[15a-D221-1~7] 9.5 New functional materials and new phenomena

[15a-D221-3] Variation of eigenfrequencies in the Su–Schrieffer–Heeger electrical circuit

〇Fumiya Nagasawa¹, Haruka Fukumoto¹, Kazuisao Tsuruda¹, Yoshinori Miyamae¹, Yoshiaki Oku¹, Ken Nakahara¹ (1.ROHM Co., Ltd.)

Keywords:Bandpass filter, Topological insulator

The Su–Schrieffer–Heeger (SSH) model composed of an electrical circuit is known to behave as an electrical bandpass filter. In this report, the variation of eigenfrequencies [V(f_e)], which is a key feature toward the mass production of bandpass filters, was numerically calculated by varying component values of SSH circuits. We found that the relation between V(f_e) and the size of SSH circuits depends on the spatial distribution of the eigenstate. We will present a comparison between the numerically and analytically obtained V(f_e).