AN EQUIVALENT CIRCUIT MODELING METHOD FOR ULTRA-WIDEBAND ANTENNAS
AN EQUIVALENT CIRCUIT MODELING METHOD FOR ULTRA-WIDEBAND ANTENNAS
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DOI：
10.2528/pier08032303
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发表时间：
2008
影响因子：
6.7
通讯作者：
Yong Wang;Jiazi Li;L. Ran
中科院分区：
文献类型：
--
作者：
Yong Wang;Jiazi Li;L. Ran
本文提出了一种有效的超宽带 (UWB) 天线建模方法。该方法基于用宏观模型增强现有窄带模型，同时扰动窄带模型的分量值。窄带模型是基于经验的电路，有理函数描述的宏观模型是使用数据拟合方法确定的。窄带模型的元件值的扰动是通过SPICE的调整来实现的。该方法在 UWB 系统的 2.5 cm 偶极天线和圆盘单极天线示例中进行了演示。仿真结果表明，该方法在较宽的带宽内有效，适用于大多数 UWB 天线的建模。
This paper presents an effective modeling methodology for Ultra-wideband (UWB) antennas. The methodology is based on augmenting an existing narrow-band model with a macro-model while simultaneously perturbing component values of the narrow-band model. The narrow-band model is an empirical-based circuit and the macro-model described by rational functions is determined using data fitting approaches. The perturbation of component values of the narrow-band model is achieved by adjustments in SPICE. This method is demonstrated on the example of a 2.5 cm dipole antenna and a circular disc monopole antenna for UWB systems. Simulation results show that this methodology is effective over a wide bandwidth and suitable for modeling most UWB antennas.