Switch
AssigneesFujitsu Media Devices Limited, Fujitsu Limited
InventorsNoboru Wakatsuki, Yu Yonezawa, Naoyuki Mishima, Tadashi Nakatani, Anh Tuan Nguyen
Life of this patent
Estimating the term…
Abstract
A switch includes a movable portion, a first electrode and a second electrode. The movable portion is provided on a substrate and moves with respect to the substrate. The first electrode is provided on the movable portion. The second electrode is able to contact with the first electrode and is fixed to the substrate. f×Ro×C≦1.6×10−4 when an operation frequency is represented as “f” (Hz), a transmission impedance is represented as “Ro” (Ω), and a capacitance in “OFF” state between the first electrode and the second electrode is represented as “C” (F).
Claims12
A switch comprising:
- a movable portion that is provided on a substrate and moves with respect to the substrate;
- a first electrode that is provided on the movable portion;
- and
- a second electrode that is able to contact with the first electrode and is fixed to the substrate,
- wherein f×Ro×C≦1.6×10−4 when an operation frequency is represented as “f” (Hz), a transmission impedance is represented as “Ro” (Ω), and a capacitance in “OFF” state between the first electrode and the second electrode is represented as “C” (F).
A switch comprising:
- a movable portion that is provided on a substrate;
- a first electrode that is provided on the movable portion;
- and
- a second electrode and a third electrode that are able to contact with the first electrode and are fixed to the substrate,
- a high frequency signal flowing from one of the second electrode and the third electrode to the other through the first electrode,
- wherein f×Ro×C≦3.2×10−4 when an operation frequency is represented as “f” (Hz), a transmission impedance is represented as “Ro” (Ω), and a capacitance in “OFF” state between the first electrode and the second electrode and between the first electrode and the third electrode is represented as “C” (F).
Dependencies are inferred from the claim text.