Compact Millimeter-Wave SPDT Switches and Wilkinson Power Combiners Implemented by LC-Based Spiral Transmission Lines
Compact Millimeter-Wave SPDT Switches and Wilkinson Power Combiners Implemented by LC-Based Spiral Transmission Lines
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DOI：
10.1109/tmtt.2020.3042497
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发表时间：
2021-02
影响因子：
4.3
通讯作者：
Xiangyu Meng;C. Yue
中科院分区：
文献类型：
--
作者：
Xiangyu Meng;C. Yue
本文提出了一种基于LC的螺旋传输线结构，可以有效减少片上传输线的面积。该传输线结构实现的四分之一波长传输线可广泛应用于毫米波电路设计中。基于LC螺旋传输线结构，28GHz单刀双掷(SPDT)开关和37GHz威尔金森功率合成器在65nm CMOS中以仅0.028mm2的面积实现。测量结果表明，SPDT开关在20～35 GHz频率范围内插入损耗小于1.5 dB，隔离度优于23.7 dB。 Wilkinson 功率合成器在 36.9 GHz 时的插入损耗和隔离度分别为 0.9 和 30.3 dB。
This article proposes an LC-based spiral transmission line structure, which can effectively reduce the area of ON-chip transmission lines. The quarter-wavelength transmission line realized by this transmission line structure can be widely used in millimeter-wave circuits design. Based on the LC-based spiral transmission line structure, a 28-GHz single-pole double-throw (SPDT) switch and a 37-GHz Wilkinson power combiner are implemented with an area of only 0.028 mm2 in 65-nm CMOS. Measurement results indicate that the SPDT switch has an insertion loss of less than 1.5 dB and an isolation better than 23.7 dB in the frequency range from 20 to 35 GHz. The insertion loss and the isolation of the Wilkinson power combiner at 36.9 GHz is 0.9 and 30.3 dB, respectively.