The continuously varying transmission-line technique - Application to filter design

Authors
Le Roy, M Perennec, A Toutain, S Calvez, LC
Citation
M. Le Roy et al., The continuously varying transmission-line technique - Application to filter design, IEEE MICR T, 47(9), 1999, pp. 1680-1687
Citations number
15
Categorie Soggetti
Eletrical & Eletronics Engineeing
Journal title
IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES
ISSN journal
00189480 → ACNP
Volume
47
Issue
9
Year of publication
1999
Part
1
Pages
1680 - 1687
Database
ISI
SICI code
0018-9480(199909)47:9<1680:TCVTT->2.0.ZU;2-5
Abstract
In this paper, an original approach to analyze and optimize continuously va rying transmission lines (CVTL's) is used to design planar microwave filter s. The method is based on exact solutions of the telegrapher's relations of nonuniform transmission lines. The CVTL scattering parameters are investig ated in detail in the frequency domain. In order to validate the method, se veral different CVTL's are built using microstrip and coplanar-waveguide te chnology, Measured data are presented and compared with theory over a wide frequency range.