摘要
本文从微带耦合线的特性出发,提出微带滤波器设计公式应考虑带边频率的必要性,并介绍了这种设计方法的设计公式和设计步骤。通过对一个4GHz 带通滤波器的设计和制作,讨论了微波微带滤波器的调谐问题、△l 的修正问题和微带线的 Q值问题。指出了设计制作高质量微带滤波器应注意的问题。
In this paper,according to the characteristic of coupled pairs of microstrip line, it is necessity that side frequency be considred in the design of a microstrip line filter. A 4 GHz microwave bandpass filter is designed and fabricated.Tuning microstrip filter,△L amended and Q-figure of microstrip line are discussed.It is suggested that several problems be considered in the design of a high puality microtrip line filter.
关键词
带通滤波器
耦合
微带线
Q值
bandpass filter
microstrip line
coupled pairs of microstrip line
Q-figure of microstrip line
