What do We Expect for Future Education?

Teachers have always been an integral part in society in training up generations to be functional citizens in the society. Often times, industry and academia are closely related. Both are mutually supportive with the industry pointing academia to the right direction in syllabus, keeping them updated with the latest technology, and academia providing the human …

Generalized Chebyshev Filter

In this week article, lets discuss the Generalized Chebyshev class filter. Firstly, here's a video on a Generalized Chebyshev class filter constructed using our EDS HF software. https://www.youtube.com/watch?v=cYPvdXOXlW4 The Design The Generalized Chebyshev filters have equiripple passband characteristics and flexibility in placing transmission zeros arbitrarily. The synthesis of this type of filter is based on …

The Inverter

In the process of designing a lumped element filter, the circuit layout that is usually used to realize the filter is known as the "ladder network". Why ladder? Simply saying, because the layout looks like a ladder. The picture below shows a ladder network that is consisting of only resistors. In a lumped element lowpass …

How to Design Impedance Matching

When designing schematics, impedance matching is an importance process to ensure minimum loss of the design. When a schematic is mismatched, it will result in high reflection of the input signal, this would translate into transfer loss. A schematic that is matched will ensure the lowest possible loss theoretically, that is maximum power transfer. When …

5 Minutes History of Electricity

Thales of Miletus Ever wonder what's the history of electricity, which has become a daily necessity to modern man? To start, we have to look into the history of electromagnetism. The history of Electromagnetism can be categorized into two eras; classical and modern eras. This covers from the classical era of the fundamental laws of …

Asymmetric Impedance Scaling and Frequency Transformation

https://youtu.be/acqtEmFCEjs Asymmetric filters are filters whose response are asymmetric in shape. They are useful for many applications that may require a different requirements between the upper and lower stopband. For example difference in upper/lower cut-off frequency, selectivity and insertion loss. This week video, see an example of an asymmetric filter design that applies impedance scaling …

The Importance of Software Tools in Education

The study of electrical and electronics engineering has always been a race against time. Ask many of the students studying this discipline, they will comment that it has always been a race against time. A Race against Time Generally, there are a lot of ground to cover in one semester, which means students will not …