Development of 100 W-class superconducting transmit filter

2014 Fiscal Year Final Research Report

• Project/Area Number: 24560393
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Electron device/Electronic equipment
• Research Institution: Yamagata University
• Principal Investigator: SAITO Atsushi 山形大学, 理工学研究科, 准教授 (70313567)
• Project Period (FY): 2012-04-01 – 2015-03-31
• Keywords: 高温超伝導 / バルク / マイクロ波 / フィルタ / 耐電力特性

Outline of Final Research Achievements

100-W class superconducting transmit bandpass filters (BPFs) using high-temperature superconducting (HTS) bulks (Gd-Ba-Cu-O) for a next generation mobile communication system were studied. We found that a disk-type resonator has been useful for a higher power-handling capability (PHC). The 3- and 5-pole BPF were designed and fabricated. The highest PHC value of 126 W in the world was measured. From this research, our BPF with low-loss, high-PHC, and sharp skirt property will be useful for the 5th generation mobile communication system. And new physics which was different from the conventional phenomena of the thin-film BPF was found.

Free Research Field

超伝導エレクトロニクス