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| Experimental Study on the Vibration-tolerance Performance of a High-power SPDT Switch |
| Received:January 02, 2016 Revised:August 15, 2016 |
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| DOI：10.7643/ issn.1672-9242.2016.04.011 |
| KeyWord:high-power switch vibration SPDT |
| Author | Institution |
| MU Neng-wen |
Military Representative Bureau of Naval Equipment Department in Chongqing Region, Chongqing , China |
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| Abstract: |
| Objective In order to ensure that the high power switch vibration tolerance performance can meet the requirements of the application environment, the study on vibration tolerance performance for the high-power SPDT Switch was proposed in this paper. Methods Based on the implementation of switching DC signal random vibration test and high power RF signal random vibration test, the actual working ability and vibration limits were verified. The switching DC signal of step vibration test and high power RF signal of step vibration test were implemented for the first time. The SPDT transmission model established using the equivalent circuit method was applied for theoretical analysis on the effect of RF transmission transient fault caused by vibration. Results In DC signal and high power RF signal test, several short breaks occurred in the x and y direction for switch A, and the longest time of transient fault was 63.6 μs, whereas switch B passed all tests. At the same frequency, smaller parasitic capacitance meant higher isolation degree. With the same parasitic capacitance, the higher the frequency, the smaller the isolation degree was. Conclusion This paper realized the assessment of the vibration performance of switches and provides data support and solving method for the reliability design of high-power switch and vibration isolation design of the system, and therefore gives a good guidance. |
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