Results 221 to 230 of about 17,911 (257)
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2000
Preface Editor Contributors Introduction Todd E. Lizotte and Fred M. Dickey Hitachi Via Mechanics (USA), Inc., Londonderry, New Hampshire and FMD Consulting, LLC, Springfield, Missouri, USA The Mathematical and Physical Theory of Lossless Beam Shaping Louis A. Romero and Fred M.
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Preface Editor Contributors Introduction Todd E. Lizotte and Fred M. Dickey Hitachi Via Mechanics (USA), Inc., Londonderry, New Hampshire and FMD Consulting, LLC, Springfield, Missouri, USA The Mathematical and Physical Theory of Lossless Beam Shaping Louis A. Romero and Fred M.
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Journal of Astrophysics and Astronomy, 1995
Observations of mean or average pulse profiles and their polarization give us much information on the shape of pulsar beams. The observed polarization variations, profile symmetry and frequency dependence of profile shape strongly suggest that the emission beam is conical and emitted from the vicinity of a magnetic pole.
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Observations of mean or average pulse profiles and their polarization give us much information on the shape of pulsar beams. The observed polarization variations, profile symmetry and frequency dependence of profile shape strongly suggest that the emission beam is conical and emitted from the vicinity of a magnetic pole.
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2020
Metasurfaces (MTS) are two-dimensional metamaterials (MTM) that are a periodic composition of thin, subwavelength and periodic inclusions widely known as unit-cells or meta-atoms. Amongst the vast range of research outcomes accomplished so far, there still is keen interest in the further investigation of metasurfaces to be utilized in various unique ...
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Metasurfaces (MTS) are two-dimensional metamaterials (MTM) that are a periodic composition of thin, subwavelength and periodic inclusions widely known as unit-cells or meta-atoms. Amongst the vast range of research outcomes accomplished so far, there still is keen interest in the further investigation of metasurfaces to be utilized in various unique ...
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2018
Laser Beam Shaping: Theory and Techniques addresses the theory and practice of every important technique for lossless beam shaping. Complete with experimental results as well as guidance on when beam shaping is practical and when each technique is appropriate, the Second Edition is updated to reflect significant developments in the field.
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Laser Beam Shaping: Theory and Techniques addresses the theory and practice of every important technique for lossless beam shaping. Complete with experimental results as well as guidance on when beam shaping is practical and when each technique is appropriate, the Second Edition is updated to reflect significant developments in the field.
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2001
Antennas have a decisive influence on the performance of wireless communication systems: depending on radiation characteristics, antennas differently affect cell coverage, multipath discrimination, and cochannel interference, which directly or indirectly impact on system performance.
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Antennas have a decisive influence on the performance of wireless communication systems: depending on radiation characteristics, antennas differently affect cell coverage, multipath discrimination, and cochannel interference, which directly or indirectly impact on system performance.
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Freeform optical design of beam shaping systems with variable illumination properties
Optics Express, 2021Zhenrong Zheng +2 more
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