发明授权
US08229029B2 Transmitter with reduced spectral regrowth and associated methods
有权
发射机具有减少的光谱再生长和相关方法
- 专利标题： Transmitter with reduced spectral regrowth and associated methods
- 专利标题（中）： 发射机具有减少的光谱再生长和相关方法
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申请号： US12353318申请日： 2009-01-14
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公开(公告)号： US08229029B2公开(公告)日： 2012-07-24
- 发明人: Eric Campbell , Scott Zeller , Bryce Tennant
- 申请人： Eric Campbell , Scott Zeller , Bryce Tennant
- 申请人地址： US FL Melbourne
- 专利权人： Harris Corporation
- 当前专利权人： Harris Corporation
- 当前专利权人地址： US FL Melbourne
- 代理机构： Allen, Dyer, Doppelt, Milbrath & Gilchrist, P.A.
- 主分类号： H04K1/20
- IPC分类号： H04K1/20 ; H04L25/03 ; H04L25/49
摘要：
A transmitter includes a monitoring circuit for monitoring phase transitions of in-phase and quadrature components of an input phase modulated signal. A filter is downstream from the monitoring circuit for generating a filtered phase modulated signal within an allocated bandwidth. A transmit gain controller is downstream from the filter for adjusting an amplitude of the filtered phase modulated signal based on a dynamic reference envelope control signal. A control circuit cooperates with the monitoring circuit and the transmit gain controller for generating the dynamic reference envelope control signal so that phase transitions are suppressed in the filtered phase modulated signal and so that the filtered phase modulated signal remains within the allocated bandwidth.
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