公开(公告)号：US20230327611A1

公开(公告)日：2023-10-12

申请号：US17875465

申请日：2022-07-28

Applicant: University of Electronic Science and Technology of China

Inventor： Yuehang XU ,  Bowen TANG

IPC: H03F1/42 ,  H03F3/24 ,  H03F1/32

CPC classification number: H03F1/42 ,  H03F3/245 ,  H03F1/32 ,  H03F2200/36 ,  H03F2200/451

Abstract: An ultra-wideband power amplifier includes a preamplifier circuit and a post amplifier circuit. The preamplifier circuit includes a first DC blocking capacitor C1, a first decoupling capacitor C2, a second decoupling capacitor C3, a stabilizing resistor Rin, a first AC blocking resistor RG1, a first input inductor L1, a second input inductor L2, an output inductor L3, a first input microstrip line MLIN1, a second input microstrip line MLIN2, an output microstrip line MLIN3, and a first transistor Q1. A first end of the first DC blocking capacitor C1 acts as an input terminal of the preamplifier circuit, and a second end of the first DC blocking capacitor C1 is connected to the stabilizing resistor Rin, the first input inductor L1, the first input microstrip line MLIN1, and a gate electrode of the first transistor Q1 sequentially. One end of the first decoupling capacitor C2 is grounded.