The Journal of Korean Institute of Electromagnetic Engineering and Science (한국전자파학회논문지)

The Korean Institute of Electromagnetic Engineering and Science (한국전자파학회)
권호 표지

Dual-Band Microstrip Antenna for ISM Band using Aperture Coupled Cross Patch

개구 결합된 십자형 패치를 이용한 ISM 대역용 이중대역 마이크로스트립 안테나

  • Published : 2003.05.01
Download PDF
⟨ Previous Next ⟩

Abstract

Dual-band microstrip antenna is designed for industrial-scientific-medical(ISM) band of 2.4 GHz and 5.8 GHz using finite-difference time-domain method(FDTD). Cross patch 130 by aperture in the ground plane of microstrip line is proposed as radiation element of antenna which is 2 rectangular patch is overlapped. To design antenna, change of input impedance is examined by length change of aperture and stub. And center frequency and - 10 dB bandwidth are investigated by change of length and width in radiation element. Measured result about reflection loss confirm that agree well with simulation results of FDTD and IE3D. And 3 dB beam width, front to back ratio and maximum gain is presented by measuring radiation pattern of antenna in frequency 2.43 GHz and 5.79 GHz.

시간영역 유한차분법을 이용하여 2.4 GHz와 5.8 GHz외 ISM 대역을 위한 이중대역 마이크로스트립 안테나를 설계한다. 2개의 구형 패치가 겹쳐진 십자형 패치를 안테나의 방사소자로 제안하고 급전 방식은 개구 결합을 이용한다. 안테나 설계를 위해 개구와 스터브 길이 변화에 따른 입력 임피던스의 변화를 살펴보고, 방사소자의 길이와 폭 변화에 따른 중심 주파수와 -10 dB대역폭을 고찰한다 반사손실에 대한 계산 결과를 IE3D의 해석 결과 및 측정 결과와 비교하여 잘 일치함을 확인하고, 주파수 2.43 GHz와 5.79 GHz에서 안테나의 방사패턴을 측정하여 -3 dB 빔폭, 전후방비 및 최대 이득을 제시한다.

Keywords

References

  1. IEEE Trans. Antennas Propagat. v.14 Numerical solution of initial boundary value problems involving Maxwell's equations in isotropic media K.S.Yee
  2. IEEE Microwave Theory Tech. v.36 Time-domain finite difference approach to the calculation of the frequency-dependent characteristics of microstrip discontinuities X.Zhang;K.K.Mei
  3. IEEE Trans. Antennas Propagat. v.34 Analysis of an Aperture coupled microstrip antenna P.L.Sullivan;D.H.Schaubert
  4. IEEE Trans. Antennas Propagat. v.39 A modal expansion method of analysis and measurement on aperture-coupled microstrip antenna A.Ittipiboon;Y.M.M.Antar;M.Cuhaci
  5. IEEE Antennas and Propagation Magazine v.39 Dual-freeuency patch antennas S.Maci;G.B.Gentili
  6. IEEE Microwave Theory Tech. v.43 FDTD analysis of magnetized ferrites: application to the calculation of dispersion characteristic of ferrite-loaded waveguides J.A.Pereda;L.A.Vielva;A.Vega;A.Prieto
  7. 한국전자파학회 논문지 v.11 no.7 YIG박막-GGG층 구조를 갖는 마이크로스트립 선로의 전파특성 해석 박기동;임영석
  8. IEEE Microwave Theory Tech. v.45 Reflection analysis of FDTD boundary conditions-Part II: Berenger's PML abosrbing layers D.T.Prescott;N.V.Shuley
  9. IEEE Microwave Theory Tech. v.44 GT-PML: generalized theory of perfectly matched layer and its application to the reflactionless truncation of finite-difference time-domain grids L.Zhao;A.C.Cangellaris
  10. IEEE Microwave Theory Tech. v.23 Numerical solution of steady-state electromagnetic scattering problems using the time -dependent Maxwell's equations A.Taflove;M.E.Brodwin
  11. CAD of Microstrip Antennas for Wireless Applications R.A.Sainati
  12. Micro News no.17 Small Planar Microstrip Antenna Technology 조영기