Modeling of a millimeter wave planar Schottky diode using both improved equivalent circuit model and 3D-EM model

作者：Li, Li^*; Zhang, Yong; Zhao, Wei; Liu, Shuang; Xu, Ruimin

来源：Optik, 2014, 125(13): 3324-3327.

DOI：10.1016/j.ijleo.2013.12.055

• Schottky diode
• 3D-EM
• Equivalent circuit
• Millimeter wave

In this paper, a planar Schottky varistor diode is studied and modeled by equivalent circuit method and three dimensional full wave electromagnetic (3D-EM) method, respectively. The diode's equivalent circuit is extracted from millimeter-wave small-signal S-parameter measurements. Since the package of the diode influences the electromagnetic field distribution at millimeter and sub-millimeter wavelengths, a 3D-EM model and an improved equivalent circuit model is applied to describe the field precisely. The simulated results of equivalent circuit, improved equivalent circuit and 3D-EM model are compared with the measured results. In addition, the effects caused by silver paste conductive adhesive are considered in 3D-EM model and improved equivalent circuit model. The results show that both the 3D-EM model and improved equivalent circuit model have good S-parameter consistency with measured results.

• 出版日期2014
• 单位电子科技大学