The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 17, 2000
Filed:
Mar. 17, 1999
Ricoh Company, Ltd., Tokyo, JP;
Abstract
A high-frequency switch includes a substrate, external conductors provided on the substrate, and a central conductor provided on the substrate, the external conductors and the central conductor constituting a coplanar high-frequency wave line on the substrate. A deflectable air-bridge is held on the external conductors via an air gap and extends out over the central conductor, the air-bridge being deflectable by an electrostatic field created by an actuation voltage applied between the wave line and the air-bridge. A control-signal conductor generates the actuation voltage between the wave line and the air-bridge. The central conductor acts as the control-signal conductor which generates the actuation voltage between the wave line and the air-bridge. The air-bridge contains a plurality of laminated thin films, the laminated thin films having variable internal stresses that are adjustable to match a particular actuation voltage selected for the switch.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile