The Smith Chart is shown in Figure 1. It is a very useful tool for solving the problems of RF engineers with regards to…
Author: eazambuja
What is MEMS technology
This post answers the question: "What is MEMS technology?". MEMS (Micro Electro-Mechanical Systems) technology is a technology for creation of microscopic integrated devices and…
Power BJT – static characteristics
The power BJT static characteristics determine the safe operational regime of the device. These characteristics are usually described in the datasheet as maximum ratings.…
BJT definition and characteristics
BJT transistor is a three terminal semiconductor device, based on three layers of p and n layers, with different doping concentration. BJT transistor can…
Magnetic induction vector circulation
There are two methods of magnetic induction B calculation. The first method is using the Biot-Savart-Laplace and induction superposition principle. The second method is…
Electromagnetic induction
In 1831 British physicist Michael Faraday was analysing all the cases of electromagnetic induction phenomena – phenomena of current induction in a conductor along…
Quarter-wave impedance transformer
The quarter-wave impedance transformer is a device that matches the transmission line and the impedance and is shown in Figure 1. Let's consider the…
Nanoelectronics: MEMS fabrication methods
As mentioned before MEMS can be fabricated with three following methods: bulk micromachining, surface micromachining, and high-aspect ratio micromachining (HARM). MEMS fabrication is based…
Power MOSFET and it’s characteristics
This post tells about power MOSFET characteristics and operating modes. Power MOSFET is a unipolar three-terminal semiconductor device that controls the large amounts of…
Transmission line circuit for mismatched load and generator
Let's consider the most general case of a circuit, where we have the arbitrary loads Z1, Z2 and an arbitrary generator. The input impedance of…