A Miniaturized UWB Filter with Notch Bands Based on Novel Multi-Mode Resonator

被引：0
|
作者：
Gao M. [1 ,2 ]
Li C. [1 ]
Nan J. [1 ]
Song Y. [1 ]
机构：
[1] School of Electrics and Information Engineering, Liaoning Technical University, Huludao
[2] School of Information Science and Technology, Dalian Maritime University, Dalian
来源：
Dianzi Keji Daxue Xuebao/Journal of the University of Electronic Science and Technology of China | 2021年 / 50卷 / 05期
关键词：
Band-pass filter(BPF); Miniaturization; Multi-mode resonator; Notch band; Ultra-wideband(UWB);
D O I：
10.12178/1001-0548.2021129
中图分类号：
学科分类号：
摘要：
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. © 2021, Editorial Board of Journal of the University of Electronic Science and Technology of China. All right reserved.
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页码：703 / 709
页数：6
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