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In this letter, a high-efficiency filter-integrated class-F power amplifier (PA) is presented. High-Q-factor dielectric resonator (DR) filter is employed as the output matching network of the class-F ...

In this article, a novel design method of dual-band and dual-state (DBDS) Doherty power amplifier (DPA) is proposed. Considering the actual parasitic parameters, the DPA can be designed by using the ...

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How Do Hearing Aids Work? Hearing aids work by amplifying sound through a three-part system: The microphone receives sound and converts it into a digital signal. The amplifier increases the strength ...