Slotted microstrip circuit for improving loop stability of power amplifier chip and inter-stage matching network

• Main Authors: YU XUMING, LIN LANFENG, ZHOU YANFANG, XIAO WEI, TAO HONGQI, JIN HUI, XUE JING
• Format: Patent
• Language: Chinese; English
• Published: 27.10.2023
• Subjects: AMPLIFIERS; BASIC ELECTRONIC CIRCUITRY; ELECTRICITY

The invention discloses a slotted microstrip circuit for improving the loop stability of a power amplifier chip and an inter-stage matching network. The slotted micro-strip circuit comprises a first input port, a second input port, an isolation resistor, two connection micro-strips, a slotted micro-strip line, two micro-strips, two blocking capacitors, two drain bias micro-strips, two drain bias capacitors, a first output port and a second output port. The first input port and the second input port are connected through an isolation resistor, the first input port and the second input port are respectively connected with the slotted microstrip line after passing through the two connection microstrips, then one path is connected with the drain bias microstrip and the drain bias capacitor through the microstrips, and the other path is connected with the first output port and the second output port after passing through the blocking capacitor. The circuit is bilaterally symmetrical by taking the middle line of th