← 返回 JSSC 论文列表JSSC 2019第5期RF & Wireless65nmPhased Array
A Nonuniform Sparse 2-D Large-FOV Optical Phased Array With a Low-Power PWM Driv
提出一种低功耗非均匀稀疏二维大视场光学相控阵，实现高分辨率和低功耗。
128单元孔径，16°/0.8°无栅瓣视场-波束宽度比，484单元等效均匀阵列，400可分辨点
光学相控阵非均匀稀疏孔径低功耗PWM驱动硅光子
▸创新点1：非均匀稀疏孔径设计通过优化阵列布局实现高视场角与窄波束宽度的比值（16°/0.8°），相比传统均匀阵列减少元件数量至128个，同时等效于484元均匀阵列性能，属于系统级创新。
▸创新点2：行-列功率分配网格结构将相位控制单元驱动器数量从144个减少至37个，显著降低系统复杂度与功耗，属于电路架构创新。
▸创新点3：高摆幅PWM驱动电路采用击穿电压倍增器与软启动技术，在65nm CMOS工艺下实现低功耗驱动，功耗降低幅度达30倍以上，属于电路设计创新。
▸创新点4：双芯片解决方案（CMOS电子驱动芯片+SOI光子芯片）通过工艺兼容性设计实现1.7mm²与2.08mm²的小面积集成，属于封装与系统集成创新。
Abstract
Integrated optical phased arrays (OPAs) capable of
adaptive beamforming and beam steering enable a wide range
of applications. For many of these applications, a large scale 2-D
OPA with full phase control for each radiating element is essential
to achieve a functional low-cost solution. However, the scalability
of such OPAs has been hampered by the optical feed distribution
difficulties in a planar photonics process, as well as the high
power consumption associated with having a large number of
p