In this thesis, we propose a miniaturized LTCC balanced filter that integrates bandpass filter (BPF) and balun. In order to reject interferences, we have the transmission zero of out-band by extra capacities and inductances in the prototype of Second-Order BPF. On the other hand, we miniaturize the balun by revising the length of couple-line with four shunt capacities. The practice size of the miniaturized balanced filter is 2.0mm x 1.25mm x 0.95mm.The insertion and return losses are less than -2.5dB and -20dB over operating frequency band, respectively. The phase difference is less than 5 ¢X, and the amplitude difference is within -0.5dB in operating frequency band. The size is the smallest in the similar commercial product and relative journal.
| Identifer | oai:union.ndltd.org:NSYSU/oai:NSYSU:etd-0122108-115729 |
| Date | 22 January 2008 |
| Creators | Li, Jyun-lin |
| Contributors | Whei-Min Lin, Yu-Feng Huang, Herng-Yih Ueng |
| Publisher | NSYSU |
| Source Sets | NSYSU Electronic Thesis and Dissertation Archive |
| Language | Cholon |
| Detected Language | English |
| Type | text |
| Format | application/pdf |
| Source | http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0122108-115729 |
| Rights | not_available, Copyright information available at source archive |
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