Miniaturisation of combline filters for switched-mode power amplifier systems
This paper presents a coaxial combline filter for a class-S power amplifier for an operating frequency of 450 MHz. According to the measurement results, the filter provides a bandwidth of 26 MHz, an insertion loss of 0.55 dB, and a second pass-band only at 2.8 GHz. As the filter dimensions are cruci...
| Main Authors: | , , |
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| Format: | Article |
| Language: | deu |
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Copernicus Publications
2008-05-01
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| Series: | Advances in Radio Science |
| Online Access: | http://www.adv-radio-sci.net/6/125/2008/ars-6-125-2008.pdf |
| Summary: | This paper presents a coaxial combline filter for a class-S power amplifier for an operating frequency of 450 MHz. According to the measurement results, the filter provides a bandwidth of 26 MHz, an insertion loss of 0.55 dB, and a second pass-band only at 2.8 GHz. As the filter dimensions are crucial for the envisaged application, different ways to miniaturise the filter are proposed and their features and disadvantages discussed. |
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| ISSN: | 1684-9965 1684-9973 |