发明公开
EP1605584A1 Device for converting frequencies, method of calibrating the said device and system for transmitting/receiving electromagnetic signals comprising such a device
有权
频率变换装置，用于校准的方法，所述装置及系统具有这样的装置发送/接收的电磁信号
- 专利标题： Device for converting frequencies, method of calibrating the said device and system for transmitting/receiving electromagnetic signals comprising such a device
- 专利标题（中）： 频率变换装置，用于校准的方法，所述装置及系统具有这样的装置发送/接收的电磁信号
-
申请号： EP05104837.9申请日： 2005-06-03
-
公开(公告)号： EP1605584A1公开(公告)日： 2005-12-14
- 发明人: Le Naour, Jean-Yves , Robert, Jean-Luc , Lo Hine Tong, Dominique
- 申请人： Thomson Licensing
- 申请人地址： 46, quai Alphonse Le Gallo 92100 Boulogne Billancourt FR
- 专利权人： Thomson Licensing
- 当前专利权人： Thomson Licensing
- 当前专利权人地址： 46, quai Alphonse Le Gallo 92100 Boulogne Billancourt FR
- 代理机构： Ruellan-Lemonnier, Brigitte
- 优先权： FR0451151 20040609
- 主分类号： H03D7/18
- IPC分类号： H03D7/18
摘要：
The invention relates to a device for converting frequencies comprising a local oscillator (30) of fixed frequency and a first mixer (31) with two inputs and an output, a first input receiving the signal to be converted and a second input receiving the signal arising from the local oscillator.
It comprises a second mixer with two inputs and an output, a first input receiving the signal arising from the phase-shifted local oscillator and the second input receiving a dc signal whose value is dependent on the power of the residual spectral component at the output of an adder receiving as input the signals arising from the first and from the second mixer(s) and giving as output a transposed signal.
The invention applies in particular in terminals operating in the Ka band.
It comprises a second mixer with two inputs and an output, a first input receiving the signal arising from the phase-shifted local oscillator and the second input receiving a dc signal whose value is dependent on the power of the residual spectral component at the output of an adder receiving as input the signals arising from the first and from the second mixer(s) and giving as output a transposed signal.
The invention applies in particular in terminals operating in the Ka band.
公开/授权文献
信息查询
IPC分类:
