Results 11 to 20 of about 23,034 (257)
Sensors, 2021 Self-localization based on passive RFID-based has many potential applications. One of the main challenges it faces is the suppression of the reflected signals from unwanted objects (i.e., clutter). Typically, the clutter echoes are much stronger than the
Jesús Sánchez-Pastor +6 more
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Fibers, 2020 This paper discusses approaches to the numerical integration of the coupled nonlinear Schrödinger equations system, different from the generally accepted approach based on the method of splitting according to physical processes.
Airat Zhavdatovich Sakhabutdinov +6 more
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IEEE Transactions on Quantum Engineering, 2021 Classical microwave circuit theory is incapable of representing some phenomena at the quantum level. To include quantum statistical effects, various theoretical treatments can be employed. Quantum input-output network (QION) theory is one such treatment.
Malida O. Hecht +2 more
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IEEE Access, 2020 A theoretical investigation of distributed microwave circuit built with Ti-shape topology is developed. The topology under study consists of neighbored T- and i-shape interconnect lines.
Xiang Zhou +7 more
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Negative Group Delay Theory on Li Topology
IEEE Access, 2020 This paper investigates an innovative negative group delay (NGD) theory of “li” geometrical shape topology. The li-topology is an outstandingly simple and fully distributed circuit comprised of a coupled line (CL).
Blaise Ravelo +4 more
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A review on electromagnetic microwave absorption properties: their materials and performance
Journal of Materials Research and Technology, 2022 The elevated levels of electromagnetic (EM) radiation released by electronic instruments, communication devices, and information processing technologies are becoming a major concern nowadays.
Madiha Fathi Elmahaishi +3 more
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A Frequency Reconfigurable Compact Planar Inverted-F Antenna for Portable Devices
International Journal of Antennas and Propagation, 2022 In this paper, a low-profile, compact size, inexpensive, and easily integrable frequency reconfigurable antenna system is proposed. The proposed antenna consists of an inverted-F shape antenna, capacitors, and switching PIN diodes.
Adnan Ghaffar +7 more
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Enhanced electromagnetic microwave absorbing performance of carbon nanostructures for RAMs: A review
Applied Surface Science Advances, 2023 Microwave absorbent materials (MAMs) are significant in a extensive range of civil and military applications, including national defense security, healthcare, electronic reliability, and anti-radar detection of war fighters, as information technology ...
Yusuf Sani +4 more
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Matrix pencil method for topography‐adaptive digital beam‐forming in synthetic aperture radar
IET Radar, Sonar & Navigation, 2021 Spaceborne synthetic aperture radar (SAR) with digital beam‐forming (DBF) in elevation uses very sharp time‐variant antenna beams to improve the signal‐to‐noise ratio (SNR) and range ambiguity‐to‐signal ratio.
Tobias Rommel +3 more
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Cosmic microwave background theory [PDF]
Proceedings of the National Academy of Sciences, 1998 A long-standing goal of theorists has been to constrain cosmological parameters that define the structure formation theory from cosmic microwave background (CMB) anisotropy experiments and large-scale structure (LSS) observations. The status and future promise of this enterprise is described.
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