Gusberti Analog

This article aims to explain why impedance matching is required for extracting the maximum gain from transistors, as is typically required in RF applications.

This article explores three methods for determining the effective dielectric-constant of a PCB material.

Usually, when developing signal processing applications, we encounter the need for low-pass filtering - for reducing noise in sampled systems, averaging sensor measurements or, as will be discussed at the end of the article, for closed-loop controllers th…

This article explores the extraction of the electrical parameters of a crystal resonator.

This article describes the design, construction, and measurements performed on a 50 Ohm loop antenna for the 434 MHz band.

Reverse biased base-emitter junctions are effectively used as noise sources, with a great amount of ENR (Excess Noise Ratio) originating from the intrinsic behavior of avalanche and zener operation.

Active probes are a must when designing high frequency topologies.

Remote controls for garage doors are designed as low-cost devices, using very low part counts, and with small size for portability.

Blocking Oscillators were the standard method for creating oscillators and pulses in the Vacuum Tube era.

This article describes the development and working principles behind a discrete Spread Spectrum BPSK beacon.

Parametric amplifiers and frequency dividers are a class of devices less known by RF enthusiasts.

In most modulation systems, for transmission over long distances, high power amplifiers are used at the output.

One of the most important factors for understanding the phenomena found in day-to-day engineering is the deep knowledge of the tools and their natural functioning.

In digital communication, where data messages are transmitted encoded in bitstreams, the receiver end is always presented with the challenge of clock recovery.

For proper operation of the Microwave Power Meter, a calibration system was developed, working as a dynamic mapping function that converts the Power Meter Probe voltage to the corresponding input power.