대한전자공학회:학술대회논문집 (Proceedings of the IEEK Conference)

대한전자공학회 (The Institute of Electronics and Information Engineers)
권호 표지

부분 단락 QMSA의 특성 연구

A Study of Partially Shorted QMSA Characteristics

  • 김은용 (조선대학교 대학원) ;
  • 황선화 (조선대학교 대학원) ;
  • 조민기 (조선대학교 산업대학원) ;
  • 박준영 (조선대학교 산업대학원) ;
  • 박성교 (조선대학교 공과대학 전자·정보통신공학부) ;
  • 박종백 (조선대학교 공과대학 전자·정보통신공학부)
  • 발행 : 1999.11.01
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초록

We designed and fabricated partially shorted QMSAs(Quarter-Wavelength Microstrip Antennas) for 850［MHz］band on various Copper-clad Laminates substrates (TACONIC company), where the width of the radiation patch is identical with that of the ground plane and the radiation patch is partially shorted to the ground plane. The resonant frequencies and the return losses according to the electrical thickness were measured by reducing the PSW (Partially Shorted Width) to 0［mm］. As a result, a good characterized antenna with an average 11% reduced resonant length and a return loss -15.86~-30.68［㏈］ was obtained when the total PSW was in the range of 70% of radiated patch width, compared to the conventional QMSA.

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