A 436-to-467GHz Lens-Integrated Reconfigurable Radiating Source with Continuous 2D Steering and Multi-Beam Operations in 65nm CMOS

📋 论文概要

该论文提出了一种集成透镜的可重构辐射源，工作在436-467GHz太赫兹频段，能够实现连续的二维波束扫描和多波束操作，旨在解决传统太赫兹成像系统中高方向性、快速扫描与低功耗之间的矛盾。

💡 主要创新点

• 在太赫兹频段首次实现了集透镜的可重构辐射源，支持连续二维波束控制，提高了方向性和扫描速度。
• 通过可重构设计，支持多波束操作，适用于高分辨率成像和传感应用。

🏷 关键词

📄 原文摘要

High-resolution and fast imaging/sensing at THz requires highly directive steerable beams for scanning the object. A coherent array of coupled sources could improve the radiated power but requires mechanical and slow scanning of the object [1]. Phased array systems could use beam steering to scan the object at a higher speed, but in both coherent-array and phased-array systems, large array sizes with high power consumption are needed to generate a highly directive and narrow beam for high image resolution [2-4]. Although Si lens can be used to increase directivity in a phased array, the steering capability is significantly diminished [5]. Therefore, arrays of non-coherent sources are used with Si lens to illuminate different parts of the object with each source with high directivity [6]. The firing angle of each source is determined by the ratio of its displacement (Ldis) from the lens center to the lens radius (Rlens), as shown in Fig. 23.2.1

👥 作者与机构

Hossein Jalili, Omeed Momeni

University of California, Davis, CA