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Tunable microstrip filters using selectively etched ferroelectric thin-film varactors for coupling
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Subramanyam, Guru Mueller, Carl H. Miranda, Felix A. Romanofsky, Robert R. VanKeuls, Frederick W. |
| Copyright Year | 2006 |
| Description | We report on the use of patterned ferroelectric films to fabricate proof of concept tunable one-pole microstrip filters with excellent transmission and mismatch/reflection properties at frequencies up to 24 GHz. By controlling the electric field distribution within the coupling region between the resonator and input/output lines, sufficiently high loaded and unloaded Q values are maintained so as to be useful for microstrip filter design, with low mismatch loss. In the 23 - 24 GHz region, the filter was tunable over a 100 MHz range, the loaded and unloaded Q values were 29 and 68, respectively, and the reflection losses were below -16 dB, which demonstrates the suitability of these films for practical microwave applications. |
| File Size | 4080294 |
| Page Count | 26 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_20070006543 |
| Archival Resource Key | ark:/13960/t15n1632b |
| Language | English |
| Publisher Date | 2006-01-01 |
| Access Restriction | Open |
| Subject Keyword | Electronics And Electrical Engineering Thin Films Fabrication Q Factors Ferroelectricity Varactor Diodes Tunable Filters Etching Electric Fields Resonators Microwaves Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
