Enabling electrically tunable radio frequency components with advanced microfabrication and thin film techniques

Multi-function,multiband,cost-effective,miniaturized reconfigurable radio frequency(RF)components are highly demanded in modern and future wireless communication systems.This paper discusses the needs and implementation of multiband reconfigurable RF components with microfabrication techniques and advanced materials.RF applications of fabrication methods such as surface and bulk micromachining techniques are reviewed,especially on the development of RF microelectromechanical systems(MEMS)and other tunable components.Works on the application of ferroelectric and ferromagnetic materials are investigated,which enables RF components with continuous tunability,reduced size,and enhanced performance.Methods and strategies with nano-patterning to improve high frequency characteristics of ferromagnetic thin film(e.g.,ferromagnetic resonance frequency and losses)and their applications on the development of fully electrically tunable RF components are fully demonstrated.

基于SCA射频综合的L波段波形组件研究

文章研究在射频综合系统下传统L波段功能应用由单一应用转向射频系统综合化的设计方法。首先分析了传统典型L波段塔康、ATC的工作原理,然后根据传统超外差式的波形信号处理方法,提取了三种波形的共性并进行小颗粒度组件化分析。同时,针对特定波形的特定功能模块,进行了特定波形组件分析。最后,根据软件通信体系架构(以下简称SCA)设计约束对波形应用进行组件化设计。根据设计完成入波形组件库的波形应用组件,通过对组件管理与波形生成,得到了新的波形应用。采用组件化后的设计,在未来的新波形体制生成、波形应用管理等领域具有广阔的前景,符合未来软件无线电技术的发展。