CAJ | 학술논문

提出了一种中心频率可调的阶跃阻抗谐振器（Step impedance resonator, SIR）腔体带阻滤波器，通过调谐螺杆的长度来灵活调谐中心谐振频率。仿真结果显示，该带阻滤波器中心频率调谐范围为1.5~2.05GHz。与传统的开路短截线带阻滤波器相比，实现了带阻滤波器中心频率的自由调谐，提高了带阻滤波器灵活性，并将寄生阻带精确推移到4倍阻带中心频率处，增加了上通带宽度。
제출료일충중심빈솔가조적계약조항해진기（Step impedance resonator, SIR）강체대조려파기，통과조해라간적장도래령활조해중심해진빈솔。방진결과현시，해대조려파기중심빈솔조해범위위1.5~2.05GHz。여전통적개로단절선대조려파기상비，실현료대조려파기중심빈솔적자유조해，제고료대조려파기령활성，병장기생조대정학추이도4배조대중심빈솔처，증가료상통대관도。
A kind of tunable step impedance resonator (SIR)cavity bandstop filter is propoesd. Center resonance frequency can be flexiblely tuned by changing length of the tunning screw. The simulation results show that tuning range of center frequency of the bandstop filter is 1.5-2.05GHz. Compared with the traditional open stub bandstop filter, tunable bandstop filter has freely tuning center frequency, improving the flexibility of band-stop filter. The parasitic stopband appear precisely at 4 times the stopband center frequency, broadening the width of up passband.