Broadband and Ultra-Wideband (UWB) Bandpass Filters with Multimode Stepped-Impedance Resonators
| Autor: | Sen-Hao Cheng, 鄭森豪 |
|---|---|
| Rok vydání: | 2006 |
| Druh dokumentu: | 學位論文 ; thesis |
| Popis: | 94 Broadband bandpass filters and a ultra-wideband bandpass filter are synthesized based on the multimode property of stepped-impedance resonators (SIRs). Based on the resonance properties of SIRs, the fundamental and higher order resonant frequencies are analyzed against the length ratio of the high-Z and low-Z segments. With proper choice of above parameters, a Chebyshev response for dual- and triple-mode SIR can be obtained. Emphasis is placed not only on designing the input/output (I/O) coupling structures for matching the external Q (Qext) and the circuit bandwidth, but also on matching the resonant peaks of the circuit with the nominal Chebyshev poles. Measured results of experimental circuits show good agreement with simulated responses. |
| Databáze: | Networked Digital Library of Theses & Dissertations |
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