Is 5G Dangerous for Health?

Recently in Penang, Malaysia, there was a protest against allegedly 5G Telco towers that were being set up inside residential areas. The concern was that with the new telco towers in so close proximity to the water supply and houses, it would pose a greater cancer risk to the residents in that area. The state …

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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 …

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5 Minutes Introduction to EM Wave

In the previous article, we mentioned that James Maxwell unified the electric and magnetic fields by combining the four Maxwell’s equations into a single wave equation which predicts the existence of the electromagnetic (EM) wave. The discovery of EM wave is a major breakthrough in modern physics because it let us understand the phenomena of …

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Transmission Line Filter Using Richard’s Transformation

Transmission Line (TL) In our previous article, we talked about the parasitic capacitance and inductance of circuits designed in lumped element. With majority of device and applications operating in high frequencies, especially with the introduction of 5G at millimeter wave, it is unfeasible to design filters using lumped elements. This is where transmission line type …

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