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1. 发明授权

US09571036B2 Heterodyne receiver structure, multi chip module, multi integrated circuit module, and method for processing a radio frequency signal 有权
标题翻译：异频接收机结构，多芯片模块，多集成电路模块以及射频信号处理方法
公开(公告)号：US09571036B2
公开(公告)日：2017-02-14
申请号：US13496234
申请日：2012-02-07
申请人： Karl-Gösta Sahlman , Tomas Lieback
发明人： Karl-Gösta Sahlman , Tomas Lieback
IPC分类号： H04B1/10 , H03D7/18 , H04B1/06 , H04B1/00
CPC分类号： H03D7/18 , H04B1/0021 , H04B1/0046 , H04B1/06
摘要： A heterodyne receiver structure comprises a frequency conversion block arranged to convert an incoming analog radio frequency (RF) signal to an analog intermediate frequency (IF) signal; a filter block arranged to filter said analog IF signal; and an analog-to-digital (AD) converter block arranged to convert said filtered analog IF signal to a digital signal, wherein the AD converter block (309) is arranged to convert the filtered analog IF signal to the digital signal by using a sampling frequency (fs) which is at least N times a maximum bandwidth of the filtered analog IF signal, wherein the frequency spectrum from zero to the sampling frequency is divided into N frequency zones of equal width, wherein N is an even positive number higher than two; the frequency conversion block (304) is arranged to convert the incoming analog RF signal to the analog IF signal such that the analog IF signal is located in any of the N/2-1 frequency zones having lowest frequency; and the filter block (306-308) is arranged to low pass the analog IF signal such that any disturbing signal located in a zone, which would have a mirror image after the AD conversion in the zone, in which the analog IF signal is located, is filtered away, wherein the heterodyne receiver structure further comprises a digital signal processing block (311) arranged to filter said digital signal.
摘要翻译：外差接收机结构包括频率转换块，其被布置为将输入的模拟射频（RF）信号转换为模拟中频（IF）信号; 滤波器块，布置成滤波所述模拟IF信号; 以及被配置为将所述滤波的模拟IF信号转换为数字信号的模数（AD）转换器模块，其中AD转换器模块（309）被布置成通过使用采样将滤波后的模拟IF信号转换为数字信号频率（fs）至少为经滤波的模拟IF信号的最大带宽的N倍，其中从零到采样频率的频谱被分成相等宽度的N个频域，其中N是高于2的偶数正数 ; 变频块（304）被配置为将输入的模拟RF信号转换为模拟IF信号，使得模拟IF信号位于具有最低频率的N / 2-1频带中的任一个中; 并且滤波器块（306-308）被布置为使模拟IF信号低通，使得位于区域中的任何干扰信号将在模拟IF信号所在的区域中的AD转换之后具有镜像被滤除，其中外差接收器结构还包括布置成滤波所述数字信号的数字信号处理块（311）。

2. 发明申请

US20130202067A1 Heterodyne Receiver Structure, Multi Chip Module, Multi Integrated Circuit Module, and Method for Processing a Radio Frequency Signal 有权
标题翻译：异步接收机结构，多芯片模块，多集成电路模块和处理射频信号的方法
公开(公告)号：US20130202067A1
公开(公告)日：2013-08-08
申请号：US13496234
申请日：2012-02-07
申请人： Karl-Gösta Sahlman , Tomas Lieback
发明人： Karl-Gösta Sahlman , Tomas Lieback
IPC分类号： H04L27/06
CPC分类号： H03D7/18 , H04B1/0021 , H04B1/0046 , H04B1/06
摘要： A heterodyne receiver structure comprises a frequency conversion block arranged to convert an incoming analogue radio frequency (RF) signal to an analogue intermediate frequency (IF) signal; a filter block arranged to filter said analogue IF signal; and an analogue-to-digital (AD) converter block arranged to convert said filtered analogue IF signal to a digital signal, wherein the AD converter block (309) is arranged to convert the filtered analogue IF signal to the digital signal by using a sampling frequency (fs) which is at least N times a maximum bandwidth of the filtered analogue IF signal, wherein the frequency spectrum from zero to the sampling frequency is divided into N frequency zones of equal width, wherein N is an even positive number higher than two; the frequency conversion block (304) is arranged to convert the incoming analogue RF signal to the analogue IF signal such that the analogue IF signal is located in any of the N/2-1 frequency zones having lowest frequency; and the filter block (306-308) is arranged to low pass the analogue IF signal such that any disturbing signal located in a zone, which would have a mirror image after the AD conversion in the zone, in which the analogue IF signal is located, is filtered away, wherein the heterodyne receiver structure further comprises a digital signal processing block (311) arranged to filter said digital signal.
摘要翻译：外差接收机结构包括频率转换块，其布置成将输入的模拟射频（RF）信号转换为模拟中频（IF）信号; 滤波器块，布置成滤波所述模拟IF信号; 和模数（AD）转换器块，被布置成将所述滤波的模拟IF信号转换成数字信号，其中AD转换器块被设置成通过使用采样将滤波后的模拟IF信号转换成数字信号频率（fs）至少为滤波模拟IF信号的最大带宽的N倍，其中从零到采样频率的频谱被分成相等宽度的N个频域，其中N是高于2的偶数正数 ; 频率转换块（304）被配置为将输入的模拟RF信号转换成模拟IF信号，使得模拟IF信号位于具有最低频率的N / 2-1频带中的任一个中; 并且滤波器块（306-308）被布置为使模拟IF信号低通，使得位于区域中的任何干扰信号将在模拟IF信号所在的区域中的AD转换之后具有镜像被滤除，其中外差接收器结构还包括布置成滤波所述数字信号的数字信号处理块（311）。

3. 发明申请

US20070093227A1 Frequency shifting of wcdma carriers for variable carrier separation 审中-公开
标题翻译：用于可变载波分离的wcdma载波的频移
公开(公告)号：US20070093227A1
公开(公告)日：2007-04-26
申请号：US10578689
申请日：2003-11-24
申请人： Tomas Lieback , Derek Hagen
发明人： Tomas Lieback , Derek Hagen
IPC分类号： H04B1/06 , H04B7/00
CPC分类号： H03M1/122 , H03M3/472 , H04J13/00 , H04L5/06
摘要： The invention relates to a method and a device for processing an electromagnetic signal comprising first and second carriers at first and second carrier frequencies. The method comprises splitting the signal into first and second branches, a first shifting of the frequency of the signal in each of the branches by respective first frequency shifts, and filtering the signal in the first and the second branch in respective first filters. In addition, there is a second shifting of the frequency in each of the branches by respective second frequency shifts, and a first frequency distance between the first frequency shifts, such that after the first shift, the first carrier in the first branch has essentially the same center frequency as the second carrier in the second branch. The first filters have the same filter characteristics, so that the signal in each branch after the first filter comprises only one of said first or second carrier wave, but at the same center frequency.
摘要翻译：本发明涉及一种用于在第一和第二载波频率处理包括第一和第二载波的电磁信号的方法和装置。该方法包括将信号分成第一和第二分支，通过相应的第一频移首先移位每个分支中的信号的频率，并对相应的第一滤波器中的第一和第二分支中的信号进行滤波。此外，通过相应的第二频移，在每个分支中频率第二移位，并且第一频移之间的第一频率距离，使得在第一移位之后，第一分支中的第一载波基本上是与第二分支中的第二载波相同的中心频率。第一滤波器具有相同的滤波器特性，使得在第一滤波器之后的每个分支中的信号仅包括所述第一或第二载波中的一个，但是处于相同的中心频率。

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