An ultra-compact hairpin band pass filter with additional zero points
A novel quasi-hairpin filter is presented in this letter. The generation of zero points is investigated. Second-order and fourth-order filters, based on separate coupling paths, have been implemented. The filters show ultra-compact size, steep selectivity and deep stopband with additional transmissi...
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| Main Authors: | , , , |
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| Other Authors: | |
| Format: | Article |
| Language: | English |
| Published: |
2009
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/91738 http://hdl.handle.net/10220/4677 |
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| Institution: | Nanyang Technological University |
| Language: | English |
| Summary: | A novel quasi-hairpin filter is presented in this letter. The generation of zero points is investigated. Second-order and fourth-order filters, based on separate coupling paths, have been implemented. The filters show ultra-compact size, steep selectivity and deep stopband with additional transmission zero points. The measured fourth-order filter operating at 1.69 GHz, with a fractional bandwidth of 10% has only an active area of 5.5 mm × 6.2 mm (0.031lambda0times0.035lambda0) |
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