发明名称 |
Control of power amplifiers in devices using transmit beamforming |
摘要 |
A transmitter comprises a plurality of transmit antennas for simultaneously transmitting weighted signals according to a channel transfer function. Each antenna has a corresponding amplifier that is bias controlled according to the transmit weights derived for the antenna transmission. A baseband processor produces digital weighted signals for upconversion and amplification by the amplifiers. Each amplifier is accompanied by a bias circuit responsive to the transmit weights. Alternatively, or additionally, corresponding DC/DC converters are used to control the operating voltage of the amplifiers. |
申请公布号 |
US2006116087(A1) |
申请公布日期 |
2006.06.01 |
申请号 |
US20060326630 |
申请日期 |
2006.01.06 |
申请人 |
IPR LICENSING, INC. |
发明人 |
SUGAR GARY L.;VAIDYANATHAN CHANDRA;LUO SIFEN |
分类号 |
H04B1/04;H01Q3/28;H03G3/30;H04B1/02;H04B7/005;H04B7/06;H04B7/08;H04L27/26 |
主分类号 |
H04B1/04 |
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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