{"title":"开发高效、大功率短波调幅发射机的考虑","authors":"M. Yamazoe, K. Haeiwa, S. Hirose, K. Wakai","doi":"10.1109/PCCON.2007.373094","DOIUrl":null,"url":null,"abstract":"This paper describes a study on high power short-wave AM transmitter with high efficiency. First, we fabricated a new power amplifier operating at short-wave band (3M-30MHz) using RF MOSFETs and a new output circuit for obtaining high efficiency. Next, we proposed a new power combiner with excellent linearity by tuning the transmitter output circuit including stray capacitance and inductance. In addition, we proposed an evolutional short-wave AM transmitter since conventional MF band digital AM modulation method can not be introduced because of losses caused by parasitic diode of RF MOSFETs.","PeriodicalId":325362,"journal":{"name":"2007 Power Conversion Conference - Nagoya","volume":"36 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2007-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Considerations for Developing a Highly Efficient, High-power Shortwave AM Transmitter\",\"authors\":\"M. Yamazoe, K. Haeiwa, S. Hirose, K. Wakai\",\"doi\":\"10.1109/PCCON.2007.373094\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"This paper describes a study on high power short-wave AM transmitter with high efficiency. First, we fabricated a new power amplifier operating at short-wave band (3M-30MHz) using RF MOSFETs and a new output circuit for obtaining high efficiency. Next, we proposed a new power combiner with excellent linearity by tuning the transmitter output circuit including stray capacitance and inductance. In addition, we proposed an evolutional short-wave AM transmitter since conventional MF band digital AM modulation method can not be introduced because of losses caused by parasitic diode of RF MOSFETs.\",\"PeriodicalId\":325362,\"journal\":{\"name\":\"2007 Power Conversion Conference - Nagoya\",\"volume\":\"36 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2007-04-02\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2007 Power Conversion Conference - Nagoya\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/PCCON.2007.373094\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2007 Power Conversion Conference - Nagoya","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/PCCON.2007.373094","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Considerations for Developing a Highly Efficient, High-power Shortwave AM Transmitter
This paper describes a study on high power short-wave AM transmitter with high efficiency. First, we fabricated a new power amplifier operating at short-wave band (3M-30MHz) using RF MOSFETs and a new output circuit for obtaining high efficiency. Next, we proposed a new power combiner with excellent linearity by tuning the transmitter output circuit including stray capacitance and inductance. In addition, we proposed an evolutional short-wave AM transmitter since conventional MF band digital AM modulation method can not be introduced because of losses caused by parasitic diode of RF MOSFETs.
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