发明名称 |
CARRIER AGGREGATION AMPLIFIER WITH DUAL GAIN CONTROL |
摘要 |
An apparatus includes a first amplification stage configured to amplify a first carrier signal and a second amplification stage configured to amplify a second carrier signal. The first amplification stage is direct-current (DC) coupled to the second amplification stage. First circuitry is coupled to the first amplification stage and configured to control a first gain of the first amplification stage. The first circuitry includes a first gain control transistor configured to selectively divert a first bleed current from a first output of the first amplification stage. Second circuitry is coupled to the second amplification stage and configured to control a second gain of the second amplification stage independently of the first gain. The second circuitry includes a second gain control transistor configured to selectively divert a second bleed current from a second output of the second amplification stage. |
申请公布号 |
CA2947886(A1) |
申请公布日期 |
2015.11.26 |
申请号 |
CA20152947886 |
申请日期 |
2015.05.12 |
申请人 |
QUALCOMM INCORPORATED |
发明人 |
YOUSSEF, AHMED ABDEL MONEM;ABDEL GHANY, EHAB AHMED SOBHY;CHANG, LI-CHUNG |
分类号 |
H03G3/00;H03F3/189;H03G1/00;H04B1/00;H04B7/185 |
主分类号 |
H03G3/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|