大口径射电望远镜相位阵馈源关键技术研究

Research on Key Technologies of the Phase Array Feed for Large Aperture Radio Telescope

中文关键词:  射电望远镜,相位阵馈源,高温超导滤波器,Vivaldi 天线阵列,GaAs MMIC

英文关键词:radio telescope, phased array feed, high-temperature superconducting filters, Vivaldi antenna array, GaAs MMIC

中文摘要:

      馈源作为射电天文望远镜的关键部件,其性能至关重要。面向新疆奇台QTT 110 m射电望远镜和上海天马65 m 射电望远镜相位阵馈源设计需求,本研究团队开展了抗射频干扰的高温超导滤波器、宽带Vivaldi天线阵列和低噪声GaAs MMIC芯片电路的研究工作。这些新型馈源技术、方案可为我国大口径射电望远镜的设计提供有效的理论与实验基础。

英文摘要:

      As a key component of radio telescopes, the performance of the feed is crucial. In order to meet the design requirements of phase array feeder of Xinjiang Qitai QTT 110 m radio telescope and Shanghai Tianma 65 m radio telescope, our research team carried out research work on anti RF interference high-temperature superconductivity filters, broadband Vivaldi antenna arrays and low-noise GaAs MMIC chip circuits. These new technologies and schemes can provide an effective theoretical and experimental basis for the design of large aperture radio telescope in China.