Quasi-TEM description of MMIC coplanar lines including conductor-loss effects

Quasi-TEM description of MMIC coplanar lines including conductor-loss effects
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MMIC 共面线的准 TEM 描述(包括导体损耗效应)

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发表时间:
1993
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通讯作者:
W. Heinrich
W. Heinrich
中科院分区:
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文献类型:
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作者:
W. Heinrich

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提出了一种MMIC共面结构的准瞬变电磁模型。分布等效电路的元件是通过闭合形式近似计算的,因此可以很容易地实现到CAD软件包中。考虑了非理想导体的影响以及衬底损耗和有限的金属化厚度。该描述适用于整个准瞬变电磁范围,即从DC到毫米波频率的典型MMIC几何形状。通过与全波计算结果的比较,验证了模型的有效性。对于衰减典型值5-10%,有效介电常数和特性阻抗的误差在5%以下(最大为20%)。>
A quasi-TEM model of MMIC coplanar structures is presented. The elements of the distributed equivalent circuit are calculated by closed-form approximations and hence can easily be implemented into CAD packages. The effects of nonideal conductors are included as well as substrate loss and finite metallization thickness. The description holds for the entire quasi-TEM range, i.e. for typical MMIC geometries from DC to millimeter-wave frequencies. The validity of the model was checked by comparison to full-wave results. The errors for the effective dielectric constant and the characteristic impedance range below 5% for the attenuation typical values of 5-10% are found (maximum: 20%). >