Title

High-Resolution Tunable Microwave Filter Using Hybrid Analog-Digital Controls Via An Acoustooptic Tunable Filter And Figital Micromirror Device

Keywords

Microwave filters; Radar; Signal procesor

Abstract

A programmable broadband Radio Frequency (RF) filter is designed using a Digital Micromirror Device (DMD), an Acoustooptic Tunable Filter (AOTF), and a Chirped Fiber Bragg grating (CFBG). This hybrid analog-digital optical design enables implementation of RF filters with higher number of taps in comparison with an AOTF-only RF filter design and improved RF tunability in comparison with a DMD-only design. A 3-tap RF filter is theoretically analyzed and experimentally demonstrated using a combination of analog and digital optical tap selection. Filter nulls recorded at 6.90, 6.945, and 6.99 GHz show the tunability improvement with the hybrid design. Implementation of higher tap count filters can lead to similar improvements in filter tunability and pass-band and stop-band characteristics. © 2008 IEEE.

Publication Date

9-1-2008

Publication Title

Journal of Lightwave Technology

Volume

26

Issue

17

Number of Pages

3056-3061

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1109/JLT.2008.925045

Socpus ID

60149083682 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/60149083682

This document is currently not available here.

Share

COinS