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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Harscher, P. Vahldieck, R. Amari, S. |
| Copyright Year | 2001 |
| Description | Author affiliation: Swiss Fed. Inst. of Technol., Zurich, Switzerland (Harscher, P.) |
| Abstract | A novel method for computerized diagnosis and automatic tuning of microwave (cavity) filters is introduced. The method is based on equivalent network theory using modified filter synthesis equations, including all characteristic filter parameters like resonant frequency, losses of individual resonators, input-/output couplings and couplings between resonators. Instead of using field simulators to extract filter parameters and associated network sensitivities, a more practical and more accurate parameter extraction process of measured S-parameter data is utilized. Thus automatic tuning becomes a two step process. In the first step the exact parameter values of an untuned filter as well as parameter sensitivities are extracted from a series of S-parameter measurements. In a second step gradient optimization is used on the so corrected model to find the tuning screw positions to give the same parameter set as obtained from the synthesis. |
| Starting Page | 1543 |
| Ending Page | 1546 |
| File Size | 342854 |
| Page Count | 4 |
| File Format | |
| ISBN | 0780365380 |
| ISSN | 0149645X |
| DOI | 10.1109/MWSYM.2001.967197 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2001-05-20 |
| Publisher Place | USA |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Automatic testing System testing Microwave filters Resonator filters Tuning Filtering theory Data mining Scattering parameters Microwave theory and techniques Network synthesis |
| Content Type | Text |
| Resource Type | Article |
| Subject | Condensed Matter Physics Electrical and Electronic Engineering Radiation |
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