Power synthesis at low frequencies in the sub-THz gap

Jiaqi Zhao, Zhongbo Zhu, Bin Zhang, Dexin Ye, Changzhi Li, Lixin Ran

Research output: Contribution to journalConference articlepeer-review


Terahertz (THz) technology is one of the research fronts in the microwave society. In this paper, we investigate the possibility of power synthesis at low-THz frequencies based on discrete THz sources. We show that by applying precision digital phase control, such a power synthesis can be achieved, overcoming the difficulty of phase alignment at these frequencies. For demonstration, we implement a 0.11-THz prototype system based on state of the art F-PLLs and IMPATT diodes. Experimental results validate the proposed approach. With increased wide digital bit width, our method can be effectively used at all sub- and low-THz frequencies in the THz gap, providing an alternative thought to achieve high-power THz waves.

Original languageEnglish
Article number7129747
Pages (from-to)26-28
Number of pages3
JournalIEEE Radio and Wireless Symposium, RWS
Issue numberJune
StatePublished - Jun 19 2015
Event2015 IEEE Radio and Wireless Symposium, RWS 2015 - RWW 2015 - San Diego, United States
Duration: Jan 25 2015Jan 28 2015


  • Power synthesis
  • phase control
  • phase-locked loop
  • terahertz

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