Zobrazeno 1 - 10
of 4 078
pro vyhledávání: '"D band"'
Publikováno v:
Results in Surfaces and Interfaces, Vol 18, Iss , Pp 100359- (2025)
The adsorption behavior of nitric oxide (NO) on the Cu(100) surface at varying coverage levels is investigated using density functional theory (DFT) with van der Waals corrections. We examine various NO coverages on Cu(100): 0.08 ML, 0.25 ML, 0.5 ML,
Externí odkaz:
https://doaj.org/article/58647896b78246959086ffa621175675
Akademický článek
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Autor:
Lulu Wen, Xiaoshuo Liu, Xinyang Li, Hanlin Zhang, Shichuan Zhong, Pan Zeng, Syed Shoaib Ahmad Shah, Xiaoye Hu, Weiping Cai, Yue Li
Publikováno v:
Advanced Science, Vol 11, Iss 34, Pp n/a-n/a (2024)
Abstract The modulation of the chemical microenvironment surrounding metal nanoparticles (NPs) is an effective means to enhance the selectivity and activity of catalytic reactions. Herein, a post‐synthetic modification strategy is developed to modu
Externí odkaz:
https://doaj.org/article/ba1ee20108ff4e62b13adaab8d19ddb2
Publikováno v:
IEEE Access, Vol 12, Pp 168010-168017 (2024)
In this paper, we present a 6-stage 120 GHz hybrid low noise amplifier (LNA) for sub-THz radar systems. To enhance the noise figure (NF) and gain performance of the LNA, we propose a hybrid architecture that utilizes a combination of 2-stage single-e
Externí odkaz:
https://doaj.org/article/60e14195fd594c149cbaaac1f174327f
Publikováno v:
IEEE Access, Vol 12, Pp 146315-146327 (2024)
Wireless communication in the sub-terahertz and terahertz (THz) bands (broadly from 100 GHz to 10 THz) is a critical building block of the future generations of telecommunication and networking due to the large available bandwidth at these frequencie
Externí odkaz:
https://doaj.org/article/e50228e3374a42d9a02ee5baec83d6a2
Autor:
Justin Romstadt, Lukas Dierkes, Stephan Hauptmeier, Tobias T. Braun, Hakan Papurcu, Jens Richter, Pascal Stadler, Ahmad Zaben, Klaus Aufinger, Jan Barowski, Nils Pohl
Publikováno v:
IEEE Journal of Microwaves, Vol 4, Iss 4, Pp 706-720 (2024)
The need for size and cost-efficient vector network analyzer (VNA) frequency extension modules (VNAX module) is driven by new applications in research and industry. Responding to this potential demand, we present a novel D-band VNAX module based on a
Externí odkaz:
https://doaj.org/article/d49649fae04b4e68b48fb413deffc8ca
Publikováno v:
IEEE Access, Vol 12, Pp 115448-115464 (2024)
This paper proposes a wearable reconfigurable antenna which can be operated in sub-6GHz, V-band and D-band. In the sub-6GHz band, the dual loop antennas are combined with a diode switch to achieve multi-mode switching. In the V-band, a controllable b
Externí odkaz:
https://doaj.org/article/5c9c3e06166f438f943d959dd63bd518
Publikováno v:
IEEE Access, Vol 12, Pp 110469-110475 (2024)
This paper presents a planar slot structure antenna array with a simple structure of a substrate-integrated waveguide for D-band communication bands. This antenna achieves wideband and high gain characteristics. The antenna is fed by a power divider
Externí odkaz:
https://doaj.org/article/009a7045f3684b4198f78b38099bab8e
Publikováno v:
IEEE Journal of Microwaves, Vol 4, Iss 3, Pp 473-485 (2024)
Harmonic radar systems are highly effective at distinguishing specific targets from surrounding clutter. Therefore, the reception of a tag response, conventionally at the second harmonic, is utilized. Thus, necessitating two bands with that specific
Externí odkaz:
https://doaj.org/article/f9c1e92e7f3f4da1af5d947176dd0c13
Publikováno v:
IEEE Access, Vol 12, Pp 92787-92796 (2024)
This paper presents a D-band low-power sub-harmonic receiver fabricated in a 65-nm CMOS technology. A sub-harmonic mixing technique is adopted to minimize the local oscillator (LO) leakage and to relax the design challenge of LO source. The receiver
Externí odkaz:
https://doaj.org/article/066258d9e24c4dcb8c3438140bf3b88d