This article presents a 130 nm SiGe BiCMOS four-channel satellite communication receiver. Phased-array system has become the optimal solution for satellite communication due to the electrical steering nature. In order to obtain wider bandwidth, higher precision of phase shift and smaller chip size, an improved quadrature network and a phase compensation technique are proposed in this article. Each channel consists of a cascade low noise variable gain amplifier with a high Q value inductor and an active vector synthetic phase shifter. The measurement results show that the receiver consumes only 193 mA current under 1.6 V supply voltage. The chip can achieve a gain of more than 23 dB (including synthesizer losses) from 19 to 23 GHz. From 17.5 to 23 GHz, the RMS phase shifting accuracy and attenuation accuracy are less than 2.7° and 1.1 dB, respectively. The noise figure and the gain variation are less than 2.3 dB and ± 1.5 dB, respectively. The total chip area is 3.5 × 1.8 mm².

中文翻译：

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具有相位校准技术的17.5-23 GHz高精度移相四通道卫星通信接收机

本文介绍了一种 130 nm SiGe BiCMOS 四通道卫星通信接收器。相控阵系统由于其电动转向特性已成为卫星通信的最佳解决方案。为了获得更宽的带宽、更高的相移精度和更小的芯片尺寸，本文提出了一种改进的正交网络和相位补偿技术。每个通道由一个级联低噪声可变增益放大器组成，具有高Q值电感器和有源矢量合成移相器。测量结果表明，接收器在 1.6 V 电源电压下仅消耗 193 mA 电流。该芯片可在 19 至 23 GHz 范围内实现超过 23 dB（包括合成器损耗）的增益。从 17.5 到 23 GHz，RMS 相移精度和衰减精度分别小于 2.7° 和 1.1 dB。噪声系数和增益变化分别小于 2.3 dB 和 ± 1.5 dB。总芯片面积为 3.5 × 1.8 mm ²。