Articles with "ultra wideband" as a keyword



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Ultrathin Single Layer Metasurfaces with Ultra-Wideband Operation for Both Transmission and Reflection.

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Published in 2020 at "Advanced materials"

DOI: 10.1002/adma.201907308

Abstract: Artificially engineered metasurfaces provide extraordinary wave control at the subwavelength scale. However, metasurfaces proposed so far suffer due to limited bandwidths. In this paper, extremely thin metasurfaces made of single metallic layer is experimentally presented… read more here.

Keywords: transmission reflection; layer; wideband operation; operation ... See more keywords
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Real-time 2.5 Gbit/s ultra-wideband transmission using a Schottky diode-based envelope detector

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Published in 2017 at "Microwave and Optical Technology Letters"

DOI: 10.1002/mop.30352

Abstract: detector DTU Orbit (05/10/2019) Real-time 2.5 Gbit/s ultra-wideband transmission using a Schottky diode-based envelope detector An experimental demonstration of 2.5 Gbit/s real-time ultra-wideband transmission is presented, using a Schottky diodebased envelope detector fabricated ad-hoc using… read more here.

Keywords: real time; transmission; detector; ultra wideband ... See more keywords
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Multislot type ultra‐wideband electromagnetic bandgap structure for simultaneous switching noise mitigation

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Published in 2019 at "Microwave and Optical Technology Letters"

DOI: 10.1002/mop.32040

Abstract: A compact and cost effective multislot type electromagnetic bandgap (EBG) structure for high noise isolation in ultra‐wideband applications is proposed. The proposed multislot type structure is a hybrid EBG structure with multislot in an alternating… read more here.

Keywords: ultra wideband; multislot type; structure; noise ... See more keywords
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A new type of compact ultra‐wideband planar fractal antenna with WLAN band rejection

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Published in 2020 at "Microwave and Optical Technology Letters"

DOI: 10.1002/mop.32304

Abstract: A new type of fractal‐shaped microstrip patch antenna for ultra‐wideband (UWB) applications and with sufficient rejection in the WLAN band is presented. The radiating patch is placed on a 1.6 mm thick low‐cost FR‐4 epoxy substrate… read more here.

Keywords: antenna; ultra wideband; wlan band; rejection ... See more keywords
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A miniaturized low‐cost microstrip‐to‐coplanar waveguide transition‐based ultra‐wideband bandpass filter with multiple transmission zeros

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Published in 2020 at "Microwave and Optical Technology Letters"

DOI: 10.1002/mop.32482

Abstract: This article presents a dual notched ultra‐wideband (UWB) bandpass filter (BPF) with good frequency characteristics realized on a low‐cost dielectric. The proposed structure is based on the surface‐to‐surface transition technology, with microstrip lines aligned face‐to‐face… read more here.

Keywords: ultra wideband; low cost; filter; coplanar waveguide ... See more keywords
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Ultra‐wideband multi‐section Wilkinson power divider

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Published in 2020 at "Microwave and Optical Technology Letters"

DOI: 10.1002/mop.32562

Abstract: A multi‐section ultra‐wideband Wilkinson power divider is presented in this article. The proposed device is developed based on a coplanar waveguide (CPW) to coplanar strip (CPS) transition, which is realized on a two‐layer printed circuit… read more here.

Keywords: ultra wideband; multi section; power divider; power ... See more keywords
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A miniaturized ultra‐wideband antenna using “modified” rectangular patch with rejection in WiMAX and WLAN bands

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Published in 2020 at "Microwave and Optical Technology Letters"

DOI: 10.1002/mop.32732

Abstract: A new miniaturized ultra‐wideband antenna with sufficient dual‐band rejection in WiMAX and WLAN bands is reported. The antenna uses the conventional rectangular patch radiator with built‐in sectorial and Inverted‐U slots to achieve the required dual‐band… read more here.

Keywords: wideband; miniaturized ultra; ultra wideband; wideband antenna ... See more keywords
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Low-power ultra-wideband LNA employing CS–CD current-reuse and gain-controller resistor technique in 0.180-μm CMOS technology

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Published in 2019 at "Analog Integrated Circuits and Signal Processing"

DOI: 10.1007/s10470-019-01519-6

Abstract: In this paper, a low-power ultra-wideband low noise amplifier (LNA) is presented. The combination of dual resonance network and current-bleeding technique offers high and flat voltage gain and low noise figure (NF), and also, the… read more here.

Keywords: gain controller; power ultra; ultra wideband; gain ... See more keywords
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Planar Lens–Based Ultra-Wideband Dielectric Rod Waveguide Antenna for Tunable THz and Sub-THz Photomixer Sources

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Published in 2019 at "Journal of Infrared, Millimeter, and Terahertz Waves"

DOI: 10.1007/s10762-019-00612-1

Abstract: In this manuscript, the use of dielectric rod waveguide antenna (DRW) with an embedded planar lens is proposed as a highly directional alternative to an electrically large hyper-hemispheric silicon lens for emission at millimeter and… read more here.

Keywords: planar lens; thz; rod waveguide; dielectric rod ... See more keywords
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Optimum design of a new ultra-wideband LNA using heuristic multiobjective optimization

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Published in 2020 at "Journal of Computational Electronics"

DOI: 10.1007/s10825-020-01513-6

Abstract: This paper presents an optimum design of an ultra-wideband (UWB) 2.5–10.5-GHz low-noise amplifier (LNA) in 180-nm and 65-nm radiofrequency (RF)-complementary metal–oxide–semiconductor (CMOS) technology. A novel input matching network employing resistive–inductive feedback and a noise-canceling technique… read more here.

Keywords: using heuristic; heuristic multiobjective; lna; optimization ... See more keywords
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LOS/NLOS channel identification for improved localization in wireless ultra-wideband networks

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Published in 2019 at "Telecommunication Systems"

DOI: 10.1007/s11235-019-00572-w

Abstract: The paper presents techniques for line-of-sight (LOS) and non-line-of-sight (NLOS) link identification in ultra-wideband wireless networks for the purpose of improving mobile positioning reliability in indoor and outdoor environments. Statistical hypothesis testing is applied by… read more here.

Keywords: los nlos; ultra wideband; identification; wireless ... See more keywords