Results 21 to 30 of about 55,042 (213)
Classical soft graviton theorem rewritten
Journal of High Energy Physics, 2022 Classical soft graviton theorem gives the gravitational wave-form at future null infinity at late retarded time u for a general classical scattering. The large u expansion has three known universal terms: the constant term, the term proportional to 1/u ...
Biswajit Sahoo, Ashoke Sen
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SensorsThis paper proposes a dual-band patch antenna with combined self-decoupling and filtering properties, designed to suppress mutual coupling between two antenna elements both within the same dual-band and across different dual-bands. Initially, a dual-band
Jun-Yi Lv +3 more
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Radiating stars with composite matter distributions
European Physical Journal C: Particles and Fields, 2021 In this paper we study the junction conditions for a generalised matter distribution in a radiating star. The internal matter distribution is a composite distribution consisting of barotropic matter, null dust and a null string fluid in a shear-free ...
Sunil D. Maharaj, Byron P. Brassel
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IEEE Open Journal of Antennas and PropagationA class of dielectric filtering inverted-L antenna with reflective- and quasi-reflectionless-type radiation nulls is proposed to achieve wideband or dual-band operation.
Wen Zheng +6 more
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Seamless Integration Technology for Filtenna Toward 5G/6G Wireless Communications
IEEE Open Journal of Antennas and PropagationThe fifth generation (5G) mobile communication systems employ technologies such as massive MIMO, millimeter-wave (mmWave), and ultra-dense networks to support higher transmission data rate and lower latency, thereby enabling commercial deployment ...
Wei Hong, Zi-Jun Guo, Zhang-Cheng Hao
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Means of Employing Radiation Nulls in Filtennas: A Review
IEEE AccessIn this paper, methods for improving frequency selectivity in filter antennas by employing controllable radiation nulls (RN) are reviewed. Radiation nulls in the Gain graph help in improving the rejection of out-of-band frequencies.
A. Veerabhadra Rao, Gopi Ram
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Azimuth Angle Estimation for a Reduced Radiation Region Formed by a Metaspiral Antenna
IEEE Access, 2019 A two-arm metaspiral antenna is presented, where the feeding voltage sources are expressed using excitation amplitude r and deviation angle δ. This excitation is decomposed into the odd mode and even mode components. The odd mode component forms a
Hisamatsu Nakano +4 more
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Null Steering of Circular Array Using Array Factor for GPS Anti-Jam [PDF]
Journal of the Korean Institute of Electromagnetic Engineering and Science, 2018 In this letter, the null steering of a circular array is presented using a modified array factor (AF) for a global positioning system (GPS) anti-jam.
Taek-Sun Kwon +2 more
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Shared Genetic Effects and Antagonistic Pleiotropy Between Multiple Sclerosis and Common Cancers
Annals of Clinical and Translational Neurology, EarlyView.ABSTRACT Objective Epidemiologic studies have reported inconsistent altered cancer risk in individuals with multiple sclerosis (MS). Factors such as immune dysregulation, comorbidities, and disease‐modifying therapies may contribute to this variability.
Asli Buyukkurt +5 more
wiley +1 more source
A Transparent Proximity-Coupled-Fed Patch Antenna With Enhanced Bandwidth and Filtering Response
IEEE Access, 2021 This paper introduces a novel transparent proximity-coupled-fed patch antenna with enhanced impedance bandwidth and good filtering response. The proposed antenna consists of a ground plane, a specific feeding structure and a slotted patch.
Hao-Tao Hu, Bao-Jie Chen, Chi Hou Chan
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