Micromechanical circuits for communication transceivers
Micromechanical circuits for communication transceivers
复制标题
用于通信收发器的微机械电路
DOI：
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发表时间：
2000
期刊：
影响因子：
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通讯作者：
C. Nguyen
中科院分区：
文献类型：
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作者：
C. Nguyen
描述了通过IC兼容的MEMS技术制造并能够低损耗滤波、混频、开关和频率产生的微机械(或/SPLMU/机械)通信电路，目的是使无线收发机小型化。然后提出了最佳利用微小尺寸、零直流功耗和超高Q值的振动/SPLMU/机械谐振器电路的接收器架构。在提出的更具进取性的架构中，有一种基于/SPLMU/机械式射频通道选择器，另一种具有全MEMS射频前端。这些架构通过大规模使用高选择性、低损耗/SPL MU/机械电路，充分利用Q与功率之间的权衡，最大限度地提高了性能。微机械过滤器、混频过滤器和可切换合成器被认为是在上述架构中使用时能够大幅节能的关键模块。作为这一架构实践的结果，确定了RFMEMS进一步研究和开发的更有针对性的方向。
Micromechanical (or /spl mu/mechanical) communication circuits fabricated via IC-compatible MEMS technologies and capable of low-loss filtering, mixing, switching, and frequency generation, are described with the intent to miniaturize wireless transceivers. Receiver architectures are then proposed that best harness the tiny size, zero DC power dissipation, and ultra-high-Q of vibrating /spl mu/mechanical resonator circuits. Among the more aggressive architectures proposed are one based on a /spl mu/mechanical RF channel-selector and one featuring an all-MEMS RF front-end. These architectures maximize performance gains by using highly selective, low-loss /spl mu/mechanical circuits on a massive scale, taking full advantage of Q versus power trade-offs. Micromechanical filters, mixer-filters, and switchable synthesizers are identified as key blocks capable of substantial power savings when used in the aforementioned architectures. As a result of this architectural exercise, more focused directions for further research and development in RF MEMS are identified.