Full Band Millimeter-Wave Power-Combining Amplifier Using a Lossy Power-Combining Network

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• 作者：Xiaoqiang Xie ; Guiting Yang ; Yunhua Zhang…
• 关键词：Bandwidth ; Isolation ; Loss ; Match ; Millimeter ; wave ; Power combining
• 刊名：International Journal of Infrared and Millimeter Waves
• 出版年：2016
• 出版时间：April 2016
• 年：2016
• 卷：37
• 期：4
• 页码：318-327
• 全文大小：1,025 KB
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  3.N.-W.Kim-Lien, J. Goel, C. Yeong-Chang, et al., “A V-band eight-way combined solid-state power amplifier with 12.8 Watt output power,” in IEEE MTT-S, 2005.
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  5.J. Jeong, Y. Kwon, D. S. Deakin, et al., “44 GHz waveguide-based power amplifier module using double antipodal finline transitions,” Electronics Lett., 38, no. 3, pp. 128–129, 2002.CrossRef
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  10.X. Xie, Q. Zhou, D. Li, “Millimetre-wave broadband waveguide-based power combiner using lossy planar lines,” Electronics Letters, vol. 50, Issue 23, pp. 1714-1715 2014.CrossRef
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  12.T. Q. Ho and Y. Shih, “Spectral-domain analysis of E-plane waveguide to microstrip transitions,” IEEE Trans. Microw. Theory Tech., vol. 37, no. 2, pp. 388–392, 1989.CrossRef
  
• 作者单位：Xiaoqiang Xie (1)
  Guiting Yang (1)
  Yunhua Zhang (1)
  Xuan Zhao (1)
  Yuchen She (1)
  
  1. EHF Key Laboratory of Fundamental Science, School of Electronic Engineering, University of Electronic Science and Technology of China, Chengdu, 611731, China
  
• 刊物类别：Physics and Astronomy
• 刊物主题：None Assigned
• 出版者：Springer New York
• ISSN：1866-6906

文摘

This paper presents a millimeter-wave broadband power-combining amplifier using a novel lossy waveguide-based power combiner. The lossy combiner has a performance of broadband low-loss combining symmetrically and has properties of good match and high isolation at and between ports, because lossy planar lines are embedded in the lossy combiner and even-mode excitations are weakened. The measured results show that the lossy combiners has a loss of about 0.14 dB and achieves reflection and isolation of about—15 dB in 26.5–40 GHz. And then, using the lossy combiner, a compact lossy waveguide-based four-way-combining network is fabricated. The lossy network has a measured loss of about 0.25 dB and achieves good improvements of match and isolation in the full Ka-band. The improvements can enhance stability of amplifying units when the lossy combining network used in multi-way power-combining amplifier. Using the lossy combining network, a solid-state power-combining amplifier is developed, and corresponding experimental results show that output power is more than 30 dBm and combining efficiency is more than 80 % in the full Ka-band.