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http://ir.ncue.edu.tw/ir/handle/987654321/10266
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| Title: | The UMTS Diplexer Design Using the Anti-Parallel Coupled Lines Loaded with a Stepped Impedance Resonator |
| Authors: | Ho, Min-Hua;Lin, Wei-Chen |
| Contributors: | 電子工程學系 |
| Keywords: | UMTS diplexer;Antiparallel-coupled lines;Mid-passband zero implantation;spurline |
| Date: | 2011-09
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| Issue Date: | 2012-05-22T06:25:50Z
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| Publisher: | Wiley |
| Abstract: | We present a novel UMTS diplexer design using the filters of antiparallel-coupled lines structure loaded with a stepped impedance microstrip resonator. The diplexer is composed of two filters. And a microstrip line of quarter-wavelength is used to links each filter to the common port. The composing filters exhibit two tunable transmission zeros which are used to implement the mid-passband zero implantation for improving the isolation between the transmitting (Tx) and the receiving (Rx) ports. A pair of spurlines is used in the coupled lines of the Tx-filter to further increase the isolation. An experiment is conducted to assure the diplexer's performance and to verify the circuit design. |
| Relation: | Microwave and Optical Technology Lett., 53(12): 2988-2990 |
| Appears in Collections: | [電子工程學系] 期刊論文
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