| 发明名称 | Programmable RF notch filter for envelope tracking | ||
| 摘要 | A parallel amplifier, a switching supply, and a radio frequency (RF) notch filter are disclosed. The parallel amplifier has a parallel amplifier output, such that the switching supply is coupled to the parallel amplifier output. Further, the RF notch filter is coupled between the parallel amplifier output and a ground. The RF notch filter has a selectable notch frequency, which is based on an RF duplex frequency. | ||
| 申请公布号 | US9020451(B2) | 申请公布日期 | 2015.04.28 |
| 申请号 | US201313951976 | 申请日期 | 2013.07.26 |
| 申请人 | RF Micro Devices, Inc. | 发明人 | Khlat Nadim |
| 分类号 | H01Q11/12;H04B1/04;H03H21/00;H03F1/02;H03F3/195;H03F3/24;H03H7/01 | 主分类号 | H01Q11/12 |
| 代理机构 | Withrow & Terranova, P.L.L.C. | 代理人 | Withrow & Terranova, P.L.L.C. |
| 主权项 | 1. Circuitry comprising: a parallel amplifier having a parallel amplifier output and configured to regulate a voltage of a first power supply output signal based on a voltage setpoint; a switching supply coupled to the parallel amplifier output; and a radio frequency (RF) notch filter having a selectable notch frequency and coupled between the parallel amplifier output and a ground, wherein the selectable notch frequency is based on an RF duplex frequency. | ||
| 地址 | Greensboro NC US | ||