Optical half-band filters

Autor:	K. Jinguji, M. Oguma
Rok vydání:	2000
Předmět:	Engineering business.industry 2D Filters Electronic engineering Elliptic filter Prototype filter Network synthesis filters Optical filter business Chebyshev filter Infinite impulse response Atomic and Molecular Physics and Optics m-derived filter
Zdroj:	Journal of Lightwave Technology. 18:252-259
ISSN:	1558-2213 0733-8724
Popis:	This paper proposes two kinds of novel 2/spl times/2 circuit configuration for finite-impulse response (FIR) half-band filters. These configurations can be transformed into each other by a symmetric transformation and their power transmittance is identical. The configurations have only about half the elements of conventional FIR lattice-form filters. We derive a design algorithm for achieving desired power transmittance spectra. We also describe 2/spl times/2 circuit configurations for infinite-impulse response (IIR) half-band filters. These configurations are designed to realize arbitrary-order IIR half-band filter characteristics by extending the conventional half-band circuit configuration used in millimeter-wave devices. We discuss their filter characteristics and confirm that they have a power half-band property. We demonstrate design examples including FIR maximally flat half-band filters, an FIR Chebyshev half-band filter, and an IIR elliptic half-band filter.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::c8a12b76710b01afbcd18b08c7e95893 https://doi.org/10.1109/50.822800 Zobrazit plný text záznamu