Help folder for the AWR VSS example. In Figure A.11, “Example Library Worksheet Displaying Columns D, E, and F”, the settings in column F are relative paths to the
Help files for these parts.
An HTML URL is a more flexible option since website information is easily updated. Web-based Help files can be changed instantly if necessary, and require no changes by library users. Local files require each user to make changes if a Help file changes.
Libraries should include layout cells for their parts so AWR Microwave Office library users have the correct layout cell for each part.
Without XML, you select layout cells on the Layout tab of the Element Options dialog box, as shown in Figure A.13, “Element Options Dialog Box Showing the Layout Setting”. You can assign layout cells that are imported to the Artwork Cell Editor.
The syntax for this cell entry is <cellname>@<gdsfilename>. When an XML library part is placed in a schematic, if there is a layout cell specified for that part, the AWR Design Environment software loads the <gdsfilename> GDSII file into the Artwork Cell Editor if it is not already loaded. The GDSII file must be located in the same folder as the XML file that contains this part. The artwork cell specified in <cellname> is assigned as the layout cell for the part.
Figure A.13, “Element Options Dialog Box Showing the Layout Setting” shows the GDSII file used in the example library loaded into the AWR Artwork Cell Editor.
Notice that under Cell Libraries the GDSII library
name displays next to the GDS node icon. Next to the library name is the
full path to the loaded GDSII file (truncated in this view). Note that the
library name Rcells is different than the GDSII file
RcellsGDS.gds. A list of all cells in the library
displays under the library name.
Figure A.15, “AWR Microwave Office Example Library Worksheet Showing Columns G, H, and I” shows how the layout cells are set by listing the cell name and the GDSII file name in the Excel file for this example. Note that the GDSII library name is not used in this syntax.
In the AWR Microwave Office program, a schematic model and a layout cell are associated
via cell ports. Cell ports are drawing objects in a layout cell that tell
the system how to connect the layout cell to other drawing objects. The cell
ports also have numbers which correspond to the node numbers of the
schematic element. Although not necessary, it is a good idea to create your
GDSII cells so that the number of cell ports matches the number of nodes in
the model. If a GDSII file for the library package is not available, you can
create it in the AWR Microwave Office program using the Artwork Cell Editor (see AWR Microwave Office Layout Guide for more information).
Cadence provides artwork cells in the
folder for some standard packages to help you get started.
Model parameter (or file) information is specified starting in column H. Two groups of model types determine the entries in column H; one group is awrmodel and parameterized subcircuit and the other group consists of all other model types. For all other (non-awrmodel) models, the only model specification is a full or relative path to a data file (for example, a schematic, netlist, or S-parameter) to import into the AWR Design Environment platform, only in column H. Note that S-parameters used in the AWR VSS; program are a special case that is discussed below.
For the awrmodel type, one column is used for each model parameter that is set to a value other than default. This might be only one column for a simple model such as a resistor, or over 100 columns for models such as the BSIM FET model.
For the awrmodel specification, one column is used for each model parameter. The model parameter name is specified in the header column (row 3) and the value is specified in the proper row for that part. The parameter name must match the model parameter name in the AWR Design Environment platform exactly. You can use every column starting with column H, without skipping columns. The script to generate the XML looks at row 3 until it finds a cell that is empty; this is how it determines how many parameters there are.
In the example library for the awrmodel resistors, the temperature resistor model parameters are shown in Figure A.9, “Element Options Dialog Box for REST Model” for one of these parts. Notice that this model has R and T parameters. In the Excel spreadsheet for the awrmodel resistors shown in Figure A.15, “AWR Microwave Office Example Library Worksheet Showing Columns G, H, and I”, these model parameters are listed in row 3 of the spreadsheet, and then the assigned values for each model are listed in that parameter's column.
NOTE: If you add an asterisk character (*) to the right of the parameter name (R*), the parameter values under that column cannot be modified in the AWR Design Environment platform. This option is useful when you want to make sure some parameter values of your model remain unchanged.
When entering model parameters, enter the values in base units. For example, enter capacitance in farads, inductance in henries, and current in amps. When a library part is used, these values are converted to the units set in the project.
Notice that there is additional information in the R parameter column. Model parts often have statistical variation to use for yield analysis (also called Monte Carlo analysis). A special syntax for each parameter setting allows statistics to be set for the XML part. To define a parameter for statistical variation, use the following syntax:
<NV> s( <SV><VT>,<ST>)
<NV> is the nominal value for the parameter in
<SV> is the statistical variation either in
absolute number in base units or percent,
the variation type:
p for percent or
<ST> specifies the statistic type:
u for uniform,
n for normal,
ln for log normal,
nc for normal
nt for normal tolerance.
In Figure A.15, “AWR Microwave Office Example Library Worksheet Showing Columns G, H, and I”, the first resistor in the library's awrmodel folder has a setting of 10 s(0.5p,u). The nominal value is 10 ohms, and the statistics are 0.5 percent with a uniform distribution. Figure A.9, “Element Options Dialog Box for REST Model” shows the nominal value of R set to 10 ohms. Figure A.16, “Element Options Dialog Box Showing Statistical Settings” shows the statistical settings for this part that display when you click the button on the Parameters tab toolbar, matching what is in the spreadsheet.
For no statistics, just enter the nominal value as shown for the T parameter in Figure A.15, “AWR Microwave Office Example Library Worksheet Showing Columns G, H, and I”
There is one special case for VSS libraries. When you want to use an S-parameter file as the model in a VSS simulation, you need to create a library of the awrmodel type using LIN_S as the model, and then specify the path to the S-parameter being used. In this case, the library must load this S-parameter data file also. The script to convert the Excel file to XML can accomplish this. Figure A.17, “Example Library for VSS Using S-parameter Files” shows the Excel data for the VSS library in the example that uses S-parameters as the model.
Figure A.18, “AWR Microwave Office Example Showing Columns F, G, and H for the S-parameters” shows the Excel library for the S-parameter representation of the AWR Resistors Library for the AWR Microwave Office program. In this library, the S-parameter data is in a subfolder named sparam. The column header in cell H3 is DATA. For non-awrmodel parts this header can be named anything.
The Excel library for the schematic representation of this model is illustrated in Figure A.19, “AWR Microwave Office Example Library Showing Extra Columns for Subfiles”. For this library, the schematics are in a subfolder named schem. The column header in cell H3 is DATA, but you can name this header anything. If the schematics in column H have subfiles like S-parameters, you should include each subfile in the columns next to column H in the same row as that schematic. You should name the column headers according to the subfiles types: sparameter, awrschematic, awrnetlist, pspicemodel and mdif. For example, if a certain schematic contains three subfiles where two of them are S-parameter files and the other is a schematic, the subfiles for the S-parameters may be included in columns I and J and the subfile for the schematic may be included in column K. There is no preference for which subfile is listed first in the next column after the schematic in column H.
For the AWR VSS program, the only type used other than the awrmodel type is
the awrschematic type. When using this type, you reference system diagrams
exported from Cadence AWR that have a
extension. Figure A.20, “VSS Example Library Showing AWRSCHEMATIC Type for VSS.” shows the Excel file for the
example VSS library using the awrschematic type.
The following lines of an XML file have information about any copyright or summary information. The first three lines of the XML file for this example are shown in Figure A.21, “First Three Lines of the "AWR_Resistors.xml" File”
Figure A.21. First Three Lines of the "AWR_Resistors.xml" File
<COPYRIGHT>This library copyright of AWR</COPYRIGHT> <SUMMARY>This library contains an AWR Example Library models</SUMMARY>
You can change these settings by inserting a special worksheet as shown in Figure A.22, “Excel Entries to Set Copyright, Summary and "libschema.xml" Location”.
The VB script only uses this information if this worksheet is the first worksheet in the Excel file, so its tab is on the far left. The word "copyright" must appear in cell B2 for this special format to be recognized:
Starting with the version 8.0 AWR Design Environment platform, instead of specifying the
libschema.xml you include the following line in
the XML regardless of where the XML file is:
The text in cell A3 is copied between the COPYRIGHT tags in the XML file, and the text in cell A4 is copied between the SUMMARY tags in the XML file. This special worksheet is included in the example library.
The following is a complete list of all AWR Microwave Office program icons:
AC, Active, Baluns, Bandpass, Bandstop, Bends, BJT, Cap, Capacitor, Coaxial, Components, Coplanar, Coupled Inductor, Coupled Lines, CPW, Data, DC, Dependent, Device Models, Diode, Electrical, EM Models, FET, Filters, Harmonic Balance, Highpass, ICell, Ideal, Inductor, Interconnects, IV, Junctions, Library, Linear, Linear Devices, Lines, Lowpass, Lumped Element, MeasDevice, Meters, Microstrip, Miscellaneous, Negate, Noise, Noise Models, Nonlinear, NonReciprocal, Passive, Phase, Physical, Ports, PRE_RELEASE, Probes, PwrDivider, Resistor, Resonators, RF Elements, Signal, Signals, Signals (Tone 1), Signals (Tone 2), Sources, SPICE, Stripline, Subcircuit, Substrates, Suspended Stripline, Transformer, Transmission Lines, Universal, UPDATED, User Defined, Volterra, Volterra Devices, and Waveguide.
The following is a complete list of all VSS icons:
802.11, 802.11a, Adders, Amplifiers, Analog, Analog Devices, Analog-Digital, Angle, Antennas, Attenuators, Bandpass, Bandstop, Behavioral, BER, Binary, BPSK, CDMA-3G, Channel Encoding, Channels, Coding/Mapping, Combiners/Splitters, Communication Standards, Complex Envelope, Constants, Converters, Couplers, Data Files, Data Type, dB, Decision, Decoders, Demodulators, De-multiplexers, Detectors, Digital Baseband, Dividers, Encoders, File Based, Files, Filters, Fixed Point, Freq. Multipliers, FSK, General Receivers, GMSK, GSM/EDGE, Highpass, Impedance Mismatch, Interleaving, IS-95, Legacy, Linear Filters, Logic, Lowpass, LTE, Mag/Phase, Math Functions, Math Tools, Matrix, Meters, Mixers, Modulated Signals, Modulation, Modulators, MPSK, MSK, Multiplexers, Multiplexing, Multipliers, National Instruments, Network Analyzers, Network Blocks, Noise, OFDM, OQPSK, PAM, Passive, Phase, Phase Noise, Pi/4 QPSK, PLL, Ports, PRE_RELEASE, Primitives, Pulse, QAM, QPSK, Random, Receivers, RF, RF Blocks, Rohde-Schwarz, Serial-Parallel, Signal Processing, Signal Processors, Simulation Based, Simulation Control, Source Encoding, Sources, Switches, Testing, TESTONLY, Tracking/Feedback, Transcendental, Transient, Transmitters, VCOs, Waveforms, and WiMAX Mobile.