Band-Notched UWB BPF Design Using Parasitic Coupled Line

A compact microstrip ultrawideband (UWB) bandpass filter (BPF) with a narrow notched band in the UWB passband is presented. The narrow notched band was introduced by using a new technique that involves embedding a parasitic coupled line to the UWB BPF in order to reject any undesired existing radio...

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Bibliographic Details
Published in:IEEE microwave and wireless components letters 2010-08, Vol.20 (8), p.444-446
Main Authors: Pirani, S, Nourinia, J, Ghobadi, C
Format: Article
Language:English
Subjects:
Applied sciences
Band pass filters
Banded structure
Bandpass filter (BPF)
Circuit properties
Couplings
Design engineering
Electric, optical and optoelectronic circuits
Electronic circuits
Electronics
Exact sciences and technology
FCC
Frequency
Frequency filters
Impedance
Interference immunity
Local area networks
Microwave circuits, microwave integrated circuits, microwave transmission lines, submillimeter wave circuits
Microwaves
multimode resonator (MMR)
notched band
Oscillators, resonators, synthetizers
parasitic coupled line
Passband
Radio signals
Resonator filters
Simulation
Structural engineering
Transmission lines
Ultrawideband
Wireless communication
Wireless LAN
wireless local area network (WLAN)
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Summary:A compact microstrip ultrawideband (UWB) bandpass filter (BPF) with a narrow notched band in the UWB passband is presented. The narrow notched band was introduced by using a new technique that involves embedding a parasitic coupled line to the UWB BPF in order to reject any undesired existing radio signal that may interfere with the determined UWB passband. The notched band can be easily generated and set at any desired frequency by varying the structural parameters of parasitic coupled line. The design is successfully realized in theory and verified by electromagnetic (EM) simulation and the experiment. This filter can be integrated in UWB radio systems and efficiently enhance the interference immunity from undesired signals such as wireless local area network (WLAN).
ISSN:1531-1309
2771-957X
1558-1764
2771-9588
DOI:10.1109/LMWC.2010.2049830