CAJ | 학술논문

提出了一种基于横向型信号干扰的新型多传输零点的宽带带阻滤波器。通过采用终端加载一段四分之一波长开路传输线枝节的弯折型反耦合线与两段对称的半波长传输线开路枝节相并联的方式，在滤波器的阻带内引入了五个传输零点，并在通带内产生了四个反射零点，从而获得了陡峭的过渡带特性、宽阻带特性以及较好的阻带抑制水平。最终设计的宽带带阻滤波器中心频率为3 GHz，20 dB衰减带宽可达106%。
제출료일충기우횡향형신호간우적신형다전수영점적관대대조려파기。통과채용종단가재일단사분지일파장개로전수선지절적만절형반우합선여량단대칭적반파장전수선개로지절상병련적방식，재려파기적조대내인입료오개전수영점，병재통대내산생료사개반사영점，종이획득료두초적과도대특성、관조대특성이급교호적조대억제수평。최종설계적관대대조려파기중심빈솔위3 GHz，20 dB쇠감대관가체106%。
Based on the horizontal signal interference, a novel wide-stopband bandstop filter with more transmission zeros performance was proposed and discussed. This filter was constructed by using a curved anti-coupled line with 1/4λopen transmission line stub loaded in terminal to parallel two symmetrical transmission lines of half wavelength open stub. The filter introduced five transmission zeros inside the stopband and four reflection zeros in the passband, which realized steep transition-band characteristic, wide stopband characteristic, and good stopband suppression. Results show that center frequency of the bandstop filter is 3 GHz and the 20 dB attenuation bandwidth is up to 106%.