| 1. | This dissertation gives the design project of this system , and analyzes each several part of this system . and this system is finally implemented by integrating mems apparatus , so the author investigates the new technology rf - mems , and finds out that the current rf - mems apparatus has some problems on practicability . the emphasis of this dissertation is the tunable filter in the adaptive rf channel 作者参与了整个系统以及各个模块的设计方案的讨论,整个系统最终是想通过mems器件集成实现,所以对rf - mems (射频微机电系统)这项新技术进行大量的调研,发现目前rf - mems器件在实用上还有一些关键技术有待解决,该课题第一步就采用常规的方法搭建自适应接收机前端的雏形。 |