Wide-bandwidth, sharp-cutoff bandpass filter for WDM transmission

1985 ◽  
Vol 21 (20) ◽  
pp. 915 ◽  
Author(s):  
J. Minowa ◽  
Y. Fujii
Keyword(s):  
Bandpass Filter ◽  
Wide Bandwidth ◽  
Wdm Transmission ◽  
Sharp Cutoff

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.

scholarly journals Design of Dual-Band Bandpass Filter With Simultaneous Narrow- and Wide-Bandwidth and a Wide Stopband

IEEE Access ◽  
2019 ◽  
Vol 7 ◽  
pp. 147694-147703 ◽  
Author(s):  
Min-Hang Weng ◽  
Siang-Wen Lan ◽  
Shoou-Jinn Chang ◽  
Ru-Yuan Yang
Keyword(s):  
Bandpass Filter ◽  
Dual Band ◽  
Wide Bandwidth

scholarly journals Compact parallel coupled-line bandpass filter with wide bandwidth and suppression of spurious

2009 ◽  
Vol 51 (8) ◽  
pp. 1795-1800 ◽  
Author(s):  
Kuo-Sheng Chin ◽  
Yi-Ping Chen ◽  
Ken-Min Lin ◽  
Yi-Chyun Chiang
Keyword(s):  
Bandpass Filter ◽  
Wide Bandwidth ◽  
Coupled Line

Wide-bandwidth and long-distance WDM transmission using highly gain-flattened hybrid amplifier

1999 ◽  
Vol 11 (7) ◽  
pp. 886-888 ◽  
Author(s):  
S. Kawai ◽  
H. Masuda ◽  
K. Suzuki ◽  
K. Aida
Keyword(s):  
Long Distance ◽  
Wide Bandwidth ◽  
Wdm Transmission
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