Latest Wireless/RF Education

Categories

Introduction to Mixed-Frequency AC Signals

Textbook

In our study of AC circuits thus far, we’ve explored circuits…

Free Space Path Loss Calculator

Tools

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

Active Filters

Worksheets - Wireless/RF

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

Voltage and Current Calculations

Textbook

There’s a sure way to calculate any of the values in a reactive…

Magnetic Units of Measurement

Textbook

If the burden of two systems of measurement for common quantities…

LC Tank Circuit Resonance Calculator

Tools

This calculator computes the resonant frequency of a parallel inductor and capacitor "tank" circuit.

Signal Modulation

Worksheets - Wireless/RF

A modern method of electrical power control involves inserting a…

Bridged-Tee Attenuator Calculator

Tools

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

Mixed-Frequency Signals

Worksheets - Wireless/RF

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

Peak Detector

Textbook

A peak detector is a series connection of a diode and a…

Microstrip Wavelength Calculator

Tools

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

Networks and Busses

Textbook

The wires between the tank and the monitoring location is  called…

Other Waveshapes

Textbook

As strange as it may seem, any repeating, non-sinusoidal waveform is…

What Is the Skin Effect?

Textbook

The Skin Depth of Copper in Electrical Engineering As previously…

RF Power Conversion Calculator

Tools

A tool designed to convert RF power from watts to decibels and vice versa

Wavelength (TEM) Calculator

Tools

This calculator determines the wavelength of a signal given the frequency and dielectric constant.

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.

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

Textbook

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

Permanent Magnets

Textbook

Centuries ago, it was discovered that certain types of mineral rock…

Selsyn (Synchro) Motors

Textbook

Normally, the rotor windings of a wound rotor induction motor are…

Digital Logic Signals

Worksheets - Wireless/RF

A rheostat (variable resistor) and a switch are both examples of…

Modern Nonmechanical Memory

Textbook

Now we can proceed to studying specific types of digital storage…

Venn Diagrams and Sets

Textbook

Mathematicians use Venn diagrams to show the logical relationships of…

Junction Field-effect Transistors

Textbook

The field effect transistor was proposed by Julius Lilienfeld in US…

Fundamentals of SPICE programming

Textbook

Programming a circuit simulation with SPICE is much like programming…

Series and Parallel Capacitors

Textbook

When capacitors are connected in series, the total capacitance is…

DC Lab - Voltage Divider

Textbook

In this hands-on electronics experiment, you will build a resistive voltage divider and observe how Ohm's law and Kirchhoff's voltage law (KVL) function in real circuits using a voltmeter and an ammeter.

Design Project: Stepper Motor Driver

Worksheets - Wireless/RF

At first it may seem pointless to have the four buffer gates following…

Phasor Mathematics

Worksheets - Wireless/RF

Provide a definition for phasor, as the term applies to electrical…

Insulator Breakdown Voltage

Textbook

The atoms in insulating materials have very tightly-bound electrons,…

Why digital?

Textbook

Although many textbooks provide good introductions to digital memory…

Series R, L, and C

Textbook

Let’s take the following example circuit and analyze it:  …

Safety Grounding

Worksheets - Wireless/RF

In simple AC power systems, one of the two conductors is typically…

Ring Counters

Textbook

If the output of a shift register is fed back to the input. a ring…

AC Lab - LC Tank Circuit

Textbook

In this hands-on AC electronics experiment, build a parallel resonant inductor-capacitor circuit and learn about oscillation, resonant frequency, and damping.

Digital Lab - S-R Flip-flop Using NAND Gates

Textbook

In this hands-on electronics experiment, build an edge-triggered S-R flip-flop, learn the difference between a latch and a flip-flop, and experience how a switch bounce can cause logic errors.

Introduction to Operational Amplifiers (Op-amps)

Textbook

What is an Operational Amplifier (Op-amp)? Operational Amplifiers,…

Embedded Microstrip Impedance Calculator

Tools

This calculator helps you compute the characteristic impedance of an embedded microstrip.

Boolean Algebraic Properties

Textbook

Another type of mathematical identity, called a “property”…

Fail-safe Design

Textbook

Logic circuits, whether comprised of electromechanical relays or…

Sequences

Textbook

Arithmetic Sequences An arithmetic sequence is a series of numbers…

Intro Lab - Nonlinear Resistance

Textbook

In this hands-on electronics experiment, you will compare the resistance of a lamp filament in its on and off states and learn about nonlinear resistances by applying Ohm's law.

Early Tube History

Textbook

Thomas Edison, that prolific American inventor, is often credited with…

Binary Math

Worksheets - Wireless/RF

Counting practice: count from zero to thirty-one in binary, octal, and…

Instrumentation Amplifier Gain Calculator

Tools

The instrumentation amplifier calculator will assist in the design and analysis of a conventional instrumentation amplifier circuit by calculating the required resistor values and gain.

Performance-Based Assessments for Analog Integrated Circuit Competencies

Worksheets - Wireless/RF

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

Textbook

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

555 Lab - Schmitt Trigger

Textbook

In this hands-on electronics experiment, build a Schmitt trigger using a 555 timer and learn about hysteresis and the inner workings of the extremely versatile 555 timer IC.

An Analogy for Divided Feedback

Textbook

A helpful analogy for understanding divided feedback amplifier…

Resistivity Calculator

Tools

This calculator calculates the resistivity of a component based on its resistance value, length, and cross-sectional area.

AC Lab - Signal and Noise Coupling

Textbook

In this hands-on AC electronics experiment, power a DC motor through a multi-conductor cable to learn how AC signals are coupled between conductors and how to mitigate noise coupling.

Negative Feedback

Textbook

If we connect the output of an op-amp to its inverting input and apply…

Si Lab - Half-wave Rectifier

Textbook

In this hands-on semiconductor electronics experiment, build a half-wave rectifier circuit using a silicon diode and learn about the differences between permanent magnet motor operation on AC vs. DC power.

AC Motor Control Circuits

Worksheets - Wireless/RF

Perhaps the most challenging aspect of interpreting ladder diagrams,…

Design Project: Power Inverter

Worksheets - Wireless/RF

A common topology for DC-AC power converter circuits uses a pair of…

Copper Wire Gauge Table

Textbook

Solid Cooper Wire Table Size Diameter (inches) Cross-sectional area…

More on AC “polarity”

Textbook

Complex numbers are useful for AC circuit analysis because they…

Octal and Hexadecimal Numeration

Textbook

Because binary numeration requires so many bits to represent…

Switch Types

Textbook

Though it may seem strange to cover the elementary topic of electrical…

Finite State Machines

Textbook

Up to now, every circuit that was presented was a combinatorial…