Differential-Series-Fed Dual-Polarized Traveling-Wave Array for Full-Duplex Applications

Yiming Zhang, Jia-Lin Li*

*Corresponding author

Research output: Contribution to journalJournal articleResearchpeer-review

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In this communication, an 8 × 8 dual-polarized traveling-wave antenna array is proposed and studied for in-band full-duplex applications. The proposed array consists of single-layer dual-polarized patch antennas with a simple feeding network. Despite the strong coupling among antenna elements, good suppression for the self-interference can be achieved by using differential feedings. To validate the study, an on-board prototype is developed, fabricated, and measured. The results show that good impedance matching responses are found, and high isolation of over 50 dB between the dual-polarized outputs is realized from less than 13.0 to 15.7 GHz. Meanwhile, small sidelobes and low cross-polarization levels with low insertion loss are observed, showing well-designed radiation responses.

Original languageEnglish
Article number8883256
JournalIEEE Transactions on Antennas and Propagation
Issue number5
Pages (from-to)4097-4102
Number of pages6
Publication statusPublished - May 2020


  • Differential feeding
  • full-duplex
  • radiation efficiency
  • self-interference
  • traveling wave

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