Satellite communication systems for mounting on vehicles are commonly based on phased array antennas with electronical beam steering. In this work we develop active metasurface-based receive-transmit antenna arrays for newly deployed satellite constellation system running in Ku-band. Both receive and transmit subarrays are based on patch-antenna elements driven in circular polarization using 90 hybrids. In both subarrays we optimized elements sizes and array period to have optimal ellipticity, gain, side lobe level. In electromagnetic simulations we achieved realized gain of 32.2 dBi for the Rx subarray and 33.4 dBi for the Tx subarray obtained in a broad scanning angle range from − 15 to + 45.

中文翻译：

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用于卫星通信的 Ku 波段相控阵天线

安装在车辆上的卫星通信系统通常基于具有电子波束控制的相控阵天线。在这项工作中，我们为新部署的在 Ku 频段运行的卫星星座系统开发了基于有源超表面的接收发射天线阵列。接收和发射子阵列均基于使用 90 个混合驱动的圆极化贴片天线元件。在这两个子阵列中，我们优化了元素大小和阵列周期，以获得最佳的椭圆率、增益、旁瓣电平。在电磁仿真中，我们在 − 15 度至 + 45 度的宽扫描角度范围内实现了 Rx 子阵列的增益为 32.2 dBi，Tx 子阵列的增益为 33.4 dBi。