Results 181 to 190 of about 4,744 (216)

Wideband Bandstop Filter With Cross-Coupling

IEEE Transactions on Microwave Theory and Techniques, 2007
A general circuit configuration for cross-coupled wideband bandstop filters is proposed. The distinct filtering characteristics of this new type of transmission line filter are investigated theoretically and experimentally. It is shown that a ripple stopband can be created, leading to a quasi-elliptic function response that enhances the rejection ...
Hussein Shaman, Jia-Sheng Hong
openaire   +1 more source

A Planar Multiband Balanced Bandstop Filter

2018 IEEE MTT-S Latin America Microwave Conference (LAMC 2018), 2018
This paper introduces for the first time, a novel architecture of differential (balanced) bandstop filter (BSF), which can realize an arbitrary number of stopbands with arbitrary order. The design incorporates in-series cascade of K N-band sections in a branch line structure to realize a K-th order N-band balanced BSF transfer function. The common-mode
Dubari Borah, Thottam S. Kalkur
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HDGS bandstop filter design by FGA

2010 IEEE Youth Conference on Information, Computing and Telecommunications, 2010
A new fuzzy genetic algorithm (FGA) is developed to optimize Hilbert fractal defected ground structure (HDGS), designed bandstop filter. The genetic operators (crossover and mutation) are self-adaptively adjusted by fuzzy controller of the algorithm, so convergent character and global optimization are improved.
Dong Yan, null Xiaoping Zeng, null Kai Zhang   +2 more
openaire   +1 more source

Bandstop filters with extended upper passbands

IEEE Transactions on Microwave Theory and Techniques, 2006
Previous microwave distributed bandstop filters have had their second harmonic response centered at no more than three times the fundamental bandstop mid-band frequency, due to the use of quarter-wave resonators. This limitation has now been removed by the use of compound resonators having shorter electrical length.
R. Levy, R.V. Snyder, null Sanghoon Shin
openaire   +1 more source

Plasmonic Infrared Bandstop Reflective Filter

IEEE Journal of Selected Topics in Quantum Electronics, 2013
Various types of free-space plasmonic bandstop filters are reviewed. The plasmonic multilayer structure shows multiple localized surface plasmon (LSP) resonance modes with extraordinary high angle tolerance. Through modifying the plasmonic multilayer structure to a plasmonic T-shaped array, the multiple LSP modes can be suppressed.
Chih-Ming Wang, Din Ping Tsai
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Microstrip Rejecting Bandstop Filter

2022 IEEE International Multi-Conference on Engineering, Computer and Information Sciences (SIBIRCON), 2022
Aleksandr A. Leksikov, Aleksey O. Afonin, Aleksandr A. Aleksandrovsky, Andrey V. Ugryumov, Alexey M. Serzhantov, Ilya V. Govorun   +5 more
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A Novel Tuning Structure for Bandstop Filter

2006 IEEE MTT-S International Microwave Symposium Digest, 2006
This paper gives a novel structure design for bandstop filter. In narrow bandstop filter design, reactance slope is very critical and sensitive to the response, so we need to design suitable L and C which will resonate on the needed frequency and reactance slope.
Yun Liu, Li Yu, Wenbin Dou
openaire   +1 more source

Pseudo-Elliptic wideband harmonic bandstop filters

Eurocon 2013, 2013
Wideband bandstop filters that are employed as pseudo-lowpass filters with very high rates of cutoff are difficult to realize as planar structures. In this paper, the performance of a Pseudo-Elliptic wideband bandstop filter that employs harmonic stubs and unit elements, is described.
openaire   +1 more source

Bandstop Filter Formulas (Correspondence)

IEEE Transactions on Microwave Theory and Techniques, 1967
E.G. Cristal, L. Young, B.M. Schiffman, D.B. Weller   +3 more
openaire   +1 more source

Tunable bandstop filter using graphene in terahertz frequency band

AEU - International Journal of Electronics and Communications, 2022
exaly