Automatic Impedance Matching Control Concepts for Sub-THz Amplifiers

AIM研究工作在次太赫兹频率（100-300 GHz）的放大器的小信号阻抗匹配控制的新方法。为了在单个芯片上实现控制单元和放大器的完全集成，我们探索了新的概念，例如只需要一个测试频率进行自校准以获得最大增益。自动控制将使亚太赫兹电路具有更高的良率和性能，更低的成本，更简单的设计和多标准操作。据此，对阻抗匹配网络和阻抗控制装置进行了研究和优化。理论和模型扩展了在如此高的频率下产生的影响和损失。采用快速BiCMOS技术对概念进行验证。

AIM studies novel approaches for the control of the small signal impedance matching of amplifiers operating up to sub-THz frequencies (100-300 GHz). To enable full integration of the control unit and the amplifier on a single chip, we explore novel concepts, which require e.g. only one test frequency for the self-calibration to get maximum gain. The automatic control shall enable higher yield and performance, lower costs, simpler design and multi-standard operation for sub-THz circuits. Accordingly, the impedance matching networks and impedance control devices are investigated and optimized. Theories and models are extended regarding the effects and losses arising at such high frequencies. Very fast BiCMOS technology is applied for the verification of the concepts.