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Martynas Mila?evicius and Laurynas Maciulis
This paper presents a state-of-the-art overview of fine beam steering mechanisms for free-space optical communication on satellites. Precise beam pointing is a critical task for the successful operation of free-space optical communication systems. Based ...
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Fei Yang, Fan Xu, Chenxi Liu, Xinyu Yang, Ziqiang Wang, Junwei Wu and Xiaojian Fu
The proposed metasurface in the article can be used in millimeter wave sensing and 5G wireless communications.
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Junhong Qian, Xiaoyan Wu, Hewei Liu, Xiubao Hua, Ye Tao and Rongzhu Zhang
In order to further explore the technical difficulties involved in orienting the sparse-aperture imaging system towards practical applications, this paper proposes an optical?mechanical structure design scheme and performance simulation, as well as actua...
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Sungsik Wang, Hyunsoo Kim, Dongyoon Kim and Hosung Choo
This paper proposes a multi-band array antenna that shares a common aperture with heterogenous array elements. The multi-band array antenna includes one printed dipole antenna for the S-band and 3 × 3 array E-shaped patch antennas for the X-band. The cur...
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Mario García de Blas, Morten Andreas Geday, Jose Manuel Otón and Xabier Quintana Arregui
Electrically tunable phase gratings are able to steer an incoming light beam without employing movable parts. Here, we present the design and implementation of a 2D beam steering device by cascading two orthogonal 1D liquid crystal (LC) based phase grati...
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Simon Jekosch and Ennes Sarradj
Microphone arrays methods are useful for determining the location and magnitude of rotating acoustic sources. This work presents an approach to calculating a discrete directivity pattern of a rotating sound source using inverse microphone array methods. ...
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Andrew Mahre, Tian-You Yu, Robert D. Palmer and James M. Kurdzo
While the vertical structure of cold fronts has been studied using various methods, previous research has shown that traditional methods of observing meteorological phenomena (such as pencil-beam radars in PPI/volumetric mode) are not well-suited for res...
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Shiroma, G. S.; Miyamoto, R. Y.; Roque, J. D.; Cardenas, J. M.; Shiroma, W. A.
Pág. 838 - 844
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Tombak, A. Mortazawi, A.
Pág. 664 - 670
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Back, C.-W. Song, S. Park, J.-H. Lee, S. Kim, J.-M. Choi, W. Cheon, C. Kim, Y.-K. Kwon, Y.
Pág. 325 - 331
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