Design of the Tri-passband Bandpass Filter With Hexagonal Grounded Resonators and Filtering Power Divider With High Isolation
| Autor: | LEE CHENG-YU, 李政諭 |
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| Rok vydání: | 2016 |
| Druh dokumentu: | 學位論文 ; thesis |
| Popis: | 104 The thesis includes two parts. The first part will introduce a novel compact tri-passband bandpass filter is proposed and developed. The proposed filter consists of two hexagonal grounded resonators, one rectangular slot, and two hexagonal patches. The resonators, slot and patches can control three passbands with 3, 5.5, and 9.4 GHz for central frequency, respectively. The equivalent circuit and design procedures of the tri-passband bandpass filter are provided as well. The second part will introduce a compact microstrip power divider with wide stopband and high isolation, which use step impedance coupled line to create a transmission zero；use short coupled line to create a extra transmission zero；add a L-type open stub at output port to improve the return loss of passband and also create a extra transmission zero；final add a L-type short stub at input port to impro the in-band’s return loss. And series resistance and capacitance for better isolation performance in passband. |
| Databáze: | Networked Digital Library of Theses & Dissertations |
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