Beam waveguide reflector with integrated direction-finding antenna for in-situ alignment

被引：19
|
作者：
Kasparek, W
Idei, H
Kubo, S
Notake, T
机构：
[1] Natl Inst Fus Sci, Toki 5095292, Japan
[2] Univ Stuttgart, Inst Plasmaforsch, D-70569 Stuttgart, Germany
来源：
INTERNATIONAL JOURNAL OF INFRARED AND MILLIMETER WAVES | 2003年 / 24卷 / 04期
关键词：
beam waveguide reflectors; directional couplers; alignment; direction-finding; gyrotron;
D O I：
10.1023/A:1022468412389
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
An in-situ alignment system for beam waveguides based on an interferometric direction-finding antenna was investigated numerically and experimentally. The system consists of a reflector with four off-central positioned waveguide couplers in two directions. By nulling the difference of the power signals as well as the mixing signal from each coupler pair, spatial and angular alignments of a beam impinging on the mirror can be performed. In this paper, the characteristics of such a mirror are presented, and the design of a prototype intended for use in an ECH transmission line at LHD is described. Low-power as well as high-power tests at a frequency of 82.7 GHz were carried out, and the results are discussed. The device shows a high performance in agreement with theory.
引用
收藏
页码：451 / 472
页数：22
相关论文
共 50 条
  • [21] Antenna geometry strategy with prior information for direction-finding MIMO radars
    Weidong Jiang
    Haowen Chen
    Xiang Li
    JournalofSystemsEngineeringandElectronics, 2015, 26 (03) : 468 - 475
  • [22] Antenna geometry strategy with prior information for direction-finding MIMO radars
    Jiang, Weidong
    Chen, Haowen
    Li, Xiang
    JOURNAL OF SYSTEMS ENGINEERING AND ELECTRONICS, 2015, 26 (03) : 468 - 475
  • [23] A COMPACT DIRECTION-FINDING ANTENNA FOR HF REMOTE-SENSING - COMMENT
    BARRICK, DE
    LIPA, BJ
    IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING, 1987, 25 (01): : 108 - 110
  • [24] Wideband Direction-Finding based on Time-Modulated Antenna Array
    Chen, Jingfeng
    Jin, Ronghong
    Fan, Haijun
    Geng, Junping
    Liang, Xianling
    He, Chong
    2015 IEEE 4TH ASIA-PACIFIC CONFERENCE ON ANTENNAS AND PROPAGATION (APCAP), 2015, : 48 - 49
  • [25] Influence of jitter in ADC on precision of direction-finding by digital antenna arrays
    Bondarenko M.
    Slyusar V.I.
    Radioelectronics and Communications Systems, 2011, 54 (8) : 436 - 445
  • [26] An implementation of a direction-finding antenna for mobile communications using a neural network
    Charpentier, É
    Laurin, JJ
    IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, 1999, 47 (07) : 1152 - 1159
  • [27] A Planar Direction-Finding Antenna with Reconfigurable Circuit for Scan Range Extension
    Tamura, Jo
    Arai, Hiroyuki
    2021 INTERNATIONAL SYMPOSIUM ON ANTENNAS AND PROPAGATION (ISAP), 2021,
  • [28] Calculation of nose dielectric radome effect on direction-finding characteristics of an antenna system
    Kukobko, SV
    Sazonov, AZ
    Sukharevsky, OI
    IVTH INTERNATIONAL CONFERENCE ON ANTENNA THEORY AND TECHNIQUES, VOLS 1 AND 2, PROCEEDINGS, 2003, : 657 - 660
  • [29] COMMENTS ON A COMPACT DIRECTION-FINDING ANTENNA FOR HF REMOTE-SENSING - REPLY
    MILLER, PA
    WEBER, BL
    IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING, 1987, 25 (01): : 110 - 113
  • [30] SOME PROBLEMS OF STATISTICAL SYNTHESIS OF 2-ANTENNA DIRECTION-FINDING SYSTEMS
    KHOMYAKO.EN
    TELECOMMUNICATIONS AND RADIO ENGINEER-USSR, 1969, (04): : 59 - &
12345