High-frequency electromagnetic simulation of an extremely low-height circulator using a microstrip Y-junction

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概要

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• The transmission characteristics of a low-height circulator that we designed were simulated, using high-frequency' electromagnetic analysis based on the finite element method. To reduce the height of the circulator, we dramatically reduced the thickness of the iron yoke and the ferrite magnet while maintaining the required magnetic bias field strength. The circulator has a hexagonal platelet shape with a diagonal line length of 7.5 mm and a height of 0.85 mm. It is composed of a 0.2-mm-thick ferrite magnet, a 0.3-mm-thick YIG ferrite platelet, a 0.17-mm-thick iron yoke, and a microstrip Y-junction. The simulation results exhibited acceptable nonreciprocal transmission characteristics with an insertion loss of 0.67 dB, and a return loss and an isolation both greater than 20 dB.

• 社団法人日本磁気学会の論文
• 2004-05-01

著者

• Oshiro K.

  Faculty of Engineering, Yamaguchi University

• Yamamoto S.

  Faculty of Engineering, Yamaguchi University

• Tanaka T.

  Faculty of Engineering, Yamaguchi University

• Kurisu H.

  Faculty of Engineering, Yamaguchi University

• Matsuura M.

  Faculty of Engineering, Yamaguchi University

• Mikami H.

  Advanced Electronics Research Laboratory, Hitachi Metals, Ltd.

• Fujii S.

  Advanced Electronics Research Laboratory, Hitachi Metals, Ltd.

• Murakami S.

  Advanced Electronics Research Laboratory, Hitachi Metals, Ltd.

• Kurisu H

  Graduate School Of Science And Engineering Yamaguchi University

• Matsuura M

  Taiyo Yuden Co. Ltd.

• Tanaka T.

  Faculty of Engineering, Osaka University

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