Design of the Compact Slotted-Ground-plane Resonator
| Autor: | Wan-ti Wang, 王萬迪 |
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| Rok vydání: | 2013 |
| Druh dokumentu: | 學位論文 ; thesis |
| Popis: | 101 In this thesis, a new design for the compact low-pass filter (LPF) with a wide rejection band is presented by utilizing the slotted-ground-plane (SGP) structure. A modified-π slot is etched in the ground plane to excite three different resonant modes. A wide rectangular stub, which overlaps the connection slots, connects to the microstrip transmission line. This technique significantly enhances the rejection characteristics. A reversed-C slot is embedded inside the modified-π slot in order to lower the initial resonant frequency of the LPF. In particular, two shorted quarter-wavelength branch slots are used to generate two transmission zeros such that the high-frequency rejection performance can improve. An equivalent RLC circuit is proposed to model the introduced LPF and corresponding RLC parameters are extracted. A fabricated filter rejects the signals at the frequencies from 1.97 to 12.0 GHz with more that -20-dB suppression. |
| Databáze: | Networked Digital Library of Theses & Dissertations |
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