A Study of Matching Capacitor’s Influence on Power Amplifier Performance
In the design of a 15W power amplifier from 600MHz to 1000MHz, we analyze and compare the characteristics of the capacitors used in the matching circuits. We build a surface-mount capacitor model and put it into the amplifier simulation. By this way, we study the matching capacitor’s influence on the amplifier performance. The simulation result illustrates that there are great difference between using ideal capacitors and using actual capacitors. General purpose capacitors are not qualified for matching completely. RF ceramic surface-mount capacitors may also worsen the amplifier performance such as power out, gain and efficiency. The worsening degree increases evidently along with the working frequency.
RF ceramic capacitor equivalent serial resistance (ESR) power-added efficiency (PAE) power dissipation parasitic effect
Derui Fan Zhang Chen Zhuang Li
Nanjing Telecommunication Institute Nanjing, China
国际会议
北京
英文
1026-1028
2009-10-27（万方平台首次上网日期，不代表论文的发表时间）