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Study on numerical prediction of fracture statistics of ceramics based on microstructural features
横浜国立大学博士(工学
Advanced electrolyte design for high-energy-density and high-power alkali-metal secondary batteries
横浜国立大学博士(工学
Millimeter-Wave Antenna-in-Package (AiP) Design of a Wideband Patch Antenna for 5G applications
This paper presents a new antenna-in-package (AiP) design that enlarges a patch antenna bandwidth for 5G mobile communications. Unlike conventional AiP methods, the proposed one has an advantage in enlarging an impedance bandwidth without modifying antenna geometry. The approach uses a dielectric cube with a relatively high permittivity, around 15 to 20. By mounting the cube on a patch antenna, The antenna bandwidth where the return loss is greater than 10 dB is broadened from 0.5 to 1.4 GHz without changing the resonant frequency of the antenna. The antenna is designed at 28 GHz, and the antenna characteristics are thoroughly compared based on three antenna types.2023 Asia-Pacific Microwave Conference (APMC)
Date of Conference: 05-08 December 2023
Conference Location: Taipei, Taiwa
Study on a machine design for torque ripple reduction by considering time-spatial harmonics in iron core
横浜国立大学博士(工学