单线法测量横向阻抗系统设计与模拟计算
Design of transverse impedance measurement setup and wire method simulation
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摘要: 介绍了单线法测量横向阻抗的基本原理、系统设计和初步模拟计算结果。单线法横向阻抗测量系统由待测元件/参考元件、内置导线、导线偏移调节机构、阻抗匹配段和测量仪器构成。调节机构可以精确调整内置导线的横向位置以激励偶极模式。利用微波工作室软件模拟计算待测元件（2 856 MHz“凸型”腔）的偶极模。“凸型”腔横向阻抗的幅值和偶极模频率的计算结果与ABCI程序数值计算的结果基本相符，说明了单线法横向阻抗测量系统理论上的可行性。Abstract: This paper presents the measurement principle and the design of transverse impedance measurement setup with the wire method. The transverse impedance measurement system with a single wire is composed of a device under test (DUT)/reference line (REF), an inner wire, an adjuster used to adjust the transverse position of inner wire precisely and to excite the dipole resonant mode of DUT, impedance matching section and measurement instrument. The dipole mode and the impedance of the device under test(DUT, 2 856 MHz gibbous cavity) simulated by Microwave Studio are in agreement with the data calculated by ABCI code. The results demonstrated the rationality of system design and availability of system.
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Key words:
- transverse impedance /
- longitudinal impedance /
- wire method /
- dipole mode
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