发明名称 |
Phase shifted transmitter architecture for communication systems |
摘要 |
The phase shifted (PS) transmitter provides substantially linear amplification from two non-linear amplifiers by decomposing the original signal into two constant envelope signals with varying phases. The generation of the two constant envelope signals does not require the use of a signal component separator (SCS) or a reference signal generator. The phase shifted transmitter generates directly the required constant envelope, varying phase signals. This eliminates stringent requirements on the circuitry and allows the use of non-linear highly efficient power amplifiers in the transmitter. When the two above mentioned signals are combined, they constructively and destructively interfere to re-form an amplified form of the original signal, which is to be transmitted via an antenna.
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申请公布号 |
US2004101065(A1) |
申请公布日期 |
2004.05.27 |
申请号 |
US20020300637 |
申请日期 |
2002.11.21 |
申请人 |
HAGH SOTOUDEH HAMEDI;SALAMA C. ANDRE T. |
发明人 |
HAGH SOTOUDEH HAMEDI;SALAMA C. ANDRE T. |
分类号 |
H04L27/36;(IPC1-7):H04K1/02;H04L25/03;H04L25/49 |
主分类号 |
H04L27/36 |
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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