Xiao Chuanhong, Ren Ruizhe, Wu Zhenhua, Li Yijun, You Qing, Shi Zongjun, Zhang Kaichun, Chen Xiaoxing, Zhan Mingzhou, Liu Diwei, Zhong Renbin, Liu Shenggang
School of Electronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu 610054, China.
State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute, Sichuan University, Chengdu 610041, China.
Sensors (Basel). 2024 Sep 11;24(18):5891. doi: 10.3390/s24185891.
This paper presents a method to enhance extended interaction oscillator (EIO) output power based on a dual-cavity parallel structure (DCPS). This stucture consists of two conventional ladder-line structures in parallel through a connecting structure, which improves the coupling efficiency between the cavities. The dual output power fusion structure employs an H-T type combiner as the output coupler, which can effectively combine the two input waves in phase to further increase the output power. The dispersion characteristics, coupling impedance, and field distribution of the DCPS are investigated through numerical and simulation calculations, and the optimal operating parameters and output structure are obtained by PIC simulation. At an operating voltage of 12.6 kV, current density of 200 A/cm2, and longitudinal magnetic field of 0.5 T, the DCPS EIO exhibits an output power exceeding 600 W at a frequency of 140.6 GHz. This represents a nearly three-fold enhancement compared with the 195 W output of the conventional ladder-line EIO structure. These findings demonstrate the significant improvement in output power and interaction efficiency achieved by the DCPS for the EIO device.
本文提出了一种基于双腔并联结构（DCPS）提高扩展互作用振荡器（EIO）输出功率的方法。该结构由两个传统的梯形线结构通过一个连接结构并联组成，提高了腔之间的耦合效率。双输出功率融合结构采用H-T型合成器作为输出耦合器，可有效将两个输入波同相合成，进一步提高输出功率。通过数值和模拟计算研究了DCPS的色散特性、耦合阻抗和场分布，并通过PIC模拟获得了最佳工作参数和输出结构。在工作电压为12.6 kV、电流密度为200 A/cm²和纵向磁场为0.5 T时，DCPS EIO在140.6 GHz频率下输出功率超过600 W。与传统梯形线EIO结构195 W的输出相比，这几乎提高了两倍。这些结果表明，DCPS使EIO器件的输出功率和互作用效率得到了显著提高。
