Abstract

The use of active phased antenna arrays (APAAs) makes it possible to redistribute the information capacity of the communication system by scanning independent beams with electronic control. The process of creating APAAs is a solution to a multifactorial problem under the conditions of a significant number of requirements and restrictions imposed on onboard APAAs as part of a spacecraft. In this study the options for constructing multibeam receiving antenna systems based on APAAs are considered. The criteria for choosing radiators for antennas of various ranges and purposes are presented. The estimates of the energy characteristics of the APAA Ka-, C-, and S-bands are given. Recommendations for ensuring the electromagnetic compatibility of communication systems are given. It is shown that the use of phase shifters based on gallium arsenide field-effect transistors with a Schottky gate in a passive connection makes it possible to reduce the power consumption in control circuits without harming the technical parameters.

中文翻译：

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机载多波束接收APAA卫星通信系统设计原理

摘要

使用有源相控天线阵列 (APAA) 可以通过电子控制扫描独立波束来重新分配通信系统的信息容量。在作为航天器的一部分对机载 APAA 施加大量要求和限制的条件下，创建 APAA 的过程是多因素问题的解决方案。在本研究中，考虑了构建基于 APAA 的多波束接收天线系统的选项。介绍了为各种范围和用途的天线选择辐射器的标准。给出了对 APAA Ka、C 和 S 波段能量特性的估计。给出了确保通信系统电磁兼容性的建议。