Publications of Astronomical Society of Japan 75(3) 567-583 2023年3月 [査読有り]
We built a Ka-band dual-circular-polarization low-noise receiver for the Misasa 54 m parabola antenna in Misasa, Japan. The antenna is designed to be combined with a transmitter and receiver system at the X band (around 8 GHz) and simultaneously w...
A projectile accelerated by the Hayabusa2 Small Carry-on Impactor successfully produced an artificial impact crater with a final apparent diameter of 14.5 ± 0.8 m on the surface of the near-Earth asteroid 162173 Ryugu on April 5, 2019. At the time...
IEEE Antennas and Propagation Society, AP-S International Symposium (Digest) 154-157 2012年12月
A light weight and very high gain radial line slot antenna (RLSA) for space exploration is designed, fabricated and characterized at 32GHz. More than 25000 slots are spirally arranged on the metal top plate with the uniform distribution over the a...