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Ansoft Designer / Ansys Designer 在线帮助文档：

System Simulator >
System Component Models >
Nonlinear RF >
   Amplifier (AMP)       

Amplifier (AMP)

Notes

1. OIP3(dBm) = P1dB(dBm) + 10.64 dB.

2. Either OIP3 or P1dB can be specified, but not both.

3. If noise figure (NF) and the noise parameters (FMIN, MGO, PGO, and RN) are both specified, the noise parameters will be used for noise calculations.

4. For more accurate calculations, measured or circuit simulation data can be supplied using:

   • FLP (old format)

   • Extended NMF (Neutral Model Format)

   • S2P

   • CITI

FLP data files should have a ".flp" extension (e.g., AmpData.flp) and extended NMF files should have a ".nmf" extension (e.g., AmpData.nmf).

Measured data will override model parameters. For example, if the MS21 parameter is speci­fied and at the same time measured S-parameter data is referenced in an external data file, the calculations will be based on the measured S-parameter data.

5. Amplifier measured data can be one or a combination of the following:

   • AM-AM and AM-PM compression data

   • S, Y, Z, and ABCD parameters

   • NF

   • Noise parameters: FMIN, GOPT, RN

   • IP3

6. Measured data can be a function of several independent variables like input frequency (Tone1 or Freq), input power (P1), and temperature (TEMP).

7. Refer to the example project AmpDataFileExamples and the following external data files in the directory Examples\System:

   • The data file Compression_and_Sparam.flp is an example of AM-AM/AM-PM first harmonic compression data and S-parameters in FLP format. This data file is used by the design H1_Compression_and_Sparam_FLP. Note that the DEVICE parameter is always specified with FLP data files.

   • The data file Compression_and_Sparam.nmf is an example of AM-AM/AM-PM first harmonic compression data and S-parameters in extended NMF. This data file is used by the design H1_Compression_and_Sparam_NMF. Note that no DEVICE parameter is specified with NMF data files.

   • The data file CompressionVsFreq.nmf is an example of frequency-dependent first har­monic compression data using extended NMF. This data file is used by the design H1_Compression_vs_Freq.

   • The data file H1_and_H2_Compression.nmf is an example of first and second harmonic compression data specified in extended NMF. This data file is used by the design H1_H2_Compression.

   • The data file OIP3_and_Sparam.nmf is an example of specifying OIP3 and S-parame­ters versus input frequency using extended NMF. This data file is used by the design OIP3_vs_Freq.

   • The data file s2pn.s2p is an example of S2P data (including noise parameters). This data file is used by the design S2P_With_Noise.

   • The data file Sparam_and_NF.nmf is an example of S-parameters and noise figure ver­sus input frequency (Tone1) and temperature (TEMP) using extended NMF. This data file is used by the design Sparam_and_NF_vs_Freq_and_Temp.

The format for specifying data in extended NMF is:

Note that for the extended NMF data shown above:

   • A(string) in a data set is used to define the name of the column and describe the unit/for­mat of each data column.

      • A is the name

      • string = string1 UNIT:string2

               • string1 is optional and represents the format information. The format can assume one of the following values:

                REAL (default)

                RI (expects a 2-column data with no header required for the second imaginary column )

                MA (expects a 2-column data with no header required for the second angle col­umn )

                dB (expects a 2-column data with no header required for the second angle col­umn )

               • UNIT:string2 is optional and represents the unit information e.g., pF, dB, dBm, ...etc.

   • A data block must always start with BEGIN BLOCK and end with END BLOCK unless a data file has a single data block, in which case these two statements are not required.

   • A data set within a data block always starts with BEGIN DATA and ends with END.

   • Data sets within a given data block must be of the same type and have the same number of columns. The header of a data set is only required for the first data set and assumed optional for the remaining data sets. If a header is used with each data set, the same header must be used for all data sets within a given data block

   • Multiple data blocks supporting multiple data formats are allowed to be present in a single NMF data file with each data block identified by its corresponding BEGIN BLOCK and END BLOCK statements.

   • Multiple data blocks supporting the same data format are not allowed.

Netlist Form

AMP:Name n1 n2 [MS11=val] [MS12=val] . . . [T=val]

Netlist Example

AMP:1 12 15 MS21=-5dB NF=2.5 OIP3=17dBm

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