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:
Jun. 01, 2004
Filed:
Aug. 20, 2002
Tsunehisa Marumoto, Tokyo, JP;
NEC Corporation, Tokyo, JP;
Abstract
A phase shifter for switching passing phase of a high-frequency signal by means of ON/OFF control of a micro-machine switch, the micro-machine switch comprising cantilevers ( ), ( ) with one ends thereof connected to a second distributed constant line ( ), ( ) and the other ends thereof formed to be capable of coming toward and away from the other of a first distributed constant line ( ), ( ). The micro-machine switch further comprises a first insulating section formed in a region where the first distributed constant line ( ), ( ) faces the cantilevers ( ), ( ), and a second insulating section ( ), ( ) for keeping a voltage value of a first control signal together with the first insulating section.