发明公开
EP3146638A1 CARRIER AGGREGATION AMPLIFIER WITH DUAL GAIN CONTROL
审中-公开
麻醉品麻醉大师VERSTÄRKUNGSREGELUNGTRÄGERAGGREGATIONSVERSTÄRKERMIT DOPPELTERVERSTÄRKUNGSREGELUNG
- 专利标题: CARRIER AGGREGATION AMPLIFIER WITH DUAL GAIN CONTROL
- 专利标题(中): 麻醉品麻醉大师VERSTÄRKUNGSREGELUNGTRÄGERAGGREGATIONSVERSTÄRKERMIT DOPPELTERVERSTÄRKUNGSREGELUNG
-
申请号: EP15726786.5申请日: 2015-05-12
-
公开(公告)号: EP3146638A1公开(公告)日: 2017-03-29
- 发明人: YOUSSEF, Ahmed Abdel Monem , ABDEL GHANY, Ehab Ahmed Sobhy , CHANG, Li-Chung
- 申请人: Qualcomm Incorporated
- 申请人地址: 5775 Morehouse Drive San Diego, CA 92121-1714 US
- 专利权人: Qualcomm Incorporated
- 当前专利权人: Qualcomm Incorporated
- 当前专利权人地址: 5775 Morehouse Drive San Diego, CA 92121-1714 US
- 代理机构: Carstens, Dirk Wilhelm
- 优先权: US201462002751P 20140523; US201514643854 20150310
- 国际公布: WO2015179172 20151126
- 主分类号: H04B1/00
- IPC分类号: H04B1/00 ; H03F1/22 ; H03G1/00
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.
公开/授权文献
- EP3146638B1 CARRIER AGGREGATION AMPLIFIER WITH DUAL GAIN CONTROL 公开/授权日:2019-06-19
信息查询