User-based Software Tool for S-Parameter Conversion and Manipulation

Abstract

S-parameters fully characterize the linear behavior of an arbitrary number of ports. We aim to characterize various field-effect transistors (FETs), each having a certain gate width and geometry, from their S-parameters. We extract the data from the vector network analyzer in real-time and perform a series of calculations and conversions on the initial S-parameters. Using a software tool written in C++ that interfaces with the vector network analyzer (VNA), the corresponding computer monitor, and two direct current (DC) power supplies, the user can collect relevant real-time data about a device under test (DUT). The software contains a number of user-input interfaces paired with appropriate graph canvases. Its main functionalities include: conversion of S-parameters to H-parameters, selection of H21 in an effort to calculate the frequency (ft) at which the transistor exhibits unity current gain, a family of current-voltage (I-V) curves of the DUT, and calculations and plots of transconductance (gm). Future work will include measuring a variety of devices and allowing the software tool to collect statistics on them.

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Document Details

Document Type
Technical Report
Publication Date
Sep 01, 2011
Accession Number
ADA552942

Entities

People

  • Robert Proie
  • Scott Trocchia
  • Tony Ivanov

Organizations

  • United States Army Research Laboratory

Tags

Communities of Interest

  • Advanced Electronics
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Algorithms
  • Analyzers
  • Compound Semiconductors
  • Computers
  • Conversion
  • Field Effect Transistors
  • Frequency
  • Graphical User Interface
  • Measurement
  • Monitors
  • Power Gain
  • Power Supplies
  • Radio Frequency
  • Transconductance
  • Transistors
  • User Interface
  • Voltage

Fields of Study

  • Engineering

Readers

  • Computer Science.
  • Integrated Circuit Design and Technology.
  • Semiconductor Device Technology