Learn why phase modulation (PM) and frequency modulation (FM) can produce waveforms that are nearly identical or completely different from one another, depending…
Learn why phase modulation (PM) and frequency modulation (FM) can produce waveforms that are nearly identical or completely different from one another, depending on the nature of the message signal.
Learn to confidently determine intermodulation distortion products and the third-order intercept point of RF circuits by…
Learn to confidently determine intermodulation distortion products and the third-order intercept point of RF circuits by working through a selection of example problems.
The output of a power amplifier can be a function of both present and past input values. In this article, we explore how…
The output of a power amplifier can be a function of both present and past input values. In this article, we explore how to characterize this important non-ideality.
Using phasors, we explore how real-valued bandpass signals are represented as complex baseband signals in the models used…
Using phasors, we explore how real-valued bandpass signals are represented as complex baseband signals in the models used by RF communication systems.
We explore the basic concepts of analog predistortion for linearizing RF amplifiers and review some common implementations.
We explore the basic concepts of analog predistortion for linearizing RF amplifiers and review some common implementations.
Learn about an important design technique for high-power RF transmitters: feed-forward linearization, which operates on…
Learn about an important design technique for high-power RF transmitters: feed-forward linearization, which operates on the principle of distortion signal cancellation.
We explore the implementation and design equations of the second-harmonic peaking amplifier.
We explore the implementation and design equations of the second-harmonic peaking amplifier.
Using the second-harmonic peaking amplifier as an example, we explore the basic principles of inverse Class F amplification.
Using the second-harmonic peaking amplifier as an example, we explore the basic principles of inverse Class F amplification.
Learn how this power amplifier uses a quarter-wavelength transmission line to achieve up to 100% efficiency.
Learn how this power amplifier uses a quarter-wavelength transmission line to achieve up to 100% efficiency.
We explore how adding a small amount of voltage ripple to a Class F amplifier increases its efficiency, then work through…
We explore how adding a small amount of voltage ripple to a Class F amplifier increases its efficiency, then work through a design example.
In this article, we derive the design equations for the third-harmonic peaking Class F amplifier with the flattest…
In this article, we derive the design equations for the third-harmonic peaking Class F amplifier with the flattest possible collector voltage waveforms.
In this article, we explore the foundational concepts of square-law modulators and examine some circuit implementations.
In this article, we explore the foundational concepts of square-law modulators and examine some circuit implementations.
This article explores the basic principles of Class F operation and introduces the third-harmonic-peaking Class F amplifier.
This article explores the basic principles of Class F operation and introduces the third-harmonic-peaking Class F amplifier.
In this article, we discuss a tuning method designed specifically for Class E RF amplifiers.
In this article, we discuss a tuning method designed specifically for Class E RF amplifiers.
Learn about the advantages and disadvantages of DSB-SC amplitude modulation.
Learn about the advantages and disadvantages of DSB-SC amplitude modulation.
In this article, we examine the effects of RF choke non-idealities on Class E amplifier performance and learn how to…
In this article, we examine the effects of RF choke non-idealities on Class E amplifier performance and learn how to choose the right choke inductance for your amplifier design.
In this article, we discuss the basics of RF modulation and how it affects the performance of communication systems.
In this article, we discuss the basics of RF modulation and how it affects the performance of communication systems.
In this article, we examine how non-zero switch transition times impact the efficiency of a Class E power amplifier.
In this article, we examine how non-zero switch transition times impact the efficiency of a Class E power amplifier.
In this article, we examine the filtering requirements of Class E power amplifiers with less-than-ideal Q-factors.
In this article, we examine the filtering requirements of Class E power amplifiers with less-than-ideal Q-factors.
In this article, we analyze the operation of the Class E amplifier and examine the underlying assumptions of its design equations.
In this article, we analyze the operation of the Class E amplifier and examine the underlying assumptions of its design equations.
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