公开(公告)号：EP0966099A1

公开(公告)日：1999-12-22

申请号：EP99401335.7

申请日：1999-06-03

申请人： Radio Frequency Systems, Inc

发明人： Larkin, Robert S. ,  Sheldon, Meredith K.

IPC分类号： H03F3/60

CPC分类号： H03F3/602 ,  H04L2025/03522

摘要： The invention provides a power sharing amplifier system for a cellular communications system, having with an 8th order transform matrix circuit, eight power sharing amplifiers and an 8th order inverse transform matrix circuit. The 8th order transform matrix circuit has six input ports and responds to six RF input signals for providing 8th order transform matrix RF input signals. The 8th order transform matrix circuit also has two input ports that do not receive input signals, but instead are coupled through a resistor to ground. The eight power sharing amplifiers respond to the 8th order transform matrix RF input signals, for providing eight amplified transformed RF signals. The 8th order inverse transform matrix circuit responds to the eight amplified transformed RF signals, for providing six inverse transform amplified RF output signals to six output ports. The 8th order inverse transform matrix circuit also has two output ports that do not provide output signals to an antenna, but instead are coupled through a resistor to ground for dissipating intermodulation distortion products.

摘要翻译： 本发明提供一种用于蜂窝通信系统的功率共享放大器系统，具有8阶变换矩阵电路，8个功率共享放大器和8阶逆变换矩阵电路。 第八阶变换矩阵电路具有六个输入端口，并响应六个RF输入信号，用于提供8阶变换矩阵RF输入信号。 第八阶变换矩阵电路还具有两个不接收输入信号的输入端口，而是通过电阻器耦合到地。 八个功率共享放大器响应于第八阶变换矩阵RF输入信号，用于提供八个放大的变换RF信号。 8阶逆变换矩阵电路响应八个放大的变换RF信号，用于向六个输出端口提供六个逆变换放大的RF输出信号。 8阶逆变换矩阵电路还具有不向天线提供输出信号的两个输出端口，而是通过电阻器耦合到地来消散互调失真产物。

公开(公告)号：EP0966098A1

公开(公告)日：1999-12-22

申请号：EP99401082.5

申请日：1999-05-03

申请人： Radio Frequency Systems, Inc

发明人： Larkin, Robert S.

IPC分类号： H03F3/60

CPC分类号： H03F3/602

摘要： The invention provides a power sharing amplifier system having an N by N transform matrix circuit, N amplifiers and an N by N inverse transform matrix circuit. The N by N transform matrix circuit has N input ports that respond to M input signals and provide N transform matrix input signals, where M is less than N. The N by N transform matrix circuit features at least one input port that does not receive an input signal but instead is coupled to ground. The N amplifiers respond to the transform matrix input signals and provide N amplified transform matrix input signals. The N by N inverse transform matrix circuit responds to the N amplified transform matrix input signals and provides N inverse transform matrix amplified output signals to output ports. Moreover, the N by N inverse transform matrix circuit features at least one output dissipation port that is coupled to ground to dissipate the intermodulation products contain thereon. In the power sharing amplifier system of the present invention, M and N are integers greater than 1 and 2 respectively, M is less than N, M is not equal to 6, and N is not equal to 8.

摘要翻译： 本发明提供了一种具有N×N变换矩阵电路，N个放大器和一个N×N逆变换矩阵电路的功率共享放大器系统。 N乘N变换矩阵电路具有N个输入端口，其响应M个输入信号并提供N个变换矩阵输入信号，其中M小于N.N乘N变换矩阵电路具有至少一个输入端口，该端口不接收 输入信号，而是耦合到地。 N个放大器响应变换矩阵输入信号并提供N个放大的变换矩阵输入信号。 N乘N反变换矩阵电路响应N个放大的变换矩阵输入信号，并将N个逆变换矩阵放大的输出信号提供给输出端口。 此外，N乘N反变换矩阵电路具有至少一个输出耗散端口，该输出耗散端口耦合到地以消散其上包含的互调产物。 在本发明的功率均分放大器系统中，M和N分别是大于1和2的整数，M小于N，M不等于6，N不等于8。

公开(公告)号：EP0969611A3

公开(公告)日：2003-11-05

申请号：EP99440141.2

申请日：1999-06-11

申请人： Radio Frequency Systems Inc.

发明人： Larkin, Robert S. ,  Wu, Qiang ,  Farris, Robert L.

IPC分类号： H04B7/12 ,  H04B10/12 ,  H04B7/08

CPC分类号： H04B7/12 ,  H04B10/25758

摘要： An apparatus for communicating, over a single transmission medium, two signals of substantially the same center frequency. The apparatus offsets in frequency one of the signals by combining the signal with the signal from a local oscillator. The apparatus then transmits the two signals, one offset from the other, as well as the signal from the local oscillator to allow for recovery of the two signals with a precise correction for the offset. In particular, the transmission medium is an optical fiber and the two signals are a main RF signal and a diversity RF signal received, respectively, by a main element and a diversity element of a diversity antenna system. The invention is of use, for example, in providing to a microbase station a main RF signal and its diversity RF signal received at a diversity antenna system remote from the microbase station and connected to the microbase station by an optical fiber.

公开(公告)号：EP0969611B1

公开(公告)日：2005-11-30

申请号：EP99440141.2

申请日：1999-06-11

申请人： Radio Frequency Systems, Inc.

发明人： Larkin, Robert S. ,  Wu, Qiang ,  Farris, Robert L.

IPC分类号： H04B7/12 ,  H04B10/12 ,  H04B7/08

CPC分类号： H04B7/12 ,  H04B10/25758

公开(公告)号：EP0969611A2

公开(公告)日：2000-01-05

申请号：EP99440141.2

申请日：1999-06-11

申请人： Radio Frequency Systems Inc.

发明人： Larkin, Robert S. ,  Wu, Qiang ,  Farris, Robert L.

IPC分类号： H04B7/12

CPC分类号： H04B7/12 ,  H04B10/25758

摘要： An apparatus for communicating, over a single transmission medium, two signals of substantially the same center frequency. The apparatus offsets in frequency one of the signals by combining the signal with the signal from a local oscillator. The apparatus then transmits the two signals, one offset from the other, as well as the signal from the local oscillator to allow for recovery of the two signals with a precise correction for the offset. In particular, the transmission medium is an optical fiber and the two signals are a main RF signal and a diversity RF signal received, respectively, by a main element and a diversity element of a diversity antenna system. The invention is of use, for example, in providing to a microbase station a main RF signal and its diversity RF signal received at a diversity antenna system remote from the microbase station and connected to the microbase station by an optical fiber.

摘要翻译： 一种用于在单个传输介质上通信具有基本上相同的中心频率的两个信号的装置。 该装置通过将信号与来自本地振荡器的信号组合来抵消频率中的一个信号。 然后，该装置发送两个信号，一个彼此偏移的信号以及来自本地振荡器的信号，以允许用于偏移的精确校正来恢复两个信号。 特别地，传输介质是光纤，两个信号分别由分集天线系统的主元件和分集元件分别接收的主RF信号和分集RF信号。 本发明例如用于向微基站提供在远离微基站的分集天线系统处接收并通过光纤连接到微基站的主RF信号及其分集RF信号。