摘要
该文提出了一种新型多模谐振器的小型化陷波超宽带滤波器。该新型多模谐振器在超宽带通带范围内有6个谐振模式,通过并联平行耦合馈线耦合到输入和输出端口,其中3个谐振模式是由高阻抗短截线加载扇形低阻抗截面产生,而剩余的谐振模式是通过在高阻抗线上加载开路枝节和在扇形低阻抗截面刻蚀圆形槽形成。同时,为了避免无线局域网(WLAN)频段和国际电信联盟(ITU)频段对超宽带系统的干扰,在扇形面加载开路短截线,引入中心频率为5.48 GHz和8.3 GHz的陷波。最后,设计制作了一种超宽带陷波滤波器,实测与仿真结果基本吻合。
A miniaturized notch ultra-wideband(UWB)filter with novel multimode resonators is proposed in this paper.The new multimode resonator has six resonant modes in UWB band range,which are coupled to the input and output ports through parallel-coupled feed lines.Three of the resonant modes are generated by a sector resonator loaded with a high-impedance short-cut line,while the remaining resonant modes are formed by loading an open-stub on a high-impedance line and etching the circle slot on the fan-shaped low impedance section.Meanwhile,in order to avoid the interference of wireless local area network(WLAN)band and International Telecommunication union(ITU)band on the UWB system,the notch band with center frequency of 5.48 GHz and 8.3 GHz is introduced by loading step open branch on the sector.Finally,an ultra-wideband notch filter is designed,analyzed and fabricated,and the measured results are in good agreement with the simulation results.
作者
高明明
李春晨
南敬昌
宋杨
GAO Mingming;LI Chunchen;NAN Jingchang;SONG Yang(School of Electrics and Information Engineering,Liaoning Technical University Huludao,Liaoning,125105;School of Information Science and Technology,Dalian Maritime University,Dalian Liaoning,116086)
出处
《电子科技大学学报》
EI
CAS
CSCD
北大核心
2021年第5期703-709,共7页
Journal of University of Electronic Science and Technology of China
基金
国家自然科学基金青年科学基金(61701211)
国家自然科学基金(61971210)
辽宁省特聘教授项目(551806006)。
关键词
带通滤波器
小型化
多模谐振器
陷波特性
超宽带
band-pass filter(BPF)
miniaturization
multi-mode resonator
notch band
ultrawideband(UWB)
