SONG Ming-xin1, YIN Jing-hua1, GUO Hai1. Performance analysis on RF MEMS switches based on insulating fluid filled applied in packaging[J]. 2012, 31(4): 53-55+59.
SONG Ming-xin1, YIN Jing-hua1, GUO Hai1. Performance analysis on RF MEMS switches based on insulating fluid filled applied in packaging[J]. 2012, 31(4): 53-55+59. DOI: 10.13873/j.1000-97872012.04.035.
A new structure of RF MEMS switches which is filled with insulating fluid in packaging is presented and designed and the basic working principle is analyzed.The transformer oil
castor oil and glycerin are used as insulating fluid.The influence of insulating fluid which fills RF MEMS switches on driving voltage
impact speed
response time and on-off capacitance characteristics is discussed by simulation analysis.The results show that the driving voltage is dropped to 1/εr times
the impact speed is effective reduced.Compared with the characteristics of three kinds of insulating fluid
the performances of the castor oil are excellent.The threshold voltage is dropped by half
about 10V.When the driving voltage is 20V
the response time of the castor oil is 40.6 μs which is better than the transformer oil(91.3 μs) and glycerin(89.9 μs)