发明名称 |
Apparatus and method for direct quadrature power amplifier modulation |
摘要 |
A direct power amplifier modulator that accepts bipolar I and Q data, either baseband or multi-carrier digital IF, and generates the resultant magnitude and sign components. Also described is a direct power amplifier modulator that generates quadrature terms of the carrier frequency offset by 90°, wherein each term is shifted by 180° under control of the respective sign components of the quadrature I and Q samples. The present invention also provides a transistor structure configured to accept differential quadrature frequency components that are combined in a post PA outphasing combiner.
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申请公布号 |
US2006078067(A1) |
申请公布日期 |
2006.04.13 |
申请号 |
US20050168227 |
申请日期 |
2005.06.28 |
申请人 |
SAMSUNG ELECTRONICS CO., LTD. |
发明人 |
BROBSTON MICHAEL L. |
分类号 |
H03F99/00;H04L27/20;H04L25/49 |
主分类号 |
H03F99/00 |
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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