An ultra-compact planar bandpass filter with open-ground spiral for wireless application
A common via filter is investigated and designed by using a proposed scalable lumped circuit model. The model-based result of the filter agrees well with that of the measurement. An ultra-compact open-ground spiral filter is proposed based on the common via filter. The open-ground spiral resonators...
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| Main Authors: | , , , |
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| Other Authors: | |
| Format: | Article |
| Language: | English |
| Published: |
2010
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| Online Access: | https://hdl.handle.net/10356/93081 http://hdl.handle.net/10220/6251 |
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| Institution: | Nanyang Technological University |
| Language: | English |
| Summary: | A common via filter is investigated and designed by using a proposed scalable lumped circuit model. The model-based result of the filter agrees well with that of the measurement. An ultra-compact open-ground spiral filter is proposed based on the common via filter. The open-ground spiral resonators are used to design second-order and fourth-order bandpass filters. The filter layouts, which affect filter performance in both passband and stopband, are investigated. The advantages of the open-ground spiral filter include not only its ultra-compact size but also its additional transmission zero points and controllable stopband. |
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