2009
DOI: 10.1109/tap.2008.2009650
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An Equivalent Feed Model for the FDTD Analysis of Antennas Driven Through a Ground Plane by Coaxial Lines

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Cited by 26 publications
(20 citation statements)
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“…1(b), the coaxial aperture is a boundary surface between the cable and the antenna where equivalent source representation can be introduced. Here, we want to further modify the magnetic updating equations given in [18] to be applicable to the Cartesian coordinate system, in which an equivalent magnetic-frill current of the coaxial aperture can be represented by…”
Section: Equivalent Coaxial Feeding Modelmentioning
confidence: 99%
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“…1(b), the coaxial aperture is a boundary surface between the cable and the antenna where equivalent source representation can be introduced. Here, we want to further modify the magnetic updating equations given in [18] to be applicable to the Cartesian coordinate system, in which an equivalent magnetic-frill current of the coaxial aperture can be represented by…”
Section: Equivalent Coaxial Feeding Modelmentioning
confidence: 99%
“…The field and transmission line solvers are based on 3D and 1D FDTD methods, respectively, and we can accomplish the information exchange between space outside and inside the cables by using an equivalent feeding model [18] that is compatible with the FDTD method. In the circuit solver, the complex circuit termination is characterized and solved by the modified nodal analysis (MNA) method [19].…”
Section: Introductionmentioning
confidence: 99%
“…급전 영역은 안테나 의 관점에서 전원(source)이면서 동시에 전송선의 관점에 서는 부하(load)에 해당한다. 또한, 급전 영역의 전자계는 공간적 변화가 매우 심하므로, 안테나의 해석과 최적 설 계에 있어서 세심한 주의가 필요하다 [2], [3] .…”
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“…그런데, 급전 영역 주변에 서 전자계는 공간적으로 매우 급격한 변화를 겪게 되므 로, 급전 영역은 표준 FDTD의 정확성 조건에 비해서 좀 더 충분히 세밀한 격자(fine-grid)로 모델링해야 한다. 이 로 인하여 많은 계산용량이 필요할 뿐만 아니라, 계산시 간이 오래 걸리는 문제가 생긴다 [2], [3] . 이에 대한 대안으로 FDTD 계산 용량을 대폭 줄이면서도, 충분한 정확성을 유 지할 수 있는 등가 모델링 기법으로 급전점(feeding point) 에서 델타 갭(delta-gap) 또는 자기 프릴(magnetic-frill) 개 념을 FDTD에 도입한 등가 전원 모델이 여러 연구진에 의 해 개발되었다 [2][12] .…”
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