Scattering Performance of Log-Periodic Dipole Array

Kei Yokokawa, Keisuke Konno, Qiang Chen

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)


In this letter, the scattering performance of a log-periodic dipole array (LPDA) is numerically and experimentally demonstrated. Radiation and scattering performance of the LPDA is shown. Numerical simulations clarify that a 3-dB bandwidth of an LPDA scatterer becomes narrow due to the distortion of its RCS pattern. Relation between the total length and bandwidth performance of the LPDA scatterer is numerically examined to extend its narrow bandwidth. The optimized LPDA scatterer achieves the bandwidth of 1:1.8. The optimized LPDA scatterer is fabricated, and the measured scattering performance is shown to confirm the numerical results.

Original languageEnglish
Article number7546931
Pages (from-to)740-743
Number of pages4
JournalIEEE Antennas and Wireless Propagation Letters
Publication statusPublished - 2017


  • Log-periodic dipole array (LPDA)
  • scattering
  • wideband

ASJC Scopus subject areas

  • Electrical and Electronic Engineering


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