Categories

What Is the Skin Effect?

Textbook

The Skin Depth of Copper in Electrical Engineering As previously…

Waveguides

Textbook

A waveguide is a special form of transmission line consisting of a…

Electrical Signal Types

Textbook

With BogusBus, our signals were very simple and straightforward: each…

Maximum Power Transfer Theorem

Textbook

The Maximum Power Transfer Theorem is not so much a means of analysis…

Mixed-Frequency Signals

Worksheets - Antennas

What is a harmonic frequency? If an oscillator circuit outputs a…

Principles of Radio

Textbook

One of the more fascinating applications of electricity is in the…

Standing Waves and Resonance

Textbook

Whenever there is a mismatch of impedance between transmission line…

Antenna Downtilt and Coverage Calculator

Tools

This calculator will determine the correct antenna downtilt angle given the heights of the antennas and distance between them.

Special Transformers and Applications

Textbook

Impedance Matching Because transformers can step voltage and current…

Fundamentals of Radio Communication

Worksheets - Antennas

What does the acronym RF stand form, in reference to radio-related…

BJT Quirks

Textbook

An ideal transistor would show 0% distortion in amplifying a signal.…

Passive Filter Circuits

Worksheets - Antennas

In very simple, qualitative terms, rate the impedance of capacitors…

RF Power Ratio Conversion Calculator

Tools

This tool is designed to convert power ratios to decibel

Optical Data Communication

Textbook

A modern alternative to sending (binary) digital information via…

AC Instrumentation Transducers

Textbook

Just as devices have been made to measure certain physical quantities…

Microstrip Patch Antenna Calculator

Tools

This tool calculates the dimensions of the microstrip patch antenna given the desired operating frequency.

Introduction to Digital Communication

Textbook

In the design of large and complex digital systems, it is often…

Free Space Path Loss Calculator

Tools

This calculator calculates the free space loss, given the distance, frequency, and gain, between two antennas.

Friis Transmission Calculator

Tools

This calculator computes the power received by an antenna using Friis formula

Radio Circuits

Textbook

(a) Crystal radio. (b) Modulated RF at antenna. (c) Rectified RF at…

Inductance, Reactance, and Admittance Calculator

Tools

This calculator gives the reactance and admittance of an inductor or the inductance given the reactance of an inductor

Microstrip Inductance Calculator

Tools

This calculator computes the inductance of a microstrip etched on a PCB.

Review of R, X, and Z (Resistance, Reactance and Impedance)

Textbook

Before we begin to explore the effects of resistors, inductors, and…

Snell’s Law Calculator

Tools

Given three of the four input parameters (refractive indices, angles of incidence, and refraction) this tool calculates the missing variable based on Snell's law.

Harmonics in Polyphase Power Systems

Textbook

In the chapter on mixed-frequency signals, we explored the concept of…

Electric Shock

Worksheets - Antennas

It is sometimes said regarding electrical safety that, Ït’s not the…

Capacitance, Reactance, and Admittance Calculator

Tools

A calculator for solving the capacitance, reactance, and admittance of a capacitor.

What is a Filter?

Textbook

It is sometimes desirable to have circuits capable of selectively…

Power Density Calculator

Tools

A tool designed to calculate the power density of an antenna

Special Transformers and Applications

Textbook

Impedance Matching Because transformers can step voltage and current…

Characteristic Impedance

Textbook

The Parallel Wires of Infinite Length Suppose, though, that we had a…

Band Theory of Solids

Textbook

Quantum physics describes the states of electrons in an atom according…

T-Pad Attenuator Calculator

Tools

This calculator helps you determine the values of the resistors R1 and R2 to be used for a T-pad attenuator.

Microstrip Wavelength Calculator

Tools

A tool designed to calculate the guided wavelength inside a microstrip.

Pi Attenuator Calculator

Tools

This calculator helps you determine the values of the resistors R1 and R2 to be used for a Pi Attenuator.

Design Project: Radio Transmitter

Worksheets - Antennas

Research the FCC (Federal Communication Commission) guidelines on…

Optical Data Communication

Textbook

A modern alternative to sending (binary) digital information via…

AC Waveforms

Textbook

When an alternator produces AC voltage, the voltage switches polarity…

Design Project: Pulse-Width Modulation (PWM) Signal Generator

Worksheets - Antennas

What shape of voltage waveform would you expect to measure (using an…

Power Added Efficiency Calculator

Tools

A calculator designed to compute the power-added efficiency (PAE) of an amplifier

Edge Coupled Trace Inductance Calculator

Tools

This calculator helps you compute for the inductance of an edge coupled trace.

Practical Power Factor Correction

Textbook

When the need arises to correct for poor power factor in an AC power…

Waveguide Calculator (Rectangular)

Tools

This tool calculates the cutoff frequency of a rectangular waveguide

Electromagnetism

Textbook

The discovery of the relationship between magnetism and electricity…

Voltage/Current Converter OpAmp Circuits

Worksheets - Antennas

Don’t just sit there! Build something!! Learning to mathematically…

History of SPICE

Textbook

SPICE is a computer program designed to simulate analog electronic…

Digital Display Circuits

Worksheets - Antennas

What is the purpose of a seven-segment decoder circuit? What is a…

Scientific Notation and Metric Prefixes

Worksheets - Antennas

Write the following exponential expressions in expanded form: 101 =…

Contact “Normal” State and Make/Break Sequence

Textbook

Any kind of switch contact can be designed so that the contacts…

Practical Considerations - Inductors

Textbook

Inductors, like all electrical components, have limitations which must…

Memory with moving parts: “Drives”

Textbook

The earliest forms of digital data storage involving moving parts was…

Current Divider Circuits

Worksheets - Antennas

Don’t just sit there! Build something!! Learning to mathematically…

DC Transducers

Worksheets - Antennas

Research and describe what the Hall effect is, and list some practical…

Voltage Divider Calculator

Tools

The voltage divider is a circuit used to create a voltage less than or equal to the input voltage.

Intro Lab - Ohm’s Law

Textbook

Project Overview This project employs all of the skills…

Biasing Techniques (BJT)

Textbook

In the common-emitter section of this chapter, we saw a SPICE analysis…

Don’t Care Cells in the Karnaugh Map

Textbook

Up to this point we have considered logic reduction problems where…

Active-mode Operation (JFET)

Textbook

JFETs, like bipolar transistors, are able to “throttle”…

Optothyristors

Textbook

Like bipolar transistors, SCRs and TRIACs are also manufactured as…

Insulated-gate Field-effect Transistors (MOSFET)

Textbook

The Insulated-Gate Field-Effect Transistor (IGFET), also known as…