Patent US6580337B1 successfully refreshed from Google Patents.
US6580337B1
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US
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MEMS switch
Assignee: California Institute of Technology
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Filing: 2000-07-19
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Granted: 2003-06-17
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Expires: 2020-07-19
Abstract
Abstract A microstrip single pole double throw switch incorporating multiple MEMS contacts. A first pair of contacts is located adjacent to the junction of input and output lines for optimization of performance bandwidth. The MEMS contacts that are not located adjacent to the junction are spaced along the output lines to further optimize the bandwidth and isolation in the off state, while minimizing insertion loss in the on state.
Inventors
- 👤 Sam Valas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 16:12
CPC Classifications
H; H01; H01P; H01P1/00; H01P1/10; H01P1/12; H01P1/127; H01H; H01H59/00; H01H59/0009; H01H9/00; H01H9/30; H01H9/40
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
88 words
A SPDT MEMS switch, comprising: a connection; first and second MEMS contact elements, respectively provided on respective sides of said connection and directly adjacent said connection; said first contact being actuated to provide an output from the connection in a first direction and said second MEMS contact being actuated at a different time than actuation of the first contact to provide an approximately equal output from the connection in a second direction; and at least two additional switches located in specified locations to enhance isolation at RF frequencies.
Claim 2
Dependent Claim
88 words
A SPDT MEMS switch, comprising: a connection; first and second MEMS contact elements, respectively provided on respective sides of said connection and directly adjacent said connection; said first contact being actuated to provide an output from the connection in a first direction and said second MEMS contact being actuated at a different time than actuation of the first contact to provide an approximately equal output from the connection in a second direction; and at least two additional switches located in specified locations to enhance isolation at RF frequencies.
Claim 3
Dependent Claim
24 words
A switch as in claim 1 wherein said at least two additional MEMS switches are located at a quarter wavelength of the specified frequency.
Claim 4
Dependent Claim
20 words
A switch as in claim 2 further comprising two additional MEMS contacts located at quarter wavelength of a specified frequency.
Claim 5
Dependent Claim
31 words
A SPDT MEMS switch as in claim 3 configured to suppress the second harmonic of the specified frequency by locating all additional switches at a quarter wavelength of a second harmonic.
Claim 6
Dependent Claim
15 words
A SPDT MEMS switch as in claim 2 wherein said specified frequency is 30 GHz.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2006-06-16 | 2006-12-16 | 2007-06-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2010-06-16 | 2010-12-16 | 2011-06-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2014-06-16 | 2014-12-16 | 2015-06-17 | $7700.00 | Window Closed / Lapsed |