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 …

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Android Touchstone Viewer

We are living in an era where accessibility is a big deal. The means to communicate information on the move and with ease is a huge advantage to businesses or entrepreneurs alike. One of the key platform to do this is mobile phones. As of February 2020, the amount of smartphone users in the world …

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Designing Interdigital Filter

There are many distributed line topology that can be used to design a filter. One of these is the Interdigital topology. The interdigital utilizes multiple cascading coupled lines arranged in such a way that the termination of each stub (or called resonator) is alternate between short and open circuit. As one of the planar transmission …

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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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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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