-
公开(公告)号：US20160006401A1
公开(公告)日：2016-01-07
申请号：US14795456
申请日：2015-07-09
申请人： Intel Corporation
CPC分类号： H03F1/0288 , H03F1/42 , H03F3/19 , H03F3/211 , H03F2200/192 , H03F2200/408 , H03F2200/451 , H03F2203/21106
摘要： A multi-stage Doherty power amplifier (“PA”) circuit which achieves superior efficiency over broadband range of frequencies is disclosed. Conventional multi-stage amplifiers may offer potential for efficiency enhancement but may suffer from cost penalties and severe bandwidth limitation in practice. Embodiments may employ a driver in the peaking arm which is biased in class C which may alleviate such limitations. The amplifier topology and associated circuitry described in embodiments may achieve high efficiency, smooth PA gain, and enhanced phase characteristics over a 15% fractional bandwidth with reduced costs.
摘要翻译： 公开了一种在宽频带范围内实现优越效率的多级Doherty功率放大器（“PA”）电路。 传统的多级放大器可能提供提高效率的潜力，但是在实践中可能会遭受成本惩罚和严重的带宽限制。 实施例可以采用在C级偏置的峰值臂中的驱动器，其可以减轻这种限制。 实施例中描述的放大器拓扑和相关电路可以以15％的小数带宽实现高效率，平滑的PA增益和增强的相位特性，同时降低成本。
-
公开(公告)号：US09614480B2
公开(公告)日：2017-04-04
申请号：US14795456
申请日：2015-07-09
申请人： Intel Corporation
CPC分类号： H03F1/0288 , H03F1/42 , H03F3/19 , H03F3/211 , H03F2200/192 , H03F2200/408 , H03F2200/451 , H03F2203/21106
摘要： A multi-stage Doherty power amplifier (“PA”) circuit which achieves superior efficiency over broadband range of frequencies is disclosed. Conventional multi-stage amplifiers may offer potential for efficiency enhancement but may suffer from cost penalties and severe bandwidth limitation in practice. Embodiments may employ a driver in the peaking arm which is biased in class C which may alleviate such limitations. The amplifier topology and associated circuitry described in embodiments may achieve high efficiency, smooth PA gain, and enhanced phase characteristics over a 15% fractional bandwidth with reduced costs.
-
搜索结果
2 条记录 (耗时 0.01 秒)
