| 发明名称 | Apparatus and method for signal predistortion | ||
| 摘要 | Apparatus and a method for predistortion of a radio-frequency signal are described. At least one predistortion unit is described that is arranged to receive an analog baseband signal before amplification and to generate an analog predistortion signal based on said analog baseband signal. At least one mixer unit is also described and may be electrically coupled to the at least one predistortion unit. In this case, the at least one mixer unit is arranged to receive the analog baseband signal before amplification and the analog predistortion signal and to generate a weighted combination of said signals. | ||
| 申请公布号 | US9515685(B2) | 申请公布日期 | 2016.12.06 |
| 申请号 | US201414249796 | 申请日期 | 2014.04.10 |
| 申请人 | BROADCOM CORPORATION | 发明人 | Aalto Juhani Kalervo;Heikkinen Jari Johannes |
| 分类号 | H04B1/04;H03F1/22;H03F1/32;H03F3/24;H03F3/45 | 主分类号 | H04B1/04 |
| 代理机构 | Oblon, McClelland, Maier & Neustadt, L.L.P. | 代理人 | Oblon, McClelland, Maier & Neustadt, L.L.P. |
| 主权项 | 1. An apparatus for predistortion of a radio-frequency signal comprising: at least one predistortion circuit electrically coupled to ground and configured to receive an analog baseband signal before amplification and to generate an analog predistortion signal based on said analog baseband signal; and at least one mixer circuit electrically coupled to the at least one predistortion circuit, wherein the at least one mixer circuit is configured to receive the analog baseband signal before amplification and the analog predistortion signal and to generate a weighted combination thereof, wherein the said at least one predistortion circuit is electrically coupled to ground via one or more local oscillator transistor switches. | ||
| 地址 | Irvine CA US | ||