Gain-enhanced linearly tapered slot antenna with half-circular slotted side edges

Dae Myoung In, Seongmin Pyo, Min Jae Lee, Young Sik Kim

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)


In this article, a new linearly tapered slot antenna (LTSA) with half-circular slots (HCSs) embedded on both edge-sides is proposed for improving antenna gain. The side lobe levels of the LTSA are lowered as these HCSs may alter the surface current intensities on both edge-sides. As the half-circular size is increased, the 3-dB beamwidths of the proposed antenna are decreased in E- and H-plane, respectively. The measured gain is improved in a whole Ku-band (12.4-18.5 GHz), and it has a maximum gain of 14.8 dB at the design frequency of 15 GHz.

Original languageEnglish
Pages (from-to)686-688
Number of pages3
JournalMicrowave and Optical Technology Letters
Issue number3
Publication statusPublished - 2011 Mar


  • antenna gain
  • linearly tapered slot antenna
  • radiation pattern

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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