A Review on Recent Progress of Portable Short-Range Noncontact Microwave Radar Systems

Changzhi Li, Zhengyu Peng, Tien Yu Huang, Tenglong Fan, Fu Kang Wang, Tzyy Sheng Horng, Jose Maria Munoz-Ferreras, Roberto Gomez-Garcia, Lixin Ran, Jenshan Lin

Research output: Contribution to journalReview articlepeer-review

243 Scopus citations


This paper reviews recent progress of portable short-range noncontact microwave radar systems for motion detection, positioning, and imaging applications. With the continuous advancements of modern semiconductor technologies and embedded computing, many functionalities that could only be achieved by bulky radar systems in the past are now integrated into portable devices with integrated circuit chips and printed circuits boards. These portable solutions are able to provide high motion detection sensitivity, excellent signal-to-noise ratio, and satisfactory range detection capability. Assisted by on-board signal processing algorithms, they can play important roles in various areas, such as health and elderly care, veterinary monitoring, human-computer interaction, structural monitoring, indoor tracking, and wind engineering. This paper reviews some system architectures and practical implementations for typical wireless sensing applications. It also discusses potential future developments for the next-generation portable smart radar systems.

Original languageEnglish
Article number7836309
Pages (from-to)1692-1706
Number of pages15
JournalIEEE Transactions on Microwave Theory and Techniques
Issue number5
StatePublished - May 2017


  • Doppler
  • frequency-modulated continuous wave (FMCW)
  • interferometry
  • inverse synthetic aperture radar (ISAR)
  • localization
  • radar
  • short range
  • time-frequency


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