Distributed Power Combiner and On-Chip Antennas for Sub-THz Multi-Band UWB Receivers

2018 IEEE International RF and Microwave Conference (RFM) Pub Date : 2018-12-01 DOI:10.1109/RFM.2018.8846483

P. V. Testa, B. Klein, Ronny Hannel, C. Carta, D. Plettemeier, F. Ellinger

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引用次数: 1

Abstract

This paper presents the analysis, the design, and the characterization of the first stage of a sub-THz receiver. The system consists of an on-chip two-time stacked Vivaldi-shaped open slot antenna and a fractal bowtie antenna integrated with a distributed power combiner. The integrated circuit is designed for operation in two wide frequency bands centered at 110GHz and 180 GHz. The employed fabrication process is a 130nm SiGe BiCMOS technology featuring HBTs with fmax of 450 GHz. A design procedure based on the co-design of antenna and amplifier predicted variations of the receiver gain within 3 dB in the frequency range of interest, confirmed with the experimental result. 5 dB of maximum gain has been demonstrated, with variation below 6 dB in the frequency range from 95 GHz to 125 GHz, and from 160 GHz to 200 GHz. Compared to the state of art, the presented design owns one of the largest reported absolute and relative frequency bandwidth of operation, and it is the first demonstration of multi- and wide-band operation in the frequency range 90 GHz – 220 GHz.

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用于次太赫兹多波段超宽带接收机的分布式功率组合器和片上天线

本文介绍了亚太赫兹接收机一级的分析、设计和特性。该系统由片上两次堆叠的vivaldi型开槽天线和集成分布式功率合成器的分形领结天线组成。该集成电路设计用于以110GHz和180ghz为中心的两个宽频段。采用的制造工艺是130nm SiGe BiCMOS技术，具有最大fmax为450 GHz的HBTs。基于天线和放大器协同设计的设计程序预测了在目标频率范围内接收器增益在3db以内的变化，并与实验结果相吻合。最大增益为5db，在95 GHz至125 GHz和160 GHz至200 GHz的频率范围内变化小于6db。与目前的技术水平相比，该设计拥有最大的绝对和相对频率带宽之一，并且是第一个在90 GHz - 220 GHz频率范围内实现多频段和宽带操作的演示。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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2018 IEEE International RF and Microwave Conference (RFM)

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