특성모드 이론을 이용한 주기적인 축방향 슬롯이 있는 동축선로 도파관 구조의 산란특성 : TE의 경우

Scattering of Coaxial Waveguide with Periodic Axial Slots Using Characteristic Mode Theory : TE Case

  • 윤리호 (경북대학교 전자공학과) ;
  • 조영기 (경북대학교 전자공학과)
  • 발행 : 1997.12.01

초록

주기적인 축방향 슬롯이 있는 동축선로 도파관 구조에 TE 편파가 입사될 때 특성모드 이론(characteristic mode theory)을 사용하여 가중 고유방정식(weighted eigenvalue equation)을 유도하고, 일반적인 수치방볍 으로 특성값(characteristic values)과 특성전류(characteristic currents)를 구하여 미지의 등가 자기전류, 산 란패턴과 RCS(radar cross section)를 구하였다. 그리고 이 수치 결과들을 모멘트법을 이용하여 구한 결과들과 각각 비교하여 특성모드에 의한 해석방볍의 타당성을 보였다.

The theory of characteristic modes for coaxial waveguide with periodic axial slots is used to derive the weighted eigenvalue equation for calculating the characteristic values and the characteristic currents. Once the characteristic values and the characteristic currents are obtained, the important quantities such as the equivalent magnetic current, radiation patterns, and RCS are determined. Numerical results of the equivalent magnetic currents, radiation patterns, and RCS are compared with those obtained by use of the method of moments. A fairly good correspondence is observed between them.

키워드

참고문헌

  1. IEE Proc. H v.140 no.5 Radar cross-section of dielectric-coated conducting cylinder loaded with periodic metallic strips using mixed SDM, CGM, and FET:TE incidence W. Hong;Z. Zhu
  2. IEEE Trans. Ant. and Propagat. v.40 no.2 Characteristic modes of a slot in a conducting cylinder and their use for penetration and scattering, TEcase A.E. Hajj;K.Y. Kabalan;R.F. Harrington
  3. IEEE Trans. Electromagnetic Compatibility v.36 no.3 Sactteringfrom and penetration into a dielectric filled conducting cylinder with multiple apertures A. E. Hijj;K.Y. Kabalab
  4. Journal of KITE v.32-A no.7 Characteristic modes of a longitudinal slot in the outer conductor of coaxial waveguide for scattering : TE case L.H. Yun;Y.K. Cho
  5. KALA Numerical recipes in FORTRAN W.H. Press'S.A. Teukolsky;W.T. Vetterling;B.P. Flannery