대한전자공학회:학술대회논문집 (Proceedings of the IEEK Conference)

대한전자공학회 (The Institute of Electronics and Information Engineers)
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마이크로스트립 라인 급전 QMSA의 특성 연구

A Study of Microstrip Line Fed QMSA Characteristics

  • 김은용 (조선대학교 대학원) ;
  • 박옥동 (조선대학교 산업대학원) ;
  • 류현 (목포 과학대학 정보통신과) ;
  • 이남렬 (전남 과학대학 정보통신과) ;
  • 박성교 (조선대학교 공과대학 전자.정보통신공학부) ;
  • 박종백 (조선대학교 공과대학 전자.정보통신공학부)
  • 발행 : 1999.06.01
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초록

We designed and fabricated microstrip line fed QMSAs(Quarter-Wavelength Microstrip Antenna) for 850〔MHz〕 band on the CGP-500 Copper-clad Laminates substrate (CHUKOH company) with $\varepsilon$$_{r}$＝2.6, H＝1.6〔mm〕( $\pm$0.08), where the width of the radiation patch is identical with that of the ground plane. The resonant frequencies and the return losses were measured by reducing the PSW(Partially Shorted Width) to 0〔mm〕, step by step, when the microstrip line width was 1.47〔mm〕, 2.93〔mm〕and 4.4〔mm〕separately. As a result, a good characterized antenna with a 11% reduced resonant length and a return loss -29.44〔㏈〕 was obtained when the total PSW was in the range of 70% of radiated patch width, compared to the conventional QMSA.A.

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