Please use this identifier to cite or link to this item: http://localhost/handle/Hannan/650922
Title: Fully Adaptive Multiband Bandstop Filtering Sections and Their Application to Multifunctional Components
Authors: Dimitra Psychogiou;Roberto Gómez-García;Dimitrios Peroulis
subject: notch filter|multifunctional circuit|power divider|bandstop filter (BSF)|multiband filter|Bandpass filter (BPF)|reconfigurable filter|*wideband filter|tunable filter
Year: 2016
Publisher: IEEE
Abstract: An original RF design approach for the realization of fully reconfigurable planar multiband bandstop filters (BSFs) is reported. The engineered RF filtering topology allows independent control of its stopbands in terms of center frequency and bandwidth. It exploits the in-series cascade of K spectrally agile N-notch filtering cells that are connected through K - 1 static impedance inverters to realize an N-band filtering transfer function with Kth-order stopbands. Each of these multinotch cells is formed by N tunable resonators-center-frequency control-that interact with the same nonresonating node by means of different variable couplings-bandwidth control. Additional features of this tune-all multiband BSF architecture when compared with related prior-art devices are: 1) scalability to the synthesis of an arbitrary number of stopbands; 2) notch-spectral-merging capability into wider eliminated bands of the same order, which equivalently allows the intrinsic control, i.e., without RF switches, of the amount of active rejected bands; and 3) smaller physical size. The coupling-matrix modeling of the conceived multiband BSF scheme is presented. Moreover, its cointegration with other RF analog-processing actions in multifunctional components, such as bandpass filtering and power division, is investigated. For experimental-validation purposes, three UHF-band mechanically reconfigurable microstrip prototypes are developed and tested. They correspond to a dual-notch filter, a wideband bandpass filter with embedded notches in its tunable passband, and a Wilkinson-type power divider with inserted stopbands for dynamic multi-interference mitigation.
URI: http://localhost/handle/Hannan/135647
http://localhost/handle/Hannan/650922
ISSN: 0018-9480
1557-9670
volume: 64
issue: 12
Appears in Collections:2016

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Title: Fully Adaptive Multiband Bandstop Filtering Sections and Their Application to Multifunctional Components
Authors: Dimitra Psychogiou;Roberto Gómez-García;Dimitrios Peroulis
subject: notch filter|multifunctional circuit|power divider|bandstop filter (BSF)|multiband filter|Bandpass filter (BPF)|reconfigurable filter|*wideband filter|tunable filter
Year: 2016
Publisher: IEEE
Abstract: An original RF design approach for the realization of fully reconfigurable planar multiband bandstop filters (BSFs) is reported. The engineered RF filtering topology allows independent control of its stopbands in terms of center frequency and bandwidth. It exploits the in-series cascade of K spectrally agile N-notch filtering cells that are connected through K - 1 static impedance inverters to realize an N-band filtering transfer function with Kth-order stopbands. Each of these multinotch cells is formed by N tunable resonators-center-frequency control-that interact with the same nonresonating node by means of different variable couplings-bandwidth control. Additional features of this tune-all multiband BSF architecture when compared with related prior-art devices are: 1) scalability to the synthesis of an arbitrary number of stopbands; 2) notch-spectral-merging capability into wider eliminated bands of the same order, which equivalently allows the intrinsic control, i.e., without RF switches, of the amount of active rejected bands; and 3) smaller physical size. The coupling-matrix modeling of the conceived multiband BSF scheme is presented. Moreover, its cointegration with other RF analog-processing actions in multifunctional components, such as bandpass filtering and power division, is investigated. For experimental-validation purposes, three UHF-band mechanically reconfigurable microstrip prototypes are developed and tested. They correspond to a dual-notch filter, a wideband bandpass filter with embedded notches in its tunable passband, and a Wilkinson-type power divider with inserted stopbands for dynamic multi-interference mitigation.
URI: http://localhost/handle/Hannan/135647
http://localhost/handle/Hannan/650922
ISSN: 0018-9480
1557-9670
volume: 64
issue: 12
Appears in Collections:2016

Files in This Item:
File Description SizeFormat 
7737004.pdf3.57 MBAdobe PDFThumbnail
Preview File
Title: Fully Adaptive Multiband Bandstop Filtering Sections and Their Application to Multifunctional Components
Authors: Dimitra Psychogiou;Roberto Gómez-García;Dimitrios Peroulis
subject: notch filter|multifunctional circuit|power divider|bandstop filter (BSF)|multiband filter|Bandpass filter (BPF)|reconfigurable filter|*wideband filter|tunable filter
Year: 2016
Publisher: IEEE
Abstract: An original RF design approach for the realization of fully reconfigurable planar multiband bandstop filters (BSFs) is reported. The engineered RF filtering topology allows independent control of its stopbands in terms of center frequency and bandwidth. It exploits the in-series cascade of K spectrally agile N-notch filtering cells that are connected through K - 1 static impedance inverters to realize an N-band filtering transfer function with Kth-order stopbands. Each of these multinotch cells is formed by N tunable resonators-center-frequency control-that interact with the same nonresonating node by means of different variable couplings-bandwidth control. Additional features of this tune-all multiband BSF architecture when compared with related prior-art devices are: 1) scalability to the synthesis of an arbitrary number of stopbands; 2) notch-spectral-merging capability into wider eliminated bands of the same order, which equivalently allows the intrinsic control, i.e., without RF switches, of the amount of active rejected bands; and 3) smaller physical size. The coupling-matrix modeling of the conceived multiband BSF scheme is presented. Moreover, its cointegration with other RF analog-processing actions in multifunctional components, such as bandpass filtering and power division, is investigated. For experimental-validation purposes, three UHF-band mechanically reconfigurable microstrip prototypes are developed and tested. They correspond to a dual-notch filter, a wideband bandpass filter with embedded notches in its tunable passband, and a Wilkinson-type power divider with inserted stopbands for dynamic multi-interference mitigation.
URI: http://localhost/handle/Hannan/135647
http://localhost/handle/Hannan/650922
ISSN: 0018-9480
1557-9670
volume: 64
issue: 12
Appears in Collections:2016

Files in This Item:
File Description SizeFormat 
7737004.pdf3.57 MBAdobe PDFThumbnail
Preview File