摘要
A four-pole quasi-elliptic function bandpass filter for a compact low-temperature cofired ceramic is proposed in this paper. The filter is constructed by the open-loop resonators and the miniaturized hairpin resonators that can be coupled through the apertures on the common ground plane, and the 0° feed structure adds two extra transmission zeros to the filter response. It is shown that the filter occupies a very small size. As a result, the proposed structure of the filter occupies a very small circuit area and has a good out-of band rejection.
原文 | English |
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頁(從 - 到) | 2688-2692 |
頁數 | 5 |
期刊 | IEEE Transactions on Microwave Theory and Techniques |
卷 | 53 |
發行號 | 9 |
DOIs | |
出版狀態 | Published - 9月 2005 |