Showing 241 - 260 results of 307 for search '"broadband"', query time: 0.05s Refine Results
  1. 241

    Wideband Omnidirectional Slotted-Waveguide Antenna Array Based on Trapezoidal Slots by Hugo Rodrigues Dias Filgueiras, James R. Kelly, Pei Xiao, I. F. da Costa, Arismar Cerqueira Sodré

    Published 2019-01-01
    “…The proposed antenna array and its enabling techniques present themselves as promising solutions for mm-wave application, including 5G enhanced mobile broadband (eMBB) communications.…”
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    Article
  2. 242

    Tunable Ultraviolet Pulse Generation from a High-Power Self-Similar-Amplification Yb-Fiber Laser by Zefeng Wang, Daping Luo, Gehui Xie, Zejiang Deng, Chenglin Gu, Wenxue Li

    Published 2025-01-01
    “…The ultraviolet spectra can be tuned within a spectral range of 253.6 to 275 nm owing to the broadband infrared seed spectra. The maximum ultraviolet average power of 1.44 W was achieved at 275 nm with spectral half-width and an infrared-to-ultraviolet efficiency of 1.1 nm and 2.44%, respectively. …”
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  3. 243

    REVIEWING ADVANCEMENT IN TELECOMMUNICATIONS INFRASTRUCTURE: A COMPARATIVE STUDY OF AFRICA AND THE USA by Chinedu Alex Ezeigweneme, Aniekan Akpan Umoh, Valentine Ikenna Ilojianya, Abimbola Oluwatoyin Adegbite

    Published 2024-02-01
    “…The analysis delves into the rollout of 5G networks, the evolution of broadband technologies, and the integration of Internet of Things (IoT) devices. …”
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    Article
  4. 244

    Study on Electrical Parameter Matching of Piezoelectric Stack Periodic Strut for Helicopter Cabin Noise Control by Yue Hui-yu, Lu Yang, Dang Chong, Qin Yi-Fan, Ma Jin-chao, Zhu Tian-Yu

    Published 2022-01-01
    “…The propagation of elastic waves in the stopband frequency range is attenuated, which can improve the broadband passive vibration isolation capability of the PSPS; The piezoelectric stacks can adjust the elastic wave propagation in the PSPS and improve the single-frequency or multifrequency active isolation performance of the PSPS. …”
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    Article
  5. 245

    Investigating Low-Frequency Electromagnetic Fluctuations on PCB Surfaces: A Near-Field Analysis of CBCPW Transmission Lines up to 15.2 MHz by Mariusz Zubert, Mariusz Jankowski, Zbigniew Kulesza

    Published 2025-01-01
    “…The paper employs statistical methods to model low-frequency electromagnetic field fluctuations over printed circuit boards (PCBs) using near-field measurements within the frequency domain along the Coplanar Broadband Capacitance Wave (CBCPW) transmission line. …”
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  6. 246

    Optical Feedback for Sensitivity Enhancement in Direct Raman Detection of Liquids by Miao Liu, Yunyun Mu, Jingyun Hu, Jiajun Li, Xinping Zhang

    Published 2021-01-01
    “…In this consideration, we demonstrate a broadband optical feedback scheme by a curved high-reflection mirror for both the excitation and the Raman-scattering light, so that the excitation and the forward-propagating Raman signal can be back-reflected and collected with a high efficiency. …”
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    Article
  7. 247

    A Study of an IT-Assisted Higher Education Model Based on Distributed Hardware-Assisted Tracking Intervention by Haijun Liu

    Published 2022-01-01
    “…The model dynamically adjusts the bit rate by referring to the broadband estimation and cache occupancy data to ensure users have a smooth experience effect. …”
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    Article
  8. 248

    The role of 5G in enhancing IOT connectivity: a systematic review on applications, challenges, and future prospects by Shankha Goswami, Surajit Mondal

    Published 2024-12-01
    “…The emergence of 5G technology offers a solution to these limitations by introducing Ultra-Reliable Low-Latency Communication (URLLC), Enhanced Mobile Broadband (eMBB), and Massive Machine-Type Communication (mMTC), each of which caters to specific IoT needs. …”
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    Article
  9. 249

    Molecular saturation determines distinct plasmonic enhancement scenarios for two-photon absorption signal by Saeid Izadshenas Jahromi, Karolina Słowik

    Published 2025-01-01
    “…For this method to be efficient, it must meet several criteria, including broadband operational capability and a high fluorescence rate to ensure effective signal detection. …”
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    Article
  10. 250

    The physics-based deterministic scenarios for earthquake hazards and losses of the Zhujiangkou fault in southern China by Yilong Li, Houyun Yu, Ming Wang, Xiuwei Ye, Kai Liu, Zhenguo Zhang, Wei Zhang, Xiaofei Chen

    Published 2025-01-01
    “…We developed high-resolution, broadband, deterministic scenarios for earthquake hazards and losses of the Zhujiangkou Fault (ZF) in the Guangdong-Hong Kong-Macao Greater Bay Area of southern China. …”
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    Article
  11. 251

    Structure and Properties of Multiwall Carbon Nanotubes/Polystyrene Composites Prepared via Coagulation Precipitation Technique by I. N. Mazov, V. L. Kuznetsov, D. V. Krasnikov, N. A. Rudina, A. I. Romanenko, O. B. Anikeeva, V. I. Suslyaev, E. Yu. Korovin, V. A. Zhuravlev

    Published 2011-01-01
    “…Electromagnetic response of prepared materials was investigated in broadband region (0.01–4 and 26–36 GHz). It was found that MWNT/PSt composites are almost radiotransparent for low frequency region and possess high absorbance of EM radiation at higher frequencies.…”
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  12. 252

    High temperature absorption properties of SiOC ceramic matrix composite reinforced by continuous microwave- absorbing SiC fibers by SHI Qiaoying, LI Jingdan, GAN Nianyu, LI Siwei

    Published 2025-01-01
    “…The results show that the dielectric constants of the SiC-BN/SiOC composites exhibits significant frequency dispersion effects, leading to broadband microwave-absorbing properties. When the thickness of the composites is 2.1 mm, the maximum bandwidth of the reflection loss better than -10 dB in the X band and the Ku band is 5.7 GHz. …”
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    Article
  13. 253

    A multidimensional approach to quantum state tomography of photoelectron wavepackets by H. Laurell, J. Baños-Gutiérrez, A. L’Huillier, D. Busto, D. Finkelstein-Shapiro

    Published 2025-01-01
    “…It is based on measuring the coherences of a photoelectron created by absorption of an XUV pulse using a broadband infrared (IR) probe that is scanned in time and a narrowband IR reference that is temporally fixed to the XUV pulse. …”
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  14. 254
  15. 255

    Bi‐Directional Spectro‐Polarimetry of Olivine Sand by Chris H. Lee, Charles M. Bachmann, Nayma Binte Nur, Rachel M. Golding

    Published 2025-01-01
    “…Our laboratory instrumentation included a hyperspectral goniometer, a broadband linear polarizer, and a tungsten‐halogen illumination source. …”
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  16. 256

    Low-Profile Dual-Wideband MIMO Antenna with Low ECC for LTE and Wi-Fi Applications by Gye-Taek Jeong, Sunho Choi, Kyoung-hak Lee, Woo-Su Kim

    Published 2014-01-01
    “…The antenna covers LTE band 7 and Wi-Fi as well as wireless broadband (Wibro) and Worldwide Interoperability for Microwave Access (WiMax) (except for the 3.5-GHz band). …”
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  17. 257

    Vibration mechanism study based on coupled dynamic model for TBM main drive system by Wenjun Xu, Hanyang Wu, Junzhou Huo, Dongyun Wang

    Published 2025-01-01
    “…The main frequency band of support shell is concentrated at 18–20 Hz, which is mainly caused by the excitation of the first three-order natural frequencies of the system under the action of the system’s broadband external excitation load. At the same time, it is found that the coupled vibration of radial overturning vibration and lateral translation vibration is easy to appear in the actual system vibration. …”
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  18. 258

    Modeling of Time of Arrival Method for Lightning Locating Systems by Saeed Vahabi-Mashak, Zulkurnain Abdul-Malek, Kamyar Mehranzamir, Hadi Nabipour-Afrouzi, Behnam Salimi, Chin-Leong Wooi

    Published 2015-01-01
    “…This paper concentrates on the modelling of time of arrival (TOA) technique for locating a lightning flash by utilizing three broadband antennas. Consequently, by employing the developed model, the influences of geometric parameters on the accuracy of the model are evaluated. …”
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  19. 259

    Enhanced laser-induced single-cycle terahertz generation in a spintronic emitter with a gradient interface by Leonid A. Shelukhin, Anna V. Kuzikova, Andrey V. Telegin, Vladimir D. Bessonov, Alexey V. Ognev, Alexander S. Samardak, Junho Park, Young Keun Kim, Alexandra M. Kalashnikova

    Published 2025-12-01
    “…The development of spintronic emitters of broadband terahertz (THz) pulses relies on designing heterostructures in which the processes of laser-driven spin current generation and subsequent spin-to-charge current conversion are the most efficient. …”
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  20. 260

    A Miniaturized Planar Monopole Antenna Based on a Coupling Structure for Compact Mobile Internet of Things (IoT) and Electric Vehicles (EVs) Device Applications in 5G, LTE, WLAN, W... by Ming-An Chung, Chih-Wei Yang

    Published 2021-01-01
    “…The recommended antenna provides a broadband operation in an electric vehicles (EVs) and Internet of Things (IoT) devices application embedded in the wireless communication standard for 5G, LTE, V2X, WLAN, WiMAX, Sirius/XM Radio, V2X, and DSRC to support the multiband application. …”
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    Article