Circularly polarized microstrip Yagi antenna array with tilted beam for improved monopulse characteristics

Deok Kyu Kong, Daewoong Woo, Jaesik Kim, Young J. Yoon

Research output: Contribution to journalArticlepeer-review

Abstract

An antenna array composed of four inclined microstrip Yagi antennas is proposed for a direction finding (DF) system operated in L band. Each element antenna is designed to have a tilted beam toward a central array axis in order to have high gain in the boresight axis of the antenna array. In comparison to a patch antenna array, having the same structure, antenna array gain is improved by a 2.3 dB maximum around the array axis, monopulse slope is increased by 72% and the linearity of the slope is improved significantly. Also, axial ratio is improved by 3 dB max within ±25° from boresight.

Original languageEnglish
Pages (from-to)2971-2975
Number of pages5
JournalMicrowave and Optical Technology Letters
Volume62
Issue number9
DOIs
Publication statusPublished - 2020 Sep 1

Bibliographical note

Publisher Copyright:
© 2020 Wiley Periodicals, Inc.

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

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