In high-efficiency Class E amplifiers matching circuits are commonly used to transform usually constant load resistance to nominal or off-nominal resistance of the amplifier to ensure its ZVS ...

To improve efficiencies in lower-power modes of a multi-mode class-AB power amplifier (PA), a discrete resizing technique is introduced in combination with a parallel-combining transformer (PCT). The ...

Hepatitis B virus (HBV) infection remains a major global health concern, necessitating the development of sensitive and reliable diagnostic methods. In this study, we propose a novel approach to ...