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射频MEMS压控电容器 被引量:1

RF MEMS Voltage Control Capacitor
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摘要 研究了射频 MEMS压控电容器的设计和制造工艺。压控电容器的制作采用了 MEMS制造技术 ,其主要结构为硅衬底上制作金属传输线电极和介质层 ,然后制作金属膜桥作为电容器的另一个电极。通过改变加在金属膜桥与传输线间的电压达到改变电容值的目的。这种压控电容器可以工作于射频和微波波段 ,具有很高的Q值。测试结果如下 :在 1 GHz、0 V时 Q值达到 3 0 0 ,0偏压电容值为 0 .2 1 p F,当加上驱动电压后 Cmax/ Cmin的变比约为 4∶ The design and fabrication of a RF MEMS voltage control capacitor(VCC) is described. Si based MEMS techniques have been used to fabricate a metal membrane capacitor combined transmission line. An electrostatic potential is applied to the membrane and the transmission line ot tune the capacitance. The test results are as follows. The measured Q factor is 300 at 1 GHz for a 0.21 pF capacitor and C max / C min ratio of the VCC is about 4∶1.
出处 《固体电子学研究与进展》 EI CAS CSCD 北大核心 2002年第2期146-148,共3页 Research & Progress of SSE
基金 国家预研基金项目 (5 14 0 80 3 0 10 1DZ65 0 1) 江苏省自然科学基金项目 (BK2 0 0 1192 ) 江苏高技术研究项目 (BG2 0 0 10 2 0 )支持
关键词 射频 微机电系统 传输线 压控电容器 制造 介质层 金属膜桥 RF MEMS transmission line VCC
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参考文献3

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同被引文献18

  • 1卿健,石艳玲,赖宗声,朱自强.MEMS移相器及其在微型通信系统中的应用[J].微电子学,2002,32(4):241-244. 被引量:6
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  • 10[20]Dr. Ernest Potensiani. DAPPA Reconfigurable Aperture (RECAP) Program. U. S. Army Communication-Electronics Command Research Development and Engineering Center, 1999

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