Development of optical-infrared and radio instruments

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Instruments for radio wave observation

Various kinds of radio wave receiving systems have been developed for covering the wide frequency range of several ten KHz to several hundred MHz. The targets of the instruments are natural radio waves originated from Jupiter’s magnetosphere and solar corona which include information on wave generation processes and plasma environment along propagation paths, and also artificial radio waves which gives information on variations of the terrestrial ionosphere and magnetosphere deduced by the variation of their propagation paths. We have developed ground-based systems such as antenna systems, highly sensitive receivers and high resolution spectro-polarimeters, and also radio wave receivers installed on scientific satellites and planetary explorers which have been performed as domestic/international collaborative projects.

Fig. [left panel] Iitate Planetary Radio Telescope (IPRT) / [right panel] Front-end of the highly sensitive radio wave receiving system installed on IPRT.

This post is also available in: Japanese