High selectivity UWB bandpass filter with controllable bandwidth of dual notch bands

A technique to implement and control the bandwidth of notch bands in an ultra-wideband (UWB) bandpass filter (BPF) based on signal superposition is described. The filter is realised by employing two wideband BPFs in a parallel configuration to establish two signal paths between input/output ports. T...

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Bibliographic Details
Published in:Electronics letters 2014-09, Vol.50 (19), p.1358-1359
Main Authors: Mirzaee, M, Noghanian, S, Virdee, B.S
Format: Article
Language:English
Subjects:
Bandpass filters
Bands
Bandwidth
bandwidth controllability
band‐pass filters
compact filter design
dual‐notch bands
FCC
federal communication commission
high‐selectivity UWB bandpass filter
input‐output ports
Microwave technology
network synthesis
notch filters
Notches
notch‐band filter design
Ports
quasi‐elliptical response
signal superposition
Stability
transversal signal interaction
Ultrawideband
ultrawideband BPF
UWB spectrum
Wideband
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Description
Summary:A technique to implement and control the bandwidth of notch bands in an ultra-wideband (UWB) bandpass filter (BPF) based on signal superposition is described. The filter is realised by employing two wideband BPFs in a parallel configuration to establish two signal paths between input/output ports. The proposed technique can substantially increase the bandwidth of the notch band by ∼370% in comparison with the notch-band filter designs based on transversal signal interaction. The proposed filter exhibits a quasi-elliptical response over the span of the UWB spectrum defined by the Federal Communication Commission. The compact filter design has a size of 88.92 mm2.
ISSN:0013-5194
1350-911X
1350-911X
DOI:10.1049/el.2014.2336