MEMS-based radio frequency circulator
US8155602B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 16, 2009 |
| Grant date | Apr 10, 2012 |
| Priority date | — |
| Expiry date | Nov 29, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01P1/127
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
The invention relates to an RF circulator device with n ports allowing an RF signal to circulate in a single direction, where the circulator has at least three ports, an input port for receiving a radio frequency signal to be transmitted to a second port designed to be connected to an antenna port, an output port capable of being connected to a receiving device or a load, comprising a first and a second microswitches each comprising two armatures of which the first is a flexible membrane and the second comprises at least one zone of a signal line, both armatures being separated by a thickness of void or of gas, the device making it possible to connect the main line to ground planes by self-actuation of the membrane under the effect of an input signal power.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.