대한전자공학회논문지TC (Journal of the Institute of Electronics Engineers of Korea TC)

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

1차원 RLH-TL 방사효과 모델링 및 해석

Modeling and analysis of radiation effects for 1-D RLH-TL

  • 문효상 (경희대학교 전자정보대학) ;
  • 이범선 (경희대학교 전자정보대학)
  • Moon, Hyo-Sang (School of Electrics and Information, Department of Radio Communication Engineering, Kyunghee University) ;
  • Lee, Bom-Son (School of Electrics and Information, Department of Radio Communication Engineering, Kyunghee University)
  • 발행 : 2007.12.25
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초록

본 논문에서는 기존의 Right/left-handed 전송선(RLH-TL)에 집중 직렬 캐패시터와 병렬 인덕터 구현으로 발생하는 방사 효과를 포함하여 단위 셀을 모델링한다. 방사 효과가 고려된 RLH-TL 단위셀의 등가 회로를 제공하고 갭 커패시터와 션트 인터터에서의 방사율에 따른 Bloch 임피던스와 복소 전파상수를 해석한다. 두 개의 방사율이 같을 때 RLH-TL의 Block 임피던스는 RH-TL의 특성임피던스와 같아짐을 보인다. 게다가, 주어진 주파수에서 특정한 위상 변화를 위한 단위 셀의 설계 공식을 유도하여 제공한다. 마지막으로, 안테나 응용을 위해 RLH-TL에서 다양한 방법으로 방사효과를 control할 수 있는 설계 공식을 제공한다.

This paper presents the radiation rate formula due of a inclusion of a series capacitor and shunt inductor in a unit cell for the right/left-handed transmission line (RLH-TL). The equivalent circuit for a RLH unit cell considering radiation effects is presented and analyzed in terms of the Bloch impedance and dispersion diagram. It has been found that when two radiation rates are identical, the Blockimpedance reduces to the characteristic impedance of the host conventional RH-TL. Besides, design equations for a unit cell for a specific phase shift at a given frequency are provided. The method of realizing uniform excitation along the RLH-TL is also proposed for antenna applications.

키워드

참고문헌

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