Retrodirective array immune to incident waves with arbitrary polarizations

Jun H. Choi, Yuandan Dong, Jim S. Sun, Tatsuo Itoh

Research output: Contribution to journalArticlepeer-review

7 Scopus citations


A retrodirective array (RDA) capable of retransmitting predictable polarization with respect to any received polarization state is presented. RDAs have the unique ability to scatter the received signal back to the interrogator without prior knowledge of the source location. In addition to this unique feature, the proposed system can receive any polarization and always retransmits the signal that is orthogonally polarized with respect to the received polarization state. This added feature helps to maintain a more stable communication link between the RDA and the interrogator by mitigating the polarization mismatch loss. The proposed system shows excellent retrodirectivity for various received linear and circular polarizations.

Original languageEnglish (US)
Article number6595055
Pages (from-to)6008-6013
Number of pages6
JournalIEEE Transactions on Antennas and Propagation
Issue number12
StatePublished - Dec 2013


  • Orthogonal polarization
  • Phase conjugation
  • Phased array
  • Polarization friendly
  • Retrodirective array

ASJC Scopus subject areas

  • Electrical and Electronic Engineering


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