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首页> 美国政府科技报告 >Aerospace Sensor Component and Subsystem Investigation and Innovation-2 Component Exploration and Development (ASCII-2 CED). Delivery Order 0002: Volume 2. Reconfigurable Aperture Antenna Virtual Prototyping (Wideband Lumped Circuit Models for Integrated Spiral Inductors)
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Aerospace Sensor Component and Subsystem Investigation and Innovation-2 Component Exploration and Development (ASCII-2 CED). Delivery Order 0002: Volume 2. Reconfigurable Aperture Antenna Virtual Prototyping (Wideband Lumped Circuit Models for Integrated Spiral Inductors)

机译：航空航天传感器组件和子系统调查与创新-2组件探索与开发（asCII-2 CED）。交付订单0002：第2卷。可重新配置的孔径天线虚拟原型（用于集成螺旋电感的宽带集总电路模型）

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As the speed of transistors has risen in recent years, acquiring accurate models for the passive devices used in integrated circuits has become a greater challenge. Current device speeds are in the tens of GHz, and at these frequencies the parasitic effects of inductors can become difficult to predict. At GHz level frequencies, monolithic inductors suffer from severe parasitic effects. The relatively large size of the inductor (hundreds of microns), and the high dielectric constant of the substrate, cause the inductor to experience significant capacitive coupling. The skin effect, along with the fields coupling into a lossy substrate, causes the structures to dissipate a significant amount of power. Additionally, the effect of eddy currents must be understood as they too result in power loss. These parasitic effects result in a limited peak Q. Since many RF circuits such as LNA's and VCO's require inductors with a high Q, it is critical for the circuit designer to accurately model these parasitics.

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