Results 161 to 170 of about 4,744 (216)
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Reconfigurable matched bandstop filter
2011 IEEE International RF & Microwave Conference, 2011This paper demonstrates a reconfigurable matched bandstop filter. The filter is based on a lossy allpass network. The lossy allpass network demonstrates the concept and design of perfectly matched bandstop response with a perfect matched at all frequencies.
M. K. Zahari +3 more
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A Dielectric Resonator Bandstop Filter
MTT-S International Microwave Symposium Digest, 2005This paper presents a new analysis predicting accurately the external quality factor and scattering matrix parameters S/sub ij/ of the TE/sub 01p/ cylindrical resonator mode, coupled with a microstrip line for arbitrary locations of the resonator and the line, The results obtained are used to realize a Tchebyscheff bandstop filter.
P. Guillon, S. Mekerta, Y. Garault
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International Journal of Circuit Theory and Applications, 1994
AbstractA new prototype network is derived for a class of allpass networks from which, by a simple switch operation, a cascaded element bandstop filter results. an explicit solution for element values is obtained for the even‐ and odddegree solutions of arbitrary degree.
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AbstractA new prototype network is derived for a class of allpass networks from which, by a simple switch operation, a cascaded element bandstop filter results. an explicit solution for element values is obtained for the even‐ and odddegree solutions of arbitrary degree.
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A plasmonic MIM bandstop filter
2018 3rd International Conference on Microwave and Photonics (ICMAP), 2018This paper presents a bandstop wavelength filter designed by incorporating a rectangular groove in plasmonic MIM (Metal-Insulator-Metal) waveguide. The designed bandstop filter is simulated for generating a transmission notch at 1715 nm having a bandwidth of 130nm (from 1650 to 1790 nm).
M. Ravi Kumar +4 more
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Multiband matched bandstop filter
2010 IEEE Asia-Pacific Conference on Applied Electromagnetics (APACE), 2010This paper is to propose a multiband matched bandstop filter. A lossy resonator is proposed and it demonstrates the concept and design of a perfectly matched bandstop filter with a matched response‥ The design is based on a half wavelength (λ/2) and quarter wavelength (λ/4) resonator with gap coupling, parallel with an all-pass nominally-90°-phase ...
S Y M Hamzah +2 more
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Microwave and Optical Technology Letters, 2009
AbstractMost conventional transmission line filters are commensurate structures, with all elements that contribute to the filter performance of equal length. In this article, a structure is described that makes use of a series of elements that vary in length and spacing according to a logarithmic function; this results in a series of transmission zeros
E. S. Sithole, J. A. G. Malherbe
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AbstractMost conventional transmission line filters are commensurate structures, with all elements that contribute to the filter performance of equal length. In this article, a structure is described that makes use of a series of elements that vary in length and spacing according to a logarithmic function; this results in a series of transmission zeros
E. S. Sithole, J. A. G. Malherbe
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Applied Physics Letters, 1994
We propose and demonstrate, based on the concept of a microwave bandstop filter, two quantum wave bandstop filter structures. Both structures employ nanoscale gates in a heterojunction transistor to induce a quantum cavity connected by two one-dimensional wires.
Y. Wang, S. Y. Chou
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We propose and demonstrate, based on the concept of a microwave bandstop filter, two quantum wave bandstop filter structures. Both structures employ nanoscale gates in a heterojunction transistor to induce a quantum cavity connected by two one-dimensional wires.
Y. Wang, S. Y. Chou
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New modified microstrip bandstop filter with only one (first order) bandstop
2009 9th International Conference on Telecommunication in Modern Satellite, Cable, and Broadcasting Services, 2009In this paper, a new structure with only one (first order) bandstop is reported. A simple trapezoid shape of the microstrip line is introduced instead of the more complicated pattern. It obtains simple simulation, optimization and fabrication.
Nešić, Dušan, Kolundzija, Branko M.
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IEEE Transactions on Microwave Theory and Techniques, 1991
The synthesis of narrow bandstop filters with arbitrary stopband and equiripple passband responses is demonstrated. A new transformed frequency variable is used for iterative approximation with automatic bandwidth adjustment and prototype circuit realization. A five-resonator filter is used to illustrate the proposed method. >
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The synthesis of narrow bandstop filters with arbitrary stopband and equiripple passband responses is demonstrated. A new transformed frequency variable is used for iterative approximation with automatic bandwidth adjustment and prototype circuit realization. A five-resonator filter is used to illustrate the proposed method. >
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Novel compact microstrip interdigital bandstop filters
IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control, 2004A novel compact microstrip interdigital band-stop filter is designed and implemented. The structure is similar to that of an interdigital capacitor. The input port and output ports are connected to form the bandstop characteristic. This proposed filter with microstrip interdigital geometry not only exhibits good bandstop characteristics and a tunable ...
Ru-Yuan, Yang +4 more
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