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ampdata Class Reference

A subclass of sdata with extra functionality specific to amplifiers. More...

#include <ampdata.h>

Inheritance diagram for ampdata::

List of all members.

Public Methods
	ampdata ()
	Construct a new ampdata instance. More...
	ampdata (const sdata &sd)
	Construct ampdata from an sdata object, checking that size()=2. More...
complex	gamma_opt ()
double	t_min ()
double	F_min ()
double	Rn ()
	Return the noise resistance normalized to internal z_norm. More...
double	noise_measure ()
complex	delta ()
double	k ()
complex	center (int p)
	Noise stability circle center. More...
double	radius (int p)
	Noise stability circle radius. More...
int	unconditionally_stable ()

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Detailed Description

A subclass of sdata with extra functionality specific to amplifiers.

Class ampdata must have its size = 2. It is created by copying an sdata instance.

Definition at line 58 of file ampdata.h.

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Constructor & Destructor Documentation

ampdata::ampdata ( ) [inline]

Construct a new ampdata instance. Definition at line 63 of file ampdata.h.

ampdata::ampdata ( const sdata & sd )

Construct ampdata from an sdata object, checking that size()=2. Definition at line 40 of file ampdata.cc.

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Member Function Documentation

double ampdata::F_min ( )

Returns: the minimum noise figure in standard units. Definition at line 126 of file ampdata.cc.

double ampdata::Rn ( )

Return the noise resistance normalized to internal z_norm. This normalizing resistance can be retrieved using sdata::get_znorm(). Returns: the noise resistance normalized to internal z_norm Definition at line 152 of file ampdata.cc.

complex ampdata::center ( int p )

Noise stability circle center. The noise stability circle is the circle for |gamma| = 1. Parameters: p   specifies the input or output port. Returns: the center of the stability circle. Definition at line 191 of file ampdata.cc.

complex ampdata::delta ( )

Returns: the determinant of the scattering matrix. Definition at line 167 of file ampdata.cc. Referenced by center(), k(), radius(), and unconditionally_stable().

complex ampdata::gamma_opt ( )

Returns: the optimum noise match. Definition at line 51 of file ampdata.cc. Referenced by t_min().

double ampdata::k ( )

Returns: k, which must be > 1 for unconditional stability Definition at line 178 of file ampdata.cc. Referenced by unconditionally_stable().

double ampdata::noise_measure ( )

Returns: the noise measure in standard units. Definition at line 139 of file ampdata.cc.

double ampdata::radius ( int p )

Noise stability circle radius. The noise stability circle is the circle for |gamma| = 1. Parameters: p   specifies the input or output port. Returns: radius of stability circle. Definition at line 211 of file ampdata.cc.

double ampdata::t_min ( )

Returns: the minimum noise temperature in standard units. Definition at line 92 of file ampdata.cc. Referenced by F_min().

int ampdata::unconditionally_stable ( ) [inline]

Returns: true if amp is unconditionally stable at this frequency. Definition at line 113 of file ampdata.h.

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The documentation for this class was generated from the following files:

• ampdata.h
• ampdata.cc

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