CAD of RF Windows Using Multiobjective Particle Swarm Optimization

Author

Chauhan, Narendra C. ; Kartikeyan, M.V. ; Mittal, Ankush

Author_Institution

Dept. of Electron. & Comput. Eng., Indian Inst. of Technol. Roorkee, Roorkee

Volume

37

Issue

6

fYear

2009

fDate

6/1/2009 12:00:00 AM

Firstpage

1104

Lastpage

1109

Abstract

In this paper, computer-aided design (CAD) of two types of RF windows, namely, double-disk RF window and pillbox-type RF window, is presented for use in high-power microwave/millimeter-wave sources. The design of double-disk RF window was carried out for 42-GHz band (TE_0,3 mode) and 170-GHz band (Gaussian mode), while the design of pillbox-type RF window was carried out for 2.856-GHz band. The requirement for the design of RF window is to minimize the reflections with exact matching at desired resonant frequency. In the present approach, a scattering-matrix code was invoked with recently developed particle swarm optimization (PSO) method in order to optimize the geometrical parameters of the window. Multiobjective optimizations using PSO have been used to achieve optimized tradeoff between matching of desired resonant frequency and minimizing the power reflections in the desired band of operation.

Keywords

CAD; UHF tubes; millimetre wave tubes; particle swarm optimisation; Gaussian mode; computer-aided design; double-disk RF window; frequency 170 GHz; frequency 2.856 GHz; frequency 42 GHz; geometrical parameters; high power microwave-millimeter-wave sources; multiobjective optimizations; multiobjective particle swarm optimization; pillbox-type RF window; power reflections; resonant frequency; scattering-matrix code; Gyrotrons; RF windows; particle swarm optimization;

fLanguage

English

Journal_Title

Plasma Science, IEEE Transactions on

Publisher

ieee

ISSN

0093-3813

Type

jour

DOI

10.1109/TPS.2009.2020589

Filename

4982718