Design and Analysis of Low Temperature Co-Fired Ceramic Filters with Out-of-Band Transmission Zeros
碩士 === 國立中正大學 === 電機工程研究所 === 93 === In this thesis, design and analysis of five types of LTCC band-pass and low-pass filter are presented. In the proposed band-pass filters, I use the additional cross coupling such as feedback capacitor between source and load, and grounding inductor among resonato...
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| Format: | Others |
| Language: | zh-TW |
| Published: |
2005
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| Online Access: | http://ndltd.ncl.edu.tw/handle/05038811057695586211 |
| Summary: | 碩士 === 國立中正大學 === 電機工程研究所 === 93 === In this thesis, design and analysis of five types of LTCC band-pass and low-pass filter are presented. In the proposed band-pass filters, I use the additional cross coupling such as feedback capacitor between source and load, and grounding inductor among resonators to produce out-of-band transmission zeros and improve the performances of filters. The impedance- and admittance-inverters, and the Y-matrix method are used to derive the initial values of the filters. For low-pass filter, the image parameter method is adopted to calculate the filter’s initial values and the out-of-band transmission zeros. This low-pass filter has broad stop-band. All of the filters mentioned above are simulated by the full-wave EM simulation and fabricated through the LTCC foundry. The measured results match well with simulation has proved the validity and feasibility of the proposed filters.
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