Modeling and design of millimeter-wave Marchand balun based on three-conductor coupled line
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Jiangsu University

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    Abstract:

    A novel broadband circuit model for millimeter-wave Marchand balun using three-conductor coupled line was proposed. Based on the c-mode and π-mode theory, the three-conductor coupled line was analyzed and modeled by the transmission line and several ideal transformers. The model parameters are extracted from the electromagnetic simulation and then the coupled line model is utilized to build the model of the Marchand balun. Using the proposed model, a millimeter-wave Marchand balun was designed and fabricated in GaAs process. The balun works at the frequency range from 15 GHz to 55 GHz, the measurement results show that the balun has good amplitude and phase imbalance performance and verify the model as well.

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XU Lei-Jun, HUANG Bo, BAI Xue, PAN Tian-Hong. Modeling and design of millimeter-wave Marchand balun based on three-conductor coupled line[J]. Journal of Infrared and Millimeter Waves,2015,34(6):705~709

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History
  • Received:December 16,2014
  • Revised:September 23,2015
  • Adopted:July 13,2015
  • Online: December 01,2015
  • Published: