Results 11 to 20 of about 16,318,448 (302)
A D-Band Waveguide-SIW Transition for 6G Applications [PDF]
Journal of Electromagnetic Engineering and Science, 2022 In this work, a design of a transition from a standard D-band waveguide to substrate integrated waveguide (SIW) technology is presented for 6G applications. The waveguide is connected to an SIW by carving a slot at the bottom metal of the printed circuit
Amir Altaf +4 more
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A D-Band 3D-Printed Antenna [PDF]
IEEE Transactions on Terahertz Science and Technology, 2020 This paper reports the design and fabrication of a novel all-metal antenna operating in the millimeter-wave band. Based on the resonant cavity antenna (RCA) concept, the principle of antenna operation is explained, and a parametric study of several key design parameters is provided.
Chao Gu +10 more
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Transmission of 4096-QAM OFDM at D-band
Optics Express, 2023 We experimentally demonstrate the transmission of multi-order quadrature amplitude modulation (QAM) orthogonal frequency division multiplexing (OFDM) millimeter wave signals at D-band. Meanwhile, the system nonlinearity analysis is also given, which is originated from the unsatisfactory optoelectronic devices, multi-order QAM and the high peak-to ...
Li zhao, Kaihui Wang, Wen Zhou
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Strain and ligand effects in Pt-Ni alloys studied by valence-to-core X-ray emission spectroscopy
Scientific Reports, 2021 Experimental detection of the Pt 5d densities of states in the valence band is conducted on a series of Pt-Ni alloys by high energy resolution valence-to-core X-ray emission spectroscopy (VTC-XES) at the Pt L3-edge.
Jiatang Chen +3 more
doaj +1 more source
A D-Band Hybrid-Type CMOS Phase Shifter with Full 360° Phase Coverage [PDF]
Journal of Electromagnetic Engineering and ScienceThis paper presents a D-band phase shifter fabricated using 65-nm CMOS technology that provides continuous full 360° phase shift. To achieve moderate insertion loss with low DC power, a hybrid-type topology is adopted by combining a 180° reflection-type ...
Eunjung Kim, Sanggeun Jeon
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A Circularly Polarized Antenna in D-Band [PDF]
2021 IEEE Texas Symposium on Wireless and Microwave Circuits and Systems (WMCS), 2021 In this paper a 140 GHz circularly polarized antenna is studied. The motivation of this work is to propose a suitable antenna configuration to reduce the subsequent manufacturing cost and complexity. The resultant antenna consists of a circular waveguide feed and a dielectric cover which is used to increase antenna directivity.
Gu, Chao, Bai, Lu, Cheng, Fei, Yin, Shuo
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Disruptive TRX design for the D-band
, 2023 This paper presents an architecture for broadband wireless transceivers operating in the D-band with the aim of covering tens of GHz of band over the air with a limited bandwidth per channel at the baseband. The main idea is to combine several baseband channels in a multi-channel radio-frequency (RF) signal.
Gonzalez Jimenez, José Luis +9 more
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Ligand field tuning of d-orbital energies in metal-organic framework clusters
Communications Chemistry, 2023 Linker functionalization is a common route used to affect the electronic and catalytic properties of metal-organic frameworks. By either pre- or post-synthetically installing linkages with differing linker moieties the band gap, workfunction, and exciton
Brian G. Diamond +2 more
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Tuned d-band states over lanthanum doped nickel oxide for efficient oxygen evolution reaction
Nano Materials Science, 2023 The d-band state of materials is an important descriptor for activity of oxygen evolution reaction (OER). For NiO materials, there is rarely concern about tuning their d-band states to tailor the OER behaviors.
Ziyi Xiao +9 more
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Nanoscale Research Letters, 2017 Confocal micro-Raman spectroscopy is used as a sensitive tool to study the nature of laser-induced defects in single-layer graphene. Appearance and drastic intensity increase of D- and D′ modes in the Raman spectra at high power of laser irradiation is ...
Yurii Stubrov +4 more
doaj +1 more source