公开(公告)号：EP1328039A2

公开(公告)日：2003-07-16

申请号：EP03250090.2

申请日：2003-01-07

申请人： Broadcom Corporation

发明人： Gomez, Ramon A. ,  Burns, Lawrence M. ,  Chang, Sung-Hsien ,  Pobanz, Carl W.

IPC分类号： H01P1/203

CPC分类号： H01P7/00 ,  H01P1/20 ,  H01P1/203 ,  H01P1/20381 ,  H05K1/165

摘要： A printed bandpass filter (200) is mounted on a precision substrate to eliminate the need for post-fabrication tuning. The filter input is capacitively coupled to a series of quarter wavelength resonators (206, 214, 220) and the filter output. The quarter wavelength resonators are printed as spirals to reduce filter size. The resonators define the bandpass characteristics of the filter. The filter also weakly couples the input signal to the filter output in a manner to cancel the signal image. Mechanical clips mitigate thermal stress on solder connections when the precision substrate mounted on a second printed circuit board.

公开(公告)号：EP1328039B1

公开(公告)日：2010-08-25

申请号：EP03250090.2

申请日：2003-01-07

申请人： Broadcom Corporation

发明人： Gomez, Ramon A. ,  Burns, Lawrence M. ,  Chang, Sung-Hsien ,  Pobanz, Carl W.

IPC分类号： H01P1/203

CPC分类号： H01P7/00 ,  H01P1/20 ,  H01P1/203 ,  H01P1/20381 ,  H05K1/165

公开(公告)号：EP1328039A3

公开(公告)日：2004-02-25

申请号：EP03250090.2

申请日：2003-01-07

申请人： Broadcom Corporation

发明人： Gomez, Ramon A. ,  Burns, Lawrence M. ,  Chang, Sung-Hsien ,  Pobanz, Carl W.

IPC分类号： H01P1/203

CPC分类号： H01P7/00 ,  H01P1/20 ,  H01P1/203 ,  H01P1/20381 ,  H05K1/165

摘要： A printed bandpass filter (200) is mounted on a precision substrate to eliminate the need for post-fabrication tuning. The filter input is capacitively coupled to a series of quarter wavelength resonators (206, 214, 220) and the filter output. The quarter wavelength resonators are printed as spirals to reduce filter size. The resonators define the bandpass characteristics of the filter. The filter also weakly couples the input signal to the filter output in a manner to cancel the signal image. Mechanical clips mitigate thermal stress on solder connections when the precision substrate mounted on a second printed circuit board.

摘要翻译： 印刷的带通滤波器（200）安装在精密基板上以消除对后制造调谐的需要。 滤波器输入电容耦合到一系列四分之一波长谐振器（206,214,220）和滤波器输出。 四分之一波长谐振器被打印为螺旋线以减小滤波器尺寸。 谐振器定义滤波器的带通特性。 滤波器也以以消除信号图像的方式将输入信号弱耦合到滤波器输出。 当安装在第二印刷电路板上的精密基板时，机械夹可减轻焊接连接处的热应力。

公开(公告)号：EP1227537A3

公开(公告)日：2003-06-11

申请号：EP02250408.8

申请日：2002-01-21

申请人： Broadcom Corporation

发明人： Burns, Lawrence M. ,  Pobanz, Carl W.

IPC分类号： H01P5/10

CPC分类号： H05K1/0239 ,  H01P5/10 ,  H05K2201/10015

摘要： The invention is a balun transformer that converts a single-ended (or unbalanced) signal to a differential (or balanced) signal. The balun is a printed metal pattern on a circuit board in conjunction with several low cost chip capacitors and a low cost chip inductor. The balun transformer is a modified Marchand balun that is implemented using printed transmission lines. The balun has a plurality of coupled transmission lines (404-414) to improve tolerances to variations in PC board fabrication. To make the balun compact, it is electrically lengthened through the use of capacitive loading (418), which reduces the required physical size. Additionally, the capacitors increase the bandwidth due to the resonant interaction between the short inductive balun and the capacitors that are placed in series with the input and the output.

公开(公告)号：EP1227537A2

公开(公告)日：2002-07-31

申请号：EP02250408.8

申请日：2002-01-21

申请人： Broadcom Corporation

发明人： Burns, Lawrence M. ,  Pobanz, Carl W.

IPC分类号： H01P5/10

CPC分类号： H05K1/0239 ,  H01P5/10 ,  H05K2201/10015

摘要： The invention is a balun transformer that converts a single-ended (or unbalanced) signal to a differential (or balanced) signal. The balun is a printed metal pattern on a circuit board in conjunction with several low cost chip capacitors and a low cost chip inductor. The balun transformer is a modified Marchand balun that is implemented using printed transmission lines. The balun has a plurality of coupled transmission lines (404-414) to improve tolerances to variations in PC board fabrication. To make the balun compact, it is electrically lengthened through the use of capacitive loading (418), which reduces the required physical size. Additionally, the capacitors increase the bandwidth due to the resonant interaction between the short inductive balun and the capacitors that are placed in series with the input and the output.

摘要翻译： 本发明是将单端（或不平衡）信号转换为差分（或平衡）信号的平衡 - 不平衡变压器。 平衡 - 不平衡转换器是电路板上的印刷金属图案，与几个低成本芯片电容器和低成本芯片电感器相结合。 平衡 - 不平衡变压器是经过修改的Marchand平衡 - 不平衡转换器，采用印刷传输线实现。 平衡 - 不平衡转换器具有多个耦合传输线（404-414），以改善对PC板制造变化的公差。 为了使平衡 - 不平衡变压器紧凑，通过使用电容负载（418）进行电延长，这减少了所需的物理尺寸。 此外，由于短路电感平衡 - 不平衡转换器和与输入和输出串联放置的电容器之间的谐振相互作用，电容器会增加带宽。