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Development of a power divider in the H plane using posts in a rectangular waveguide for the next generation lower hybrid current drive antenna

Masami Seki, Sunao Maebara, Hiromi Fukuda, Yoshitaka Ikeda, Hiroyuki Arai1997年Fusion Engineering and DesignIF 1.7出版社

AbstractA compact radio-frequency (RF) power divider has been developed for the next generation lower hybrid current drive (LHCD) antenna at a frequency of several gigahertz. The power divider is featured by power splitting in the H plane of a rectangular waveguide with posts. The posts in the waveguide are used to reduce reflective power into the input waveguide and to divide RF power into the following subwaveguides with the same ration. The H plane power-divider having three subwaveguides is fabricated for comparing with analytical results by a calculation code. The positions of three posts are optimized by the calculation code to obtain the required RF properties. Measured RF properties show good agreement with the calculated data at a frequency of 2 GHz. The results show that the code can design the power divider in the H plane with posts.

日本語訳

周波数が数ギガヘルツの次世代低混合同軸電流駆動(LHCD)アンテナ用に、コンパクトな高周波(RF)電力分配器が開発された。この電力分配器は、ポストを備えた矩形導波管のH面における電力分配を特徴とする。導波管内のポストは、入力導波管への反射電力を低減し、RF電力を同一の比率で後段のサブ導波管へ分配するために用いられる。3つのサブ導波管を有するH面電力分配器が、計算コードによる解析結果と比較するために製作された。3つのポストの位置は、要求されるRF特性を得るために計算コードによって最適化された。測定されたRF特性は、周波数2 GHzにおいて計算データと良好な一致を示した。この結果は、本コードがポストを有するH面電力分配器の設計に有効であることを示している。

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Current driveLower hybridLower hybrid current driveWaveguide
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