E-plane waveguide filters with partially filled dielectrics for wide bandwidth

Authors
Citation
Fl. Liu et Sj. Xu, E-plane waveguide filters with partially filled dielectrics for wide bandwidth, MICROW OPT, 31(3), 2001, pp. 175-177
Citations number
14
Categorie Soggetti
Optics & Acoustics
Journal title
MICROWAVE AND OPTICAL TECHNOLOGY LETTERS
ISSN journal
08952477 → ACNP
Volume
31
Issue
3
Year of publication
2001
Pages
175 - 177
Database
ISI
SICI code
0895-2477(20011105)31:3<175:EWFWPF>2.0.ZU;2-V
Abstract
A partially dielectric-filled waveguide bifurcation structure is proposed t o realize wideband bandpass filters. By using modal expansion and matching the tangential fields at the discontinuity, a variational expression for th e input admittance is obtained. The Ritz method is used to form a group of linear equations from which the actual admittance can be obtained; then the equivalent-circuit parameters of the discontinuity are achieved. It is con firmed that the structure is capable of realizing wideband filters. A numer ical analysis of a filter example is conducted to justify the validity. (C) 2001 John Wiley & Sons, Inc.