Latest Wireless Technical Articles

In this article, we compare the scope of factory and user calibration for vector network analyzers (VNAs). We then learn…

In this article, we compare the scope of factory and user calibration for vector network analyzers (VNAs). We then learn about the types of errors that calibration techniques can't correct.

In this project article, we design a handheld gaming console with wireless multiplayer functionality using ESP8266…

In this project article, we design a handheld gaming console with wireless multiplayer functionality using ESP8266 microcontrollers. We then program a game for it with the Arduino IDE.

Learn the basics of how vector network analyzer (VNA) calibration techniques correct measurement errors.

Learn the basics of how vector network analyzer (VNA) calibration techniques correct measurement errors.

In this article, we investigate two metrics used to characterize the performance of RF test and measurement systems.

In this article, we investigate two metrics used to characterize the performance of RF test and measurement systems.

In this article, we explore how the signal source and receivers of a VNA enable its function.

In this article, we explore how the signal source and receivers of a VNA enable its function.

Learn how bifilar coils can be used to build Gustav Guanella’s classic RF balun.

Learn how bifilar coils can be used to build Gustav Guanella’s classic RF balun.

Directional couplers are valuable tools for testing RF systems. However, the finite directivity of these devices can…

Directional couplers are valuable tools for testing RF systems. However, the finite directivity of these devices can cause measurement uncertainty. Learn more in this article.

Learn about the balun, a special type of transformer used in mixers, amplifiers, and signaling.

Learn about the balun, a special type of transformer used in mixers, amplifiers, and signaling.

Learn how a push-pull Class B amplifier functions, how to calculate its efficiency, and how its performance compares to…

Learn how a push-pull Class B amplifier functions, how to calculate its efficiency, and how its performance compares to the inductively-loaded Class A design.

How does a Class B power amplifier work? What makes it more efficient than a Class A power amplifier? Learn the answers…

How does a Class B power amplifier work? What makes it more efficient than a Class A power amplifier? Learn the answers in this article.

In this article, we explore the types of impedance tuners most commonly used for load-pull measurement—their…

In this article, we explore the types of impedance tuners most commonly used for load-pull measurement—their advantages, their disadvantages, and the methods by which they synthesize impedance.

The output power and efficiency of a power amplifier (PA) are highly dependent on its load terminations. Learn how to…

The output power and efficiency of a power amplifier (PA) are highly dependent on its load terminations. Learn how to characterize a PA's performance by analyzing load lines and estimating the load-pull contours of constant output power.

In the final installment of our series on the development of the Anthilla Controller, we look at the legal requirements…

In the final installment of our series on the development of the Anthilla Controller, we look at the legal requirements for bringing the project to market in the European Union.

Learn how an inductively-loaded common-emitter stage can function as a power amplifier.

Learn how an inductively-loaded common-emitter stage can function as a power amplifier.

This four-part series walks through the development of the Anthilla Controller, an open-source Internet of Things (IoT)…

This four-part series walks through the development of the Anthilla Controller, an open-source Internet of Things (IoT) hardware platform. In Part 3, we cover the manufacturing, assembly, and product testing of the board.

RF amplifier design is a challenging task, involving trade-offs between linearity, efficiency, gain, and output power.…

RF amplifier design is a challenging task, involving trade-offs between linearity, efficiency, gain, and output power. Here, we examine how a common-emitter circuit can, or can't, function as a power amplifier.

In this four-part series, we walk through the development of the Anthilla Controller, an open-source Internet of Things…

In this four-part series, we walk through the development of the Anthilla Controller, an open-source Internet of Things (IoT) hardware platform. Part 2 explains the process and requirements of obtaining an open-source hardware certification.

Learn how the available power gain concept can help us solve the problem of designing a bilateral RF amplifier for a…

Learn how the available power gain concept can help us solve the problem of designing a bilateral RF amplifier for a specified gain and noise figure.

In this article, we learn about noise parameters and use Smith charts to design a unilateral low-noise amplifier (LNA)…

In this article, we learn about noise parameters and use Smith charts to design a unilateral low-noise amplifier (LNA) for a specified gain.