Why impedance matching still matters for transistors
This article aims to explain why impedance matching is required
Gregory Frizon Gusberti
Effective Methods for Dielectric Constant Characterization in PCB Design
This article explores three methods to determine a PCB’s effective dielectric constant by analyzing resonance and reflection peaks, enabling accurate permittivity extraction for design and simulation.
A Simple 2nd Order Low-Pass Filter
Low-pass filtering is key for noise reduction, sensor averaging, and controller stabilization. This article introduces a second-order low-pass filter, adjustable via complex pole placement in the Z-plane for optimal resonance and Q factor.
Characterization of Crystal Resonators
Crystal resonators are essential for high-stability oscillators, offering low cost, precision, stability, and low-power consumption. This article explores the extraction of their electrical parameters to optimize performance in electronic design.
Loop Antenna Design
This study focuses on the design, construction, and evaluation of a 50 Ohm loop antenna for the 434 MHz band. Beginning with a full-wave round loop antenna, the design evolves into a 2:1 rectangular loop, with experiments conducted to assess prototype performance and the effects of material choices.
BJT PN Junction Noise Source
Reverse biased base-emitter junctions are effectively used as noise sources,
HP 1152A Mod
Active probes are a must when designing high frequency topologies.
Garage Remote Control - Range Improvement
Remote controls for garage doors are designed as low-cost devices,
Blocking Oscillator
Blocking Oscillators were the standard method for creating oscillators and
DSSS BPSK Beacon
This article describes the development and working principles behind a