为了满足功率放大器对高效率和宽带的要求,介绍了一种连续逆F类功率放大器设计方法。在分析连续逆F类模式的基波和谐波阻抗基础上,提出了一种阶跃阻抗匹配网络电路。为了验证方法的有效性,设计并实现了一个1.7~2.9 GHz宽带的连续逆F类...为了满足功率放大器对高效率和宽带的要求,介绍了一种连续逆F类功率放大器设计方法。在分析连续逆F类模式的基波和谐波阻抗基础上,提出了一种阶跃阻抗匹配网络电路。为了验证方法的有效性,设计并实现了一个1.7~2.9 GHz宽带的连续逆F类功率放大器。测试结果表明,在工作带宽内,增益波动小于2 d B,饱和功率大于40.5 d Bm,峰值效率为65%~76%。该方法为宽带高效率放大器设计提供了有益的参考。展开更多
The conceptions of the knowledge screen generated by S-rough sets are given:f-screen and f^(-)-screen,and then puts forward f^(-)-filter theorem,f^(-)-filter theorem of knowledge.At last,the applications of knowledge ...The conceptions of the knowledge screen generated by S-rough sets are given:f-screen and f^(-)-screen,and then puts forward f^(-)-filter theorem,f^(-)-filter theorem of knowledge.At last,the applications of knowledge separation are given according to f^(-)-screen and f^(-)-screen.展开更多
文摘为了满足功率放大器对高效率和宽带的要求,介绍了一种连续逆F类功率放大器设计方法。在分析连续逆F类模式的基波和谐波阻抗基础上,提出了一种阶跃阻抗匹配网络电路。为了验证方法的有效性,设计并实现了一个1.7~2.9 GHz宽带的连续逆F类功率放大器。测试结果表明,在工作带宽内,增益波动小于2 d B,饱和功率大于40.5 d Bm,峰值效率为65%~76%。该方法为宽带高效率放大器设计提供了有益的参考。
基金supported by the National Natural Science Foundation of China(70271048).
文摘The conceptions of the knowledge screen generated by S-rough sets are given:f-screen and f^(-)-screen,and then puts forward f^(-)-filter theorem,f^(-)-filter theorem of knowledge.At last,the applications of knowledge separation are given according to f^(-)-screen and f^(-)-screen.
