Software
Name |
Abstract |
2.4 GHz Wireless Network Link Analysis
|
Interactive Wireless
Design Utilities. |
AlGaAs band diagram and E-K diagram |
Educational Applet in
Solid State Materials. This will show change the composition of AlGaAs and its
corresponding properties. |
Amateur Radio RF Safety Calculator |
This program uses the
formulas given in FCC OET Bulletin No. 65 to estimate power density in the main
lobe of an antenna, with use of the EPA-recommended ground reflection factor as
an option. This program is intended for approximate far-field
calculations. |
Antenna System Evaluator |
This JavaScript
program evaluates the performance of your antenna system, computing the
consequences of SWR and feedline loss. |
Antenna Tilt Calculator |
Interactive Wireless
Design Utilities. |
Approximate Air Coil Inductance Calculator
|
RF Design CGI
|
Calculate the frequency/length of antennas
|
n/a |
CMSA Filter Designer |
Designs a Digital
Filter and draws the frequency response. |
Coax Balun Design |
Calculates the half
wave length of the matching section of the 4:1 coax balun by using the the
equations taken from the ARRL Antenna Book. |
Coaxial Cable Attenuation & Power Handling
Calculator |
The calculator can be
used to estimate the attenuation (dB loss), power handling capability, and
transmission efficiency for some of the more popular Wireless Communications and
MIL Spec cables at the frequency of interest. |
Converison Formulas |
Some commonly used RF
conversion formulas. |
CUBICAL QUAD ANTENNA CALCULATOR |
A Java script cubical
quad antenna calculator. |
dB/Watts/ERP/EIRP Calculator |
This calculator
converts dB to Watts, Watts to dB, ERP and EIRP. |
Decibel Conversion Calculator |
Interactive Wireless
Design Utilities. |
Decibels and Distance |
This calculation will
give you the amount of attenuation, in decibels, you can expect with a change in
receiver distance, in a free field (outdoors). |
Dielectric Properties of Body Tissues at RF and Microwave
Frequencies for SAR Evaluations |
The tissue parameters
provided here are derived from the 4-Cole-Cole Analysis in "Compilation of the
Dielectric Properties of Body Tissues at RF and Microwave Frequencies" by
Camelia Gabriel, Brooks Air Force Technical Report AL/OE-TR-1996-0037.
|
Digital Circuits: CMOS Inverter |
The VT-matching issues
(for the design of threshold voltage of MOSFET) |
Distance & Bearing Calculator |
Interactive Wireless
Design Utilities. |
Downtilt Calculator |
Calculate coverage
areas for electrically downtilted antennas. |
Dual (Asymmetric) Stripline |
Impedance and
Capacitance Calculator |
Dual (Asymmetric) Stripline Noise Budget
Modeling |
Dual (Asymmetric)
Stripline Noise Budget Modeling |
Dual (Asymmetric) Stripline Impedance and Capacitance
Calculator |
Dual (Asymmetric)
Stripline Impedance and Capacitance Modeling |
Electrical Degrees Calculator |
This could be usefull
to determine if a structure is an effective re-radiator of an RF signal.
|
Electromagnetics |
This applet
demonstrates how the different parameters affect the magnetic field obtained in
the air gap of a permenant magnet. |
Embedded Microstrip |
Impedance and
Capacitance Calculator |
Environmental Factor Analysis |
Interactive Wireless
Design Utilities. |
Fabrication Steps of an FET and a BJT |
The fabrication steps
of a pair of Metal-Oxide-Semiconductor (MOS) Field Effect Transistor (FET) and a
Bipolar Junction Transistor (BJT) on a Silicon wafer is illustrated in this
applet. |
Folded Dipole Design |
Calculates the input
impedance of folded dipole. |
Formation of a PN Junction Diode and its Band
Diagram |
A graphical
illustration of the formation of a PN junction diode and its band diagram. It
shows both the band diagram and a chematic cross-section of the sample.
|
Fresnel Zone Calculator |
Interactive Wireless
Design Utilities. |
Haynes-Shockley Experiment |
Educational Applet in
Solid State Materials. Visualization of diffusion, drift and recombination of
excess minority carriers in a semiconductor. |
Horizontal antenna pattern |
Animated graphics of
antenna patterns for electrically downtilted antenna. |
Impedance Calculator |
In-Circuit Design
Interactive Multilayer Impedance Calculator |
Indirect Recombination via a Gap State
|
Educational Applet in
Solid State Materials. It introduces the four basic processes in the
Shockley-Read-Hall statistics. |
Interactive Amplitude Modulation Model
|
Interactively explore
the mathematical model behind amplitude modulation. |
Interactive Digital Filter Design |
This is an interactive
filter design package, for designing digital filters. |
Interactive Frequency Modulation Model
|
Interactively explore
the mathematical model behind frequency modulation. |
IPC-SM-782 |
This program is
intended to serve as a guide to the manipulation of data that supports the
concepts and methodology for developing surface mount land patterns that are
identified in IPC-SM-782, "Surface Mount Design and Land Pattern Standard".
Registration is required before you enter the calculator site.
|
Knife Edge Diffraction Loss Calculator
|
Interactive Wireless
Design Utilities. |
Lateral Cross-talk Modeling |
Parallel Conductors
Lateral Cross Talk Modeling |
Lumped Component Wilkinson Splitter/Combiner
|
Lumped Component
Wilkinson Splitter/Combiner Designer |
MATCHER |
Impedance Matching
Network Designer |
Microstrip |
Impedance and
Capacitance Calculator |
Microstrip Calculator |
This calculator
provides accurate microstrip transmission line analysis and synthesis. A
cross-section of a microstrip transmission line is shown below. The electrical
parameters may be determined from specified physical parameters, or the physical
parameters required to meet a given set of electrical parameters may be
found. |
Microstrip Impedance and Capacitance Calculator
|
Microstrip Impedance
and Capacitance Modeling |
Minimum Loss Attenuator |
This online tool
calculates lumped element circuits for PI and TEE attenuators in real
time. |
Mixer Spur Chart Calculator |
Calculates the
frequencies and power levels of the single-tone mixer spurs.
|
MOS Transistor |
MOS transistor virtual
lab prototype |
n-channel MOSFET Fabrication |
The device fabrication
steps are shown for n-channel Metal-Oxide-Semiconductor (MOS) Field Effect
Transistor (FET). All photolithography processes are shown by means of
animation. |
Omnidirectional Antenna Beamwidth Analysis
|
Interactive Wireless
Design Utilities. |
Operation of MOS Transistor |
Educational Applets in
Solid State Materials |
Panel Calculator |
Panel
Calculator |
Parabolic Reflector Analysis |
Interactive Wireless
Design Utilities. |
Pi and T Network Resistive Attenuation Calculator
|
RF Design CGI.
|
PLL Loop Filter Design Program |
A fast simple Java
routine for designing 3rd order PLL loop filters. |
PN Junction Diode |
A multimedia approach
to semiconductor fabrication steps. It's an interesting animated look at how
semiconductors are manufactured from silicon to the packaged ICs.
|
PN Junction Diode under Bias |
It shows both the
energy band under bias and the animated carriers flowing across the
junction. |
Polyphase Two-Path Filter Designer in Java
|
This is a simple
filter design program written entirely in Java. It calculates floating-point
coefficients of the two-path polyphase structure first described by F. Harris,
A. G. Constantinides and Valenzuela. |
Resonator Modeling Design Guide |
This online tool
calculates equivalent lumped element circuits for quarter and half wave
resonators in real time. |
Return Loss Calculator |
Interactive Wireless
Design Utilities. |
RF Safety Compliance Calculator |
This program uses the
formulas given in FCC OET Bulletin No. 65 to estimate power density in the main
lobe of an antenna, with use of the EPA recommended ground reflection factor as
an option. |
Smith Chart |
Hit the Play button
(triangle), and the program will display a circle with a radius equal to the
reflection coefficient magnitude (constant VSWR circle). |
Solid Sate: Zincblende and Diamond structures
|
It shows a 3D view of
the unitcell and a 3D view of the covalent bonds. |
Spicap |
An online engineering
tool that defines the frequency response and voltage coefficient for AVX ceramic
chip capacitors. |
Spitan |
An online engineering
tool that defines the frequency response for AVX tantalum chip
capacitors. |
Stripline Analysis |
Stripline Analysis
(experimental) |
Stripline Impedance and Capacitance Calculator
|
Stripline Impedance
and Capacitance Modeling |
Switched Capacitor Integrator Designer
|
This preliminary
synthesis program is still helpful though Pole-zero cancellation doesn't work
ideally, because of process variations. |
THE ELECTROMAGNETIC SPECTRUM |
An electromagnetic
spectrum calculator |
The Receiver Model Tool |
This Javascript-based
tool allows you to enter photodiode and filter parameters, select an ANADIGICS
TIA, and calculate the output for Bandwidth, Sensitivity and Optical
Overload. |
The Smith Chart Java Applet |
It can calculate
resistance and reactance, draw points on the chart or calculate and draw
standing wave structure for a given point on the chart. |
The Transimpedance Amplifier Tool |
This particular
calculation uses a generic receiver model. Simply input the starting values to
configure the system with the desired elements. This model will calculate gain,
noise figure, dynamic range, and other system parameters. |
Time Domain vs. Frequency Domain |
This spectral
simulation is an interactive Java applet. You can change parameters by clicking
on the vertical arrow keys. The five control buttons at the lower right are used
to start (triangle) and pause (square) the simulation, to skip forward or back
one section at a time (double triangles), and to change speed (+ and -).
|
United States Frequency Allocations 30 - 3000
MHz |
United States
Frequency Allocations 30 - 3000 MHz |
Vertical antenna pattern |
Animated graphics of
antenna patterns for electrically downtilted antenna. |
Vertical Cross-talk Modeling |
Parallel Conductors
Vertical Cross Talk Modeling |
Voltage to Power Conversion Calculator
|
Voltage to Power
Conversion Calculator |
Wave Propagation along a Transmission Line
|
When a sine wave from
an RF signal generator is placed on a transmission line, the signal propagates
toward the load. This signal, shown here in yellow, appears as a set of rotating
vectors, one at each point on the transmission line. |