公开(公告)号：US07623837B2

公开(公告)日：2009-11-24

申请号：US11125291

申请日：2005-05-09

申请人： Andreia Cathelin ,  Didier Belot

发明人： Andreia Cathelin ,  Didier Belot

IPC分类号： H04B1/10

CPC分类号： H03H7/0169 ,  H03H9/74 ,  H04B1/28

摘要： A heterodyne receiving circuit for a digital communication system including a first band pass filter receiving a signal from an antenna, an amplifying circuit and a second narrow band pass filter for selecting one particular channel within a band of frequencies. The two filters are carried out with integrated BAW-type tunable resonators which can be adjusted, respectively, by a first electrical signal and a second electrical signal generated by two PLL-type frequency control loops. The second frequency control loop has a variable division factor for the purpose of selecting one particular channel within said band of frequencies. In addition, the receiving circuit includes a mixer for mixing the signal generated at the output of said second filter with a local oscillation frequency in order to produce an intermediate frequency. The division factor is controlled by a digital processing of the intermediate frequency.

摘要翻译： 一种用于数字通信系统的外差接收电路，包括接收来自天线的信号的第一带通滤波器，放大电路和用于选择频带内的一个特定信道的第二窄带通滤波器。 两个滤波器由集成的BAW型可调谐谐振器进行，分别可以通过由两个PLL型频率控制回路产生的第一电信号和第二电信号来调节。 第二频率控制回路具有可变分频因子，用于选择所述频带内的一个特定信道。 此外，接收电路包括用于将在所述第二滤波器的输出处产生的信号与本地振荡频率混合的混频器，以便产生中频。 分频因子由中频数字处理控制。

公开(公告)号：US20090189711A1

公开(公告)日：2009-07-30

申请号：US12022257

申请日：2008-01-30

申请人： Rudy M. Emrick ,  Islamshah S. Amlani

发明人： Rudy M. Emrick ,  Islamshah S. Amlani

IPC分类号： H01P5/18

CPC分类号： H01P5/12 ,  H03H9/74 ,  Y10S977/75 ,  Y10S977/932

摘要： A one-dimensional nanostructure multi-port coupler (100, 300, 400, 600) is provided for use in an RF device (700). The coupler (100, 300, 400, 600) includes a first plurality of one-dimensional nanostructures (102) aligned substantially in a first direction (110) and coupled between the input (103) and first output (103′), and a second plurality of one-dimensional nanostructures (104) substantially aligned in a second direction (112), coupled to a second output (105), and disposed contiguous to the first plurality of one-dimensional nanostructures (102). The first and second plurality of one-dimensional nanostructures (102, 104) may comprise first and second contiguous planes. The amount of RF energy coupled may be controlled by varying the width, density, diameter, and type of one of the plurality of one-dimensional nanostructures (102, 104) versus the other. The amount of RF energy coupled may also be controlled by varying the angle between the first and second plurality of one-dimensional nanostructures (102, 104) and by disposing a dielectric material (132) therebetween.

摘要翻译： 提供了用于RF装置（700）中的一维纳米结构多端口耦合器（100,300,400,600）。 耦合器（100,300,400,600）包括基本上在第一方向（110）上排列并耦合在输入（103）和第一输出（103'）之间的第一多个一维纳米结构（102），以及 第二多个一维纳米结构（104），其在第二方向（112）上基本对准，耦合到第二输出（105）并且邻近所述第一多个一维纳米结构（102）设置。 第一和第二多个一维纳米结构（102,104）可以包括第一和第二连续平面。 可以通过改变多个一维纳米结构（102,104）中的一个相对于另一个的宽度，密度，直径和类型来控制耦合的RF能量的量。 也可以通过改变第一和第二多个一维纳米结构（102,104）之间的角度并且通过在它们之间设置电介质材料（132）来控制耦合的RF能量的量。