Notched UWB filter using exponential tapered impedance line stub loaded microstrip resonator
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TLDR
In this paper, two ultra wideband (UWB) filters having the fractional bandwidth >120% are designed, analysed and fabricated, and a good agreement between the measured and predicted results is achieved, which validate the filter designs.Abstract:
In this study, two ultra-wideband (UWB) filters having the fractional bandwidth >120% are designed, analysed and fabricated. The first filter is designed with three quarter-wavelength short-circuited stubs and second by using exponential tapered impedance line stub loaded microstrip resonator. The first filter consists of five transmission poles within the passband. The second filter with tapered inductive loading on quarter-wavelength high impedance line exhibits a sharp notch stopband around 5.5 GHz, to suppress the interference from IEEE 302.11a WLAN band signals with an attenuation level >30 dB. A good agreement between the measured and predicted results is achieved, which validate the authors’ filter designs.read more
Citations
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References
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Book
Microstrip filters for RF/microwave applications
TL;DR: In this paper, the authors present a general framework for coupling matrix for Coupled Resonator Filters with short-circuited Stubs (UWB) and Cascaded Quadruplet (CQ) filters.
Journal ArticleDOI
Ultra-wideband (UWB) bandpass filters using multiple-mode resonator
Lei Zhu,Sheng Sun,W. Menzel +2 more
TL;DR: In this article, a microstrip-line ultra-wideband (UWB) bandpass filter is proposed and implemented using a multiplemode resonator (MMR), aiming at transmitting the signals in the whole UWB passband of 3.1-10.6GHz.
Journal ArticleDOI
Ultra-Wideband (UWB) Bandpass Filter With Embedded Band Notch Structures
Hussein Shaman,Jia-Sheng Hong +1 more
TL;DR: In this article, a compact ultra wideband (UWB) bandpass filter with narrow notched (rejection) band in the UWB passband realized on a microstrip line is implemented and presented for use in wireless communication applications within the unlicensed UWB range set by the Federal Communications Commission (FCC).
Journal ArticleDOI
Small Ultra-Wideband (UWB) Bandpass Filter With Notched Band
TL;DR: In this article, a compact ultra wideband (UWB) bandpass filter with notched band has been proposed and implemented, where three pairs of tapered defected ground structures (DGS) are formed to assign their transmission zeros towards the out of band signal, thereby suppressing the spurious passband.
Proceedings ArticleDOI
Aperture compensation technique for innovative design of ultra-broadband microstrip bandpass filter
Lei Zhu,Huizheng Bu,Ke Wu +2 more
TL;DR: In this paper, aperture compensation technique is proposed for the enhancement of coupling strength in the parallel-coupled microstrip line (PCML) through applying a so-called "short-open calibration" procedure in the full-wave MoM algorithm.