发明名称 |
CLASS-AB RADIO FREQUENCY AMPLIFIER FOR ENVELOPE DETECTOR |
摘要 |
An envelope detector (ED) includes a voltage-mode ED core including parallel detection transistors for detecting a voltage envelope of a radio frequency (RF) signal input, the RF signal input including an output of a radio such as a cellular transmitter (TX). The ED further includes multiple voltage amplifiers positioned serially in gain stages between the TX output and the ED core to provide a total linear voltage range of the envelope detector. A final voltage amplifier of the multiple voltage amplifiers drives the ED core and includes a class-AB RF amplifier configured to operate within a full linear voltage range of the ED core. |
申请公布号 |
EP2944968(A1) |
申请公布日期 |
2015.11.18 |
申请号 |
EP20150001353 |
申请日期 |
2013.06.17 |
申请人 |
BROADCOM CORPORATION |
发明人 |
JANICE, CHIU;HADJI-ABDOLHAMID, AMIR |
分类号 |
G01R19/04;H03D1/22;H03F3/189;H03F3/19;H03F3/26;H03F3/45;H04L27/06 |
主分类号 |
G01R19/04 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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