Wireless/RF Technical Articles

Transmit humidity and temperature data with a fully functional, off-the-shelf, battery-less wireless sensor node.

RFID is an advanced technique for attaching information to objects of all kinds, and ICs such as the ST25DV series can help you to implement this technology....

The ADGM1004 MEMS switch from Analog Devices is a high-performance solution for both low-frequency and high-frequency applications.

This technical brief discusses the characteristics and benefits of spread-spectrum modulation.

All about software-defined radio (SDR).

Learn about (for lack of a better term) packetization, a technique that facilitates robust data transfer in optical, RF, and long-distance-digital communication systems....

Learn about Manchester encoding, a simple and effective way to improve high-speed or wireless digital communication.

This technical brief explains what a CRC is and how you can use it to make your digital communication more robust.

How do designers cope with a system that has highly variable input amplitude yet requires fairly constant output amplitude? Let’s take a look....

Wireless Power Transfer holds the promise of freeing us from the tyranny of power cords. This technology is being incorporated into all kinds of devices and systems....

Tutorial on designing a Bluetooth Low Energy (BLE) circuit with the ability to measure 9-axis motion, humidity, and temperature.

Antennas allow information to be transferred to distant locations. In the second part of this Antenna Basics series, you will learn more about the physics of how antennas work....

Maxwell's equations, which summarize the interaction of electromagnetic fields, have always been described using the "math of the times." Using tensors, they can be given in two equations!...

Antennas are used to transmit and receive electromagnetic energy. This article covers basic antenna theory.

This technical brief explains what differential QPSK is and why it can be advantageous compared to ordinary QPSK.

This technical brief covers the basic characteristics of a digital modulation scheme known as quadrature phase shift keying.

Harvesting energy from non-conventional sources has received an increased interest as designers look for alternative power sources. Even though the power is usually harvested in small amounts,...

Classifying signals is a way to organize the signals that surround us. It focuses design, testing requirements, measurement tools, and expected results. There are many ways to classify...

In this article, we'll delve into amplitude modulation and what it's used for. Also, we will differentiate between communication methods that do and do not use modulation....