Centre frequency and BW reconfigurable multi‐mode band‐pass filter with independently tunable TZs

2019 ◽  
Vol 13 (10) ◽  
pp. 1610-1619
Author(s):  
Nidhi Pandit ◽  
Nagendra Prasad Pathak
Keyword(s):  
Band Pass Filter ◽  
Pass Filter ◽  
Centre Frequency ◽  
Band Pass ◽  
Multi Mode

scholarly journals Tri-Band Band-Pass Filter Based on Multi-Mode Spoof Surface Plasmon Polaritons

IEEE Access ◽  
2020 ◽  
Vol 8 ◽  
pp. 14767-14776 ◽  
Author(s):  
Hongxin Zhao ◽  
Peng Zhou ◽  
Zhixia Xu ◽  
Shunli Li ◽  
Mei Yang ◽  
...  
Keyword(s):  
Surface Plasmon ◽  
Surface Plasmon Polaritons ◽  
Band Pass Filter ◽  
Pass Filter ◽  
Band Pass ◽  
Multi Mode ◽  
Plasmon Polaritons ◽  
Spoof Surface Plasmon Polaritons

scholarly journals Observation of flat chaos generation using an optical feedback multi-mode laser with a band-pass filter

2019 ◽  
Vol 27 (13) ◽  
pp. 17859 ◽  
Author(s):  
Pu Li ◽  
Qiang Cai ◽  
Jianguo Zhang ◽  
Bingjie Xu ◽  
Yiming Liu ◽  
...  
Keyword(s):  
Optical Feedback ◽  
Band Pass Filter ◽  
Pass Filter ◽  
Mode Laser ◽  
Band Pass ◽  
Multi Mode

A compact UWB band-pass filter with a notch band using multi-mode stub-loaded resonators (MM-SLR)

2018 ◽  
Vol 10 (2) ◽  
pp. 227-233
Author(s):  
Gholamreza Karimi ◽  
Fatemeh Javidan ◽  
Amir Hossein Salehi
Keyword(s):  
Stop Band ◽  
Ultra Wideband ◽  
Pass Band ◽  
Band Pass Filter ◽  
Pass Filter ◽  
Notch Band ◽  
Compact Size ◽  
Mathematical Formulas ◽  
Band Pass ◽  
Multi Mode

AbstractIn this paper, an ultra-wideband (UWB) band-pass filter (BPF) with a sharp notch band is presented. The UWB BPF consists of modified elliptical-ring and multi-mode stub-loaded resonator (MM-SLR). By adding the asymmetric tight coupled lines resonator via input/output (I/O) lines, it can be achieved UWB band-pass response. With adding two bends to the middle resonator, a notch band at 6.86 GHz is created, so that it can be controlled using the mathematical formulas (MF). In the meantime, the equivalent circuit of the middle resonator is obtained using L–C analysis. Measured results of fabricated filter have the advantage such as ultra-wide pass band (flandfHof the defined UWB pass band are 3.776 and 10.42 GHz, which satisfy the requirements of FCC-specified UWB limits), compact size, low insertion loss <0.65 dB and the stop band of the proposed filter is from 11.1 to 16.32 GHz with attenuation of −39.8 to −42.14 dB, respectively. The proposed UWB filter is realized using the substrate with dielectric constant of 2.2 and substrate height of 0.787 mm. Experimental verification is provided and good agreement has been found between simulation and measurement results.

Spectral flatness factor and ‘intermittency’ in turbulence and in non-linear noise

1961 ◽  
Vol 10 (3) ◽  
pp. 366-370 ◽  
Author(s):  
D. A. Kennedy ◽  
S. Corrsin
Keyword(s):  
Shear Layer ◽  
Gaussian Noise ◽  
Band Pass Filter ◽  
Noise Band ◽  
Free Shear Layer ◽  
Pass Filter ◽  
Centre Frequency ◽  
Non Linear ◽  
Band Pass ◽  
Flatness Factor

The flatness factor F of the signal transmitted through a band-pass filter has been measured for the turbulence in a free shear layer and for a squared Gaussian noise. They both show flatness factor increasing with centre frequency fc. In the turbulence, band-passed signals look intermittent and have larger F than the full signal, but in the squared noise, band-passed signals all have smaller F than the full signal although they look more intermittent.It is shown analytically that the derivative of a smoothed, squared Gaussian noise may have flatness factor either greater or less than the undifferentiated signal.

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