A tutorial on microwave photonic filters
A tutorial on microwave photonic filters
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DOI：
10.1109/jlt.2005.860478
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发表时间：
2006-01-01
影响因子：
4.7
通讯作者：
Pastor, D
中科院分区：
文献类型：
--
作者：
Capmany, J;Ortega, B;Pastor, D
微波光子滤波器是一种光子子系统，其设计目的是在射频（RF）系统或链路中承担与普通微波滤波器相同的任务，从而带来光子学固有的补充优势，如低损耗、高带宽、抗电磁干扰（EMI）、可调性和可重构性。人们对这一主题的兴趣越来越大，因为一方面，新兴的宽带无线接入网络和标准跨越了从通用移动电信系统（UNITS）到固定接入单蜂窝网络，包括无线局域网（WLAN）、微波接入世界互操作性公司（WIMAX）、本地多点分布服务（LMDS）等，需要通过减少覆盖区域来增加容量。实现这一目标的一种使能技术是基于光纤无线电（RoF）系统，其中信号处理在中央办公室进行，信号从廉价的远程天线单元（rau）传输。另一方面，微波光子滤波器可以在雷达和相控阵天线的光子波束控制等专业领域中找到应用，其中动态重构是一个附加价值。本文为不直接在该领域工作但有兴趣获得该主题的总体介绍的读者以及希望在研究该主题之前获得全面背景的研究人员提供了本主题的教程介绍。
Microwave photonic filters are photonic subsystems designed with the aim of carrying equivalent tasks to those of an ordinary microwave filter within a radio frequency (RF) system or link, bringing supplementary advantages inherent to photonics such as low loss, high bandwidth, immunity to electromagnetic interference (EMI), tunability, and reconfigurability. There is an increasing interest in this subject since, on one hand, emerging broadband wireless access networks and standards spanning from universal mobile telecommunications system (UNITS) to fixed access picocellular networks and including wireless local area network (WLAN), World Interoperability for Microwave Access, Inc. (WIMAX), local multipoint distribution service (LMDS), etc., require an increase in capacity by reducing the coverage area. An enabling technology to obtain this objective is based on radio-over-fiber (RoF) systems where signal processing is carried at a central office to where signals are carried from inexpensive remote antenna units (RAUs). On the other hand, microwave photonic filters can find applications in specialized fields such as radar and photonic beamsteering of phased-arrayed antennas, where dynamical reconfiguration is an added value. This paper provides a tutorial introduction of this subject to the reader not working directly in the field but interested in getting an overall introduction of the subject and also to the researcher wishing to get a comprehensive background before working on the subject.