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Fixed-frequency and frequency-agile (au, hts) microstrip bandstop filters for l-band applications
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Subramanyam, Guru Miranda, Felix A. VanKeuls, Fred W. Saenz, Eileen M. Chen, Chonglin |
| Copyright Year | 2001 |
| Description | In this work, we report on the performance of a highly selective, compact 1.83 x 2.08 cm(exp 2) (approx. 0.72 x 0.82 in(exp 2) microstrip line bandstop filter of YBa2CU3O(7-delta) (YBCO) on LaAlO3 (LAO) substrate. The filter is designed for a center frequency of 1.623 GHz for a bandwidth at 3 dB from reference baseline of less than 5.15 MHz, and a bandstop rejection of 30 dB or better. The design and optimization of the filter was performed using Zeland's IE3D circuit simulator. The optimized design was used to fabricate gold (Au) and High-Temperature Superconductor (HTS) versions of the filter. We have also studied an electronically tunable version of the same filter. Tunability of the bandstop characteristics is achieved by the integration of a thin film conductor (Au or HTS) and the nonlinear dielectric ferroelectric SrTiO3 in a conductor/ferroelectric/dielectric modified microstrip configuration. The performance of these filters and comparison with the simulated data will be presented. |
| File Size | 5899078 |
| Page Count | 9 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_20010047397 |
| Archival Resource Key | ark:/13960/t0102420d |
| Language | English |
| Publisher Date | 2001-04-01 |
| Access Restriction | Open |
| Subject Keyword | Electronics And Electrical Engineering Thin Films Ybco Superconductors Gold Ultrahigh Frequencies Ferroelectricity Tunable Filters Bandstop Filters Bandwidth Microstrip Transmission Lines Design Analysis Substrates Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
