110 GHz notch-filter development at TEXTOR-94

被引：4
|
作者：
Krämer-Flecken, A [1 ]
Pysik, W [1 ]
Czymek, G [1 ]
机构：
[1] Forschungszentrum Julich GmbH, EURATOM Assoc, Inst Plasmaphys, Trilateral Euregio Cluster, D-52425 Julich, Germany
来源：
FUSION ENGINEERING AND DESIGN | 2001年 / 56-57卷
关键词：
TEXTOR-94; notch-filter; gyrotron; electron-cyclotron emission;
D O I：
10.1016/S0920-3796(01)00355-6
中图分类号：
TL [原子能技术]; O571 [原子核物理学];
学科分类号：
0827 ; 082701 ;
摘要：
After the installation of a 110 GHz gyrotron at TEXTOR-94 the development of 110 GHz notch-filter was necessary for protecting the sensitive Electron Cyclotron Emission (ECE)-diagnostic, covering the frequency range 104 less than or equal to f less than or equal to 148 GHz. The design and construction of a narrow (Deltaf less than or equal to 1000 MHz) and deep (A(max) greater than or equal to 50 dB) notch filter is explained. Furthermore the behaviour at different modes is studied. Also the influence of the aperture on the width of the notch as well as the influence of the number of used cavities on the depth of the notch and the losses in the pass band is studied and presented in the paper. (C) 2001 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：639 / 643
页数：5
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