Miniaturized 60-GHz transformer-based balun splitter with isolation and matching performance in 0.18-μm SiGe BiCMOS
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Affiliation:

1.Dept. of Microwave Technology, China Academy of Space Technology (Xi’an), Xi’an 710049, China;2.School of Microelectronics, Tianjin University, Tianjin 300072, China;3.Singapore University of Technology and Design (SUTD), Singapore 487372

Clc Number:

TN433

Fund Project:

Supported by the National Natural Science Foundation of China (62001372).

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    Abstract:

    This paper presents the work of a miniaturized 60-GHz balun chip with isolation and matching performance fabricated in 0.18-μm SiGe BiCMOS process. The use of isolation circuit as key building blocks within a 60-GHz transformer balun leads to an improved isolation performance between output ports, while simultaneously achieving the matching performance of them. Moreover, compared to the conventional isolation circuit, the artificial left-handed transmission line is introduced to remove the bulky distributed elements, and the capacitive loading compensation technique is utilized for both matching and miniaturization. Both electromagnetic simulation and measurement results of the proposed 60-GHz transformer balun chip design with isolation and matching characteristics are given with good agreement. From measurement results, better than 25-dB isolation and 18-dB return loss of the output ports have been achieved at 60 GHz, with an occupied area of 0.022 mm2.

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ZHANG Da-Wei, XU Xin, LI Bin, XU Hui, YU Hong-Xi, LI Jun, MA Kai-Xue, THANGARASU Bharatha Kumar, YEO Kiat Seng. Miniaturized 60-GHz transformer-based balun splitter with isolation and matching performance in 0.18-μm SiGe BiCMOS[J]. Journal of Infrared and Millimeter Waves,2022,41(1):262~267

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History
  • Received:March 24,2021
  • Revised:January 17,2022
  • Adopted:April 30,2021
  • Online: January 06,2022
  • Published: