【作者】 石毅恒； 陈子豪； 王志刚； 张波；

【Author】 Yiheng Shi;Zihao Chen;Zhigang Wang;Bo Zhang;School of Optoelectronic Engineering, Chongqing University of Posts and Telecommunications;Chongqing Institute of Microelectronics Industry Technology,UESTC;University of Electronic Science and Technology of China;

【机构】 重庆邮电大学光电工程学院； 电子科技大学重庆微电子产业技术研究院； 电子科技大学；

【摘要】 本文研究保证相控阵雷达射频前端相位一致性的重要性和方法。雷达的相位一致性对于保持波束指向和形状控制至关重要,任何相位误差都会影响雷达性能。传统的相位一致性解决方案,如添加相位补偿芯片,提高系统成本,降低基板的空间利用率。因此,提出一种基于高温共烧陶瓷基板的Si P设计方法,探讨微波传输线拐角和层间走线长度对相位一致性的影响。实验结果表明,通过优化走线设计能有效保持相位一致性,从而无需额外的相位补偿芯片。更多还原

【Abstract】 This paper discusses the importance and methods of ensuring phase coherence in the RF front-end of phased array radars. Phase coherence is essential for the control of radar beam direction and shape, as any phase discrepancy can compromise radar performance. Traditional phase coherence solutions, such as the addition of phase compensation chips, have been reevaluated. Hence, a Si P design approach leveraging high-temperature co-fired ceramic(HTCC)substrates has been proposed, examining how microwave transmission line bends and interlayer trace lengths affect phase coherence. The experimental findings suggest that by optimizing trace design, phase coherence can be effectively maintained without the need for extra phase compensation chips, thereby reducing system costs and enhancing substrate space efficiency.更多还原