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fhx13x Class Reference

Creates a Fujitsu FHX13X low-noise HEMT. More...

#include <hemt.h>

Inheritance diagram for fhx13x::

List of all members.

Public Methods
	fhx13x ()
Private Methods
void	recalc ()
	The function for calculating sdata. More...
Private Attributes
double	td_min
	Minimum drain temperature. More...
double	td_297k
	Drain temperature for 297 Kelvin transistor. More...
double	slope
	Assuming drain temperature rises linearly with ambient temperature, the slope of that rise from td_min at 5K. More...

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Detailed Description

Creates a Fujitsu FHX13X low-noise HEMT.

Uses parameters determined by John Ward and Jacob Kooi by fitting Marian Pospiezalski's model to Fujitsu's room temperature data sheet.

The drain temperature for transistors below 5 K is fixed at 500 K. The room-temperature drain temperature was determined from the fit to the data sheet. Avove 5 K, the drain temperature is interpolated based on the 5 K and 297 K values.

Definition at line 68 of file hemt.h.

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Constructor & Destructor Documentation

fhx13x::fhx13x ( )

Definition at line 38 of file hemt.cc.

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Member Function Documentation

void fhx13x::recalc ( ) [private, virtual]

The function for calculating sdata. recalc() should do the following: (1) Read device::f, device::Z0, and, by default, device::T to get the operating conditions for the response calculation. (2) Calculate the S, C, and B matrix values and store them to nport::data, with all values normalized using device::Z0. (3) Store the normalizing impedance to nport::data by calling data.set_znorm(). Reimplemented from fet. Definition at line 61 of file hemt.cc.

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Member Data Documentation

double fhx13x::slope [private]

Assuming drain temperature rises linearly with ambient temperature, the slope of that rise from td_min at 5K. Definition at line 85 of file hemt.h.

double fhx13x::td_297k [private]

Drain temperature for 297 Kelvin transistor. Definition at line 79 of file hemt.h.

double fhx13x::td_min [private]

Minimum drain temperature. Definition at line 76 of file hemt.h.

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

• hemt.h
• hemt.cc

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