A 93-to-113GHz BiCMOS 9-element imaging array receiver utilizing spatial-overlapping pixels with wideband phase and amplitude control

2013 IEEE International Solid-State Circuits Conference Digest of Technical Papers Pub Date : 2013-03-28 DOI:10.1109/ISSCC.2013.6487674

F. Caster, L. Gilreath, S. Pan, Z. Wang, F. Capolino, P. Heydari

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引用次数: 21

Abstract

Benefiting from aggressive feature size scaling, silicon technologies have recently shown the capability of implementing W-band imaging receivers with an image resolution of 1.5mm and temperature resolutions of less than 0.5K [1-4]. This paper extends the capability of an imaging array receiver by improving image resolution using the novel concept of spatial-overlapping sub-arrays and enhancing image capture time using a phased-array within an imaging array receiver (RX). Specifically, the design and implementation of a BiCMOS 9-element array RX consisting of four 2×2 overlapping sub-arrays is presented. The RF-path-sharing between neighboring sub-arrays leads to a reduction in the chip area by 40% as compared to a conventional imaging array consisting of four 2×2 non-overlapping sub-arrays, while improving the RX's spatial resolution due to the higher sub-array density. Each 2×2 sub-array in this imaging array RX forms a pixel (Fig. 8.5.1).

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一种93 ~ 113ghz BiCMOS 9元成像阵列接收机，利用空间重叠像素，宽带相位和幅度控制

得益于积极的特征尺寸缩放，硅技术最近显示出实现图像分辨率为1.5mm、温度分辨率低于0.5K的w波段成像接收器的能力[1-4]。本文通过使用空间重叠子阵列的新概念提高图像分辨率，并在成像阵列接收器(RX)内使用相控阵增强图像捕获时间，扩展了成像阵列接收器的能力。具体来说，介绍了由四个2×2重叠子阵列组成的BiCMOS 9元阵列RX的设计和实现。与由四个2×2非重叠子阵列组成的传统成像阵列相比，相邻子阵列之间的rf路径共享导致芯片面积减少40%，同时由于更高的子阵列密度，提高了RX的空间分辨率。该成像阵列RX中的每个2×2子阵列形成一个像素(图8.5.1)。

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2013 IEEE International Solid-State Circuits Conference Digest of Technical Papers

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