AI 中文总结
研究使用铁电电容器设计环形射频移相器，提出新方案，具有连续无界相位缠绕等特性，给出400和800MHz优化实现，在速度、损耗、功率等方面超越同类，改进了锯齿波铁电频率转换器。
AI 中文摘要
本文设计了一种使用铁电电容器的环形射频（RF）移相器。在等效电路框架下提出并研究了一种环形射频移相器的新方案。该移相器具有连续无界的相位缠绕特性，同时每个控制电压执行有界的周期性循环。除了环形特性外，它还具有极低的插入损耗、高速和高功率能力。给出了在400和800MHz下的优化实现，考虑全导体损耗时平均插入损耗分别为0.19和0.28dB。每转几微秒的相位超前率仅受偏置电子设备限制，通过堆叠晶圆结构可实现约100kW的功率能力。瞬时带宽约2.5%受损耗限制而非机制限制。该设计在速度、损耗和功率方面超越了文献中最好的环形移相器——旋转场铁氧体器件，并在效率和驱动电子设备要求方面改进了锯齿波铁电频率转换器。
英文摘要
An endless radio-frequency (RF) phase shifter is designed using ferroelectric capacitors. An endless phase winds continuously and without bound while every control voltage executes a bounded periodic cycle. A new scheme for an endless RF phase shifter is proposed and studied in the framework of an equivalent circuit. Besides the endless property, this phase shifter offers an exceptionally low insertion-loss, high-speed and high-power capability. The device may perform as an exact frequency translator whose offset is locked to the bias repetition frequency. Optimized realizations are given at 400 and 800 MHz with full conductor-loss accounting: 0.19 and 0.28 dB average insertion loss. A phase advance rate of a few microseconds per turn is limited only by the bias electronics, and power capability on the order of 100 kW may be achieved through stacked-wafer construction. An instantaneous bandwidth of approximately 2.5% is loss-limited rather than mechanism-limited. The design surpasses the best endless phase shifter in the literature, the rotary-field ferrite device, in speed, loss, and power, and improves on the serrodyne ferroelectric frequency translator in efficiency and drive electronics requirements.
Comments6 pages, 4 figures, 3 tables
