TUNABLE FILTER APPARATUS

摘要

According to one embodiment, a tunable filter apparatus (1) includes a substrate fixing portion (2), a filter substrate (3), a member (4), a first supporting portion (10), a driving element (11), and a second supporting portion (15, 16). The filter substrate (3) is provided in part on the substrate fixing portion (2), and includes a circuit with a resonant element formed by a conductive film. The member (4) includes an opposite surface opposing the circuit. The first supporting portion (10) movably supports the member (4) between a first state and a second state. The driving element (11) applies a driving force to the first supporting portion (10). The second supporting portion (15, 16) connects the first supporting portion (10) and the driving element (11).