A novel ultra-wideband bandpass filter with a notched band

2015 ◽  
Author(s):  
Jinxin Li ◽  
Jun Xu ◽  
Tayeb A. Denidni ◽  
Qingsheng Zeng
Keyword(s):  
Bandpass Filter ◽  
Ultra Wideband ◽  
Notched Band

scholarly journals Compact quintuple notched-band UWB BPF with high selectivity and wide bandwidth

2020 ◽  
pp. 1-7
Author(s):  
Lei Bai ◽  
Yiqi Zhuang ◽  
Zhibin Zeng
Keyword(s):  
Closed Loop ◽  
High Selectivity ◽  
Bandpass Filter ◽  
Ultra Wideband ◽  
Wide Bandwidth ◽  
Fractal Curve ◽  
Transmission Zeros ◽  
Notched Band ◽  
X Band ◽  
Stepped Impedance Resonator

Abstract In this paper, a compact quintuple notched-band ultra-wideband bandpass filter with high selectivity and wide bandwidth is proposed. The filter adopts an approximate closed-loop C-shaped stepped impedance resonator to generate triple notched bands, and uses Hilbert fractal curve slit and L-shaped resonator to create single notched band, respectively. Multiple notched-band are centered at 5.29, 6.61, 7.92, 8.95, and 9.93 GHz to eliminate undesired interference from coexisting wireless services of WLAN, C-band, and X-band. Additionally, two transmission zeros are introduced to enhance the sharp skirt selectivity up to 0.944. This filter could exhibit high sharp selectivity and wider bandwidth simultaneously. The filter is fabricated on a RT/Duroid 5880 substrate (ɛ r = 2.2 and thickness = 0.787 mm) and measured to verify the simulation results. Both simulation and measurement are in well agreement, showing the good performance of the filter.

Planar microstrip UWB bandpass filter with quad notched bands and high selectivity

2021 ◽  
Vol 14 ◽  
Author(s):  
Mingming Gao ◽  
Keda Xu ◽  
Jingchang Nan ◽  
Li Wang
Keyword(s):  
High Selectivity ◽  
Bandpass Filter ◽  
The Other ◽  
Ultra Wideband ◽  
Defected Ground Structure ◽  
Ground Structure ◽  
Notched Band ◽  
Quad Notched Bands ◽  
Mode Resonator ◽  
Insufficient Number

Background: Aiming at solving the problems of large design size and insufficient number of notched band for traditional ultra-wideband (UWB) filters, a planar compact microstrip UWB bandpass filter (BPF) with quad notched bands and good selectivity is proposed using a modified multiple-mode resonator (MMR) and defected ground structure (DGS). Methods: The MMR consists of a stepped impedance stub above and two pairs of open-circuited stubs on both sides, which c an generate the passband and double notched bands of UWB filter, the other two notched bands are obtained by DGS. Results: The UWB filter with quad notched bands respectively centered at 3.9GHz, 5.7GHz, 7.9GHz, and 9.8GHz is fabricated and measured. Conclusion: The measured results are basically consistent with the simulated results, which proves the correctness and practicability of the UWB filter.

scholarly journals Miniaturized Planar Ultra-Wideband Bandpass Filter with Notched Band

2015 ◽  
Vol 03 (03) ◽  
pp. 100-105 ◽  
Author(s):  
Xueying Guo ◽  
Yunsheng Xu ◽  
Weidong Wang
Keyword(s):  
Bandpass Filter ◽  
Ultra Wideband ◽  
Notched Band

Small Ultra-Wideband (UWB) Bandpass Filter With Notched Band

2008 ◽  
Vol 18 (3) ◽  
pp. 176-178 ◽  
Author(s):  
Guo-Min Yang ◽  
R. Jin ◽  
C. Vittoria ◽  
V.G. Harris ◽  
N.X. Sun
Keyword(s):  
Bandpass Filter ◽  
Ultra Wideband ◽  
Notched Band
Sign in / Sign up

Export Citation Format

Share Document