Optimum approximation functions for lumped element quadrature hybrids

Authors
Andrews, DP Aitchison, CS
Citation
Dp. Andrews et Cs. Aitchison, Optimum approximation functions for lumped element quadrature hybrids, IEE P-CIRC, 148(1), 2001, pp. 5-9
Citations number
7
Categorie Soggetti
Eletrical & Eletronics Engineeing
Journal title
IEE PROCEEDINGS-CIRCUITS DEVICES AND SYSTEMS
ISSN journal
13502409 → ACNP
Volume
148
Issue
1
Year of publication
2001
Pages
5 - 9
Database
ISI
SICI code
1350-2409(200102)148:1<5:OAFFLE>2.0.ZU;2-E
Abstract
The theory of a class of rational Chebychev functions is presented, forming the basis of optimum approximation functions that determine the response o f lumped element quadrature hybrids of suitable design. Analytical solution s are presented, allowing the designer to determine the order of function r equired to meet a given divider specification and to predict the performanc e: over frequency.