A New Satellite Antenna Concept Using Reflectarray Antennas
A New Satellite Antenna Concept Using Reflectarray Antennas
复制标题
使用反射阵列天线的新卫星天线概念
DOI：
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发表时间：
2019
期刊：
影响因子：
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通讯作者：
M. Takikawa
中科院分区：
文献类型：
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作者：
Mei Fukaya;Ryota Obata;S. Makino;H. Nakajima;M. Takikawa
在本文中，一个新的卫星天线的概念，涉及一个Tx和Rx反射阵列天线的建议。每个天线由多个喇叭和一个单层平面反射阵组成。由于偏振的原因，它在方位角上辐射具有不同辐射方向的扫描光束。每个扫描波束具有取决于频率的不同辐射方向，并且在高度上覆盖细长区域。服务区域内的每个用户选择最佳频带，并且极化由用户的位置确定。如果允许3dB增益降低，则可以使用频带的一半，类似于传统的多点波束天线。
In this paper, a new satellite antenna concept involving a Tx and an Rx reflectarray antenna is proposed. Each antenna is composed of multiple horns and a single-layer flat reflectarray. It radiates scanning beams with different radiation directions in the azimuth due to polarization. Each scanning beam has a different radiation direction depending on the frequency and covers an elongated area in elevation. Each user in the service area selects the optimum frequency band, and the polarization is determined by the position of the user. If a 3 dB gain reduction is allowed, half of the frequency band can be used, similar to the conventional multiple-spot beam antenna.