Transformer power amplifier

摘要

The present disclosure relates, according to some embodiments, to a transformer power amplifier that allows for improved Q values and increased efficiency by reducing the capacitance coupling effect between metal layers and/or sidewalls of the same layer through carefully designed conductor structures in primary and secondary loops. A transformer power amplifier comprises a substrate, a conductor, a circular coil, a first amplifier, and a second amplifier, the conductor and the circular coil disposed on the substrate. A circular coil has a first input terminal and a second input terminal, in which the first input terminal and the second input terminal are spaced apart and opposite each other to form an opening. A first amplifier is connected to a first input terminal for receiving a first signal and a second amplifier is connected to a second input terminal for receiving a second signal, wherein the first signal and the second signal are differential signals.

主权项

1. A transformer power amplifier, comprising:
a substrate; a conductor, disposed on the substrate, and having a first elongated portion; a first conductor wiring body and a second conductor wiring body located near one side of the first elongated portion, the first conductor wiring body having a first input terminal and a second input terminal, the second conductor wiring body having a third input terminal and a fourth input terminal, wherein the first input terminal and the third input terminal are spaced apart and opposite each other, the second input terminal and the fourth input terminal are spaced apart and opposite each other, the first conductor wiring body and the second conductor wiring body forming a circular coil with two openings; a first amplifier and a second amplifier electrically connected to the first input terminal and the second input terminal respectively, the first amplifier receiving a first signal and the second amplifier receiving a second signal, wherein the first signal and the second signal are a pair of differential signals; and a third amplifier and a fourth amplifier electrically connected to the third input terminal and the fourth input terminal respectively, the third amplifier receiving the second signal and the fourth amplifier receiving the first signal to form an alternating current on the circular coil and electromagnetically coupled to the conductor.