Will 5G be Available to Us in 2020 and should We Care?

In the past, being able to communicate in far distance seems to be magic. Now this “magic” is actualized in the form of wireless communication. The development of the first analogue communication, which is called the first generation (1G) is considered a quantum leap in the progress of wireless technology. As the years progress, researchers …

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Coupled Lines Directional Coupler

Directional couplers are four-port circuits consists of through, isolation, coupling ports. An ideal directional coupler is lossless and has all ports are matched. One of the most common couplers is formed by a pair of coupled transmission lines. When two unshielded transmission lines are in close proximity, power can be coupled from one line to …

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Single Mode Filter

Microwave and RF filters are of immeasurable importance to wireless equipment because they are always located between the input and output stages of the RF and microwave active circuits. Microstrip planar filters are preferred for integration in low-power transceiver systems because they possess the properties of compact size, flexible layout, low cost, and easy fabrication …

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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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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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Designing Lowpass Lumped Element Filter

What are filters? Water filters? Usually that's the confusion by laymen when talking about filters. Electronic filters are components in an electronic system that is used for isolating a bandwidth of frequency either to be used as a channel for data throughput or noise removal. Ever wonder why a radio can have so many stations? …

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