Antipodal linearly tapered slot antenna using unequal half-circular defected sides for gain improvements

Dae Myoung In, Min Jae Lee, Donghyun Kim, Chang Yul Oh, Young Sik Kim

Research output: Contribution to journalArticle

15 Citations (Scopus)


In this Letter, a new antipodal linearly tapered slot antenna (ALTSA) with unequal half-circular slots (UHCS) embedded on both edge-sides is proposed to improve an antenna gain. The proposed antenna operates over the frequency band from 3.1 GHz to more than 10.6 GHz, which is assigned to Ultra-Wideband wireless communications. The proposed antenna has been improved in a gain and reduced to backward radiation due to the unequal half-circular slots on the ALTSA. The measured antenna gains are improved by up to 3.5 dB. The side lobe levels are lowered by about -14.8 and -7.2 dB in the E- and H-planes at 7 GHz, respectively.

Original languageEnglish
Pages (from-to)1963-1965
Number of pages3
JournalMicrowave and Optical Technology Letters
Issue number8
Publication statusPublished - 2012 Aug 1



  • LTSA
  • antenna gain
  • defected side

ASJC Scopus subject areas

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

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