A compact coupling controllable elliptical filter based on multilayer LTCC
This paper presents a compact elliptical filter based on modified λ/4 resonators with separated electric and magnetic coupling paths. For the proposed second-order filters, transmission zero points are generated at either lower or upper stopband by controlling the relative coupling strength in the t...
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| Main Authors: | , , , , , , |
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| 其他作者: | |
| 格式: | Article |
| 語言: | English |
| 出版: |
2013
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| 主題: | |
| 在線閱讀: | https://hdl.handle.net/10356/106692 http://hdl.handle.net/10220/16636 http://dx.doi.org/10.1002/mop.27679 |
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| 機構: | Nanyang Technological University |
| 語言: | English |
| 總結: | This paper presents a compact elliptical filter based on modified λ/4 resonators with separated electric and magnetic coupling paths. For the proposed second-order filters, transmission zero points are generated at either lower or upper stopband by controlling the relative coupling strength in the two paths of inter-stage resonators. Based on the topology and multilayer LTCC technology, a fourth-order bandpass filters operating at 5.2 GHz with a fractional bandwidth of 10% in 1.7 mm × 3 mm (0.0785λg × 0.1385λg) is designed and verified experimentally. |
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