Magnetic Recording: Magnetic‐Pole Flip by Millimeter Wave (Adv. Mater. 48/2020)
Sign Up to like & getrecommendations! Published in 2020 at "Advanced Materials"
DOI: 10.1002/adma.202070361
Abstract: recording methodology, “focused-millimeter-wave-assisted magnetic recording (F-MIMR)”, to drastically increase the recording density of magnetic tapes. Demonstrations are performed using magnetic films based on a series of epsilon iron oxide, ε-Fe2O3. Irradiation of the focused millimeter… read more here.
Keywords: millimeter wave; magnetic recording; magnetic pole; pole flip ... See more keywords
Liquid Crystals for Advanced Smart Devices with Microwave and Millimeter-Wave Applications: Recent Progress for Next-generation Communications.
Sign Up to like & getrecommendations! Published in 2023 at "Advanced materials"
DOI: 10.1002/adma.202302474
Abstract: Liquid crystals (LCs) technology have a well-established history of applications in visible light, particularly in the display industry. However, with the rapid growth in communication technology, LCs have become a topic of current interest for… read more here.
Keywords: advanced smart; liquid crystals; microwave millimeter; millimeter wave ... See more keywords
First noncontact millimeter‐wave radar measurement of heart rate in great apes: Validation in chimpanzees (Pan troglodytes)
Sign Up to like & getrecommendations! Published in 2024 at "American Journal of Primatology"
DOI: 10.1002/ajp.23633
Abstract: Heart rate is a crucial vital sign and a valuable indicator for assessing the physical and psychological condition of a target animal. Heart rate contributes to (1) fundamental information for cognitive research, (2) an indicator… read more here.
Keywords: heart; wave radar; millimeter wave; heart rate ... See more keywords
Photon Generation Scheme of 32‐Fold Millimeter‐Wave Signal Based on Mach‐Zehnder Modulator
Sign Up to like & getrecommendations! Published in 2024 at "Annalen der Physik"
DOI: 10.1002/andp.202300360
Abstract: This paper proposes a 32‐tupling frequency millimeter‐wave (MMW) filter‐free system based on four Mach‐Zehnder Modulators (MZM) connected in parallel and cascaded with a simple radio‐fiber (RoF) link structure. The four MZMs are all at the… read more here.
Keywords: order optical; mach zehnder; order; millimeter wave ... See more keywords
Effect of dielectric materials on integrated lens antenna for millimeter wave applications
Sign Up to like & getrecommendations! Published in 2019 at "Microwave and Optical Technology Letters"
DOI: 10.1002/mop.31676
Abstract: The effect of different dielectric materials on the performance of integrated lens antenna (ILA) operating in millimeter wave region (60 GHz) is presented. The ILA is composed of a rectangular microstrip antenna and an extended hemispherical… read more here.
Keywords: millimeter wave; extended hemispherical; integrated lens; effect ... See more keywords
Millimeter‐wave microstrip patch antenna using vertically coupled split ring metaplate for gain enhancement
Sign Up to like & getrecommendations! Published in 2019 at "Microwave and Optical Technology Letters"
DOI: 10.1002/mop.31908
Abstract: This article presents a millimeter‐wave (mmWave) microstrip patch antenna (MPA) with a vertically coupled split ring metaplate (VCSRM). The narrow bandwidth and low gain of MPA are improved using VCSRM by periodically arranging split rings… read more here.
Keywords: millimeter wave; antenna; split; gain ... See more keywords
An inline waveguide‐to‐microstrip transition for wideband millimeter‐wave applications
Sign Up to like & getrecommendations! Published in 2019 at "Microwave and Optical Technology Letters"
DOI: 10.1002/mop.32199
Abstract: A low‐cost wide Ka‐band inline waveguide‐to‐microstrip transition is proposed, which facilities the integration of planar transmission lines with waveguide structures. By employing a circular patch above a wedge‐shaped cavity, the quasi‐TEM mode wave in the… read more here.
Keywords: millimeter wave; waveguide microstrip; inline waveguide; microstrip transition ... See more keywords
Wideband compact power amplifier based on novel spatial power combining technique for millimeter‐wave applications
Sign Up to like & getrecommendations! Published in 2020 at "Microwave and Optical Technology Letters"
DOI: 10.1002/mop.32594
Abstract: Based on spatial power combining technique using a novel waveguide‐to‐microstrip transition, this article proposes a wideband compact double‐layer two‐level power amplifier composed by six commercial power amplifier chips for millimeter‐wave applications. Double antipodal fin line… read more here.
Keywords: millimeter wave; power amplifier; power combining; spatial power ... See more keywords
Compact 5G millimeter‐wave dual‐band filter with application in filtenna
Sign Up to like & getrecommendations! Published in 2020 at "Microwave and Optical Technology Letters"
DOI: 10.1002/mop.32637
Abstract: In this article, a dual‐band sixth order double symmetric T‐slot filter is proposed for the 5G communication systems. This filter contains two duplicate square resonators and a T‐shape feedline on the Rogers RT duroid 5880… read more here.
Keywords: millimeter wave; filter; filtenna; dual band ... See more keywords
A compact folded SIW multibeam antenna array for 5G millimeter wave applications
Sign Up to like & getrecommendations! Published in 2020 at "Microwave and Optical Technology Letters"
DOI: 10.1002/mop.32721
Abstract: A novel compact multilayer multibeam antenna array based on substrate integrated waveguide (SIW) is proposed in this letter for 5G millimeter wave (mm‐wave) applications. A multimode beam forming network (BFN) cascaded by phase compensation and… read more here.
Keywords: array; antenna; millimeter wave; multibeam antenna ... See more keywords
Efficient modeling of low‐resolution millimeter‐wave transceivers for massive MIMO wireless communications systems
Sign Up to like & getrecommendations! Published in 2020 at "Microwave and Optical Technology Letters"
DOI: 10.1002/mop.32727
Abstract: We present a high‐fidelity measurement‐based nonlinear model of low‐complexity millimeter‐wave transmit and receive circuits for design and analysis of 1‐bit on‐off‐key (OOK) massive MIMO wireless communications systems. The receive model is based upon a fabricated… read more here.
Keywords: millimeter wave; wireless communications; mimo wireless; mimo ... See more keywords