CAJ | 학술논문

利用等效电流源代替集总元件的贡献，将该等效电流源加入到 Laguerre 多项式表达的麦克斯韦方程中，推导得到了将电磁场和集总元件相结合的 Laguerre-FDTD 方法迭代式，克服了柯西稳定性条件限制。仿真了包含集总元件的微带电路，计算结果与 Crank-Nicolson 时域有限差分方法（CN-FDTD）、商用仿真软件 ADS 进行了比较，证明了所推导迭代式的正确性和有效性。
이용등효전류원대체집총원건적공헌，장해등효전류원가입도 Laguerre 다항식표체적맥극사위방정중，추도득도료장전자장화집총원건상결합적 Laguerre-FDTD 방법질대식，극복료가서은정성조건한제。방진료포함집총원건적미대전로，계산결과여 Crank-Nicolson 시역유한차분방법（CN-FDTD）、상용방진연건 ADS 진행료비교，증명료소추도질대식적정학성화유효성。
The implementation of the lumped-element combined with the electromagnetic field by the Laguerre finite-difference time-domain (Laguerre-FDTD)algorithm is presented.The lumped element component placed between two nodes is characterized by an equivalent current source,which can be added to the Maxwell’equations.The stability condition is no longer affected by the Courant-Friedrich-Levy condition (CFL)and the time step.A microstrip circuit with different lumped component is simulated by Laguerre-FDTD.The comparisons with CN-FDTD and commercial simulation tool ADS prove the correctness and effective-ness of proposed method.