Simplified Prediction of Peak Power-Handling Capability for Stepped-Impedance Low-Pass Filters

Author

De Paolis, Fabrizio ; Frezza, Fabrizio

Author_Institution

Eur. Space Agency-Eur. Space Res. & Technol. Centre (ESA-ESTEC), Noordwijk, Netherlands

Volume

61

Issue

3

fYear

2013

fDate

Mar-13

Firstpage

1079

Lastpage

1085

Abstract

Novel explicit formulas are introduced in this paper for the prediction of peak voltages and amplification factors in stepped-impedance coaxial and waveguide low-pass filters. Based on a coupling-matrix model and a simplified electromagnetic (EM) formulation, voltages in the filter critical areas are calculated analytically, without need of any 3-D EM simulations. Only filter prototype parameters are required in this method, which is therefore fast and considerably simplifies the power-handling analysis of corrugated filtering structures. The accuracy of the formulas is verified via commercial finite-difference time-domain software and multipactor breakdown test.

Keywords

low-pass filters; matrix algebra; waveguide filters; EM formulation; amplification factors; coaxial filters; commercial finite-difference time-domain software; corrugated filtering structures; coupling-matrix model; explicit formulas; filter critical areas; multipactor breakdown test; peak power-handling capability; peak voltages; simplified electromagnetic formulation; simplified prediction; stepped-impedance low-pass filters; waveguide filters; Filtering theory; Finite difference methods; Impedance; Low pass filters; Microwave filters; Prototypes; Time domain analysis; Equivalent circuits; microwave filters; periodic structures; power harmonic filters;

fLanguage

English

Journal_Title

Microwave Theory and Techniques, IEEE Transactions on

Publisher

ieee

ISSN

0018-9480

Type

jour

DOI

10.1109/TMTT.2013.2244225

Filename

6464530