Analysis of the Rectangular Microstrip Antenna with Parasitic Elements Considering the Mutual Coupling Characteristics

상호결합 특성이 고려된 기생소자를 갖는 구형 마이크로스트립 안테나 해석

  • Son, Geon-Ho (Dept. of Elec. Eng., Kyungpook Nat'l Univ.) ;
  • Yun, Li-Ho (Dept. of Elec. Eng., Kyungpook Nat'l Univ.) ;
  • Hong, Jae-Pyo (Dept. of Elec. Eng., Kyungpook Sanup Univ.) ;
  • Cho, Young-Ki (Dept. of Elec. Eng., Kyungpook Nat'l Univ.) ;
  • Son, Hyon (Dept. of Elec. Eng., Kyungpook Nat'l Univ.)
  • 손건호 (경북대학교 전자공학과) ;
  • 윤리호 (경북대학교 전자공학과) ;
  • 홍재표 (경북산업대학 전자공학과) ;
  • 조영기 (경북대학교 전자공학과) ;
  • 손현 (경북대학교 전자공학과)
  • Published : 1991.12.01

Abstract

In this paper, E-plane gap-coupled rectangular microstrip antennas with parasitic elements are analyzed. The mutual coupling between the radiating edges is represented as the voltage-dependent current source. The gap coupling between the patch and parasitic element is characterized with the REC(Radiating Edges-Coupling) model, and the conventional transmission line model is used to obtain the equivalent circuit of the antenna. The return loss of the rectangular microstrip antennas with short-and open-circuit parasitic elements are calculated and compared with the measured values. The theoretical values including the mutual coupling are more in agreement with the measured values than the calculated values without the mutual coupling.

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