A modified model of helical resonator with predictable loaded resonant frequency and Q-factor

作者：Deng K^*; Sun Y L; Yuan W H; Xu Z T; Zhang J; Lu Z H; Luo J

来源：Review of Scientific Instruments, 2014, 85(10): 104706.

DOI：10.1063/1.4897478

High voltage radio frequency (RF) supply is a critical part in an ion trapping system. The RF supply should have high Q-factor and relatively high driving frequency. A frequently used RF supply for an ion trap system is a helical resonator. In certain applications, it is advantageous to have a predictable resonant frequency and Q-factor when the helical resonator is connected to a capacitive load. We develop a model to describe the behavior of a helical resonator with capacitive load. With this model, we can correctly predict the loaded resonant frequency and the loaded Q-factor. To test our prediction, we construct a helical resonator, and measure its resonant frequencies and Q-factors under different capacitive loads. The experimental results agree with our prediction.

• 出版日期2014-10
• 单位华中科技大学